Register here

Author Topic: USN/DARPA ACTUV program  (Read 21257 times)

Offline BAROBA

  • CLEARANCE: Secret
  • **
  • Posts: 320
  • 3D artist
    • BAROBA's 3D portfolio-site
USN/DARPA ACTUV program
« on: April 07, 2011, 03:31:50 am »
https://actuv.darpa.mil/

From the site :

DARPA’s Anti-Submarine Warfare game goes live

April 04, 2011

Can you best an enemy submarine commander so he can’t escape into the ocean depths? If you think you can, you are invited to put yourself into the virtual driver’s seat of one of several Anti-Submarine Warfare (ASW) Continuous Trail Unmanned Vessel (ACTUV) configurations and show the world how you can use its capabilities to follow an enemy submarine.

DARPA’s ACTUV program is developing a fundamentally new tool for the Navy’s ASW toolkit and seeks your help to explore how best to use this tool to track quiet submarines. Before autonomous software is developed for ACTUV’s computers, DARPA needs to determine what approaches and methods are most effective. To gather information from a broad spectrum of users, ACTUV has been integrated into the Dangerous WatersTM game. DARPA is offering this new ACTUV Tactics Simulator for free public download. [https://actuv.darpa.mil]   

This software has been written to simulate actual evasion techniques used by submarines, challenging each player to track them successfully. Your tracking vessel is not the only ship at sea, so you’ll need to safely navigate among commercial shipping traffic as you attempt to track the submarine, whose driver has some tricks up his sleeve. You will earn points as you complete mission objectives, and will have the opportunity to see how you rank against the competition on DARPA’s leaderboard page. [https://actuv.darpa.mil/LeaderBoard.aspx] You can also share your experiences and insights from playing the simulator with others.

As you complete each scenario in the simulation, you may submit your tracking tactics to DARPA for analysis.  DARPA will select the best tactics and build them into the ACTUV prototype.

I think some people here would like this kind of game

Cheers,

Rob

Offline Grey Havoc

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 7558
  • _ \\ //
Re: USN/DARPA ACTUV program
« Reply #1 on: September 02, 2011, 06:33:55 am »
In other words, DARPA is planning to use Fuzzy Logic algorithms as a component of the command and control system.

For new members who may be unfamiliar with the ACTUV project:

[IMAGE CREDIT: DARPA/DEFENCE.PROFESSIONALS]



Some general background:
http://www.wired.com/dangerroom/2011/08/70-days-at-sea-for-new-navy-robot-subs/#more-53609
« Last Edit: September 02, 2011, 07:31:01 am by Grey Havoc »
To the Stars

Offline OM

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 753
    • OMBlog
Re: USN/DARPA ACTUV program
« Reply #2 on: September 09, 2011, 10:18:49 pm »
...Heh, for some reason, the concept of using a game to dis/prove logistical theories reminds me of JFK Reloaded. Too bad DARPA isn't offering a cash prize for the best performances  :-[

Offline Grey Havoc

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 7558
  • _ \\ //
Re: USN/DARPA ACTUV program
« Reply #3 on: August 18, 2012, 08:17:49 am »
I'm not sure if this actually is the latest version (SAIC proposal) of the concept or some early program art now being used as PR fodder:


http://www.darpa.mil/NewsEvents/Releases/2012/08/16.aspx
« Last Edit: August 18, 2012, 08:25:15 am by Grey Havoc »
To the Stars

Offline Grey Havoc

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 7558
  • _ \\ //
Re: USN/DARPA ACTUV program
« Reply #4 on: August 19, 2012, 06:29:40 am »
Via the 'Rock, Paper, Shotgun' gaming blog, a screenshot from the DARPA game, showing the original (current?) design:
To the Stars

Offline Grey Havoc

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 7558
  • _ \\ //
Re: USN/DARPA ACTUV program
« Reply #5 on: August 19, 2012, 03:18:05 pm »
Looks like the concept art a couple of posts back was based on SAIC's design after all, here's a somewhat cheesy company video via the Ares blog.

I think the earlier semi-submersible concept was better, but we'll see I suppose.
« Last Edit: August 19, 2012, 03:20:48 pm by Grey Havoc »
To the Stars

Offline Triton

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 9659
  • Donald McKelvy
    • Deep Blue to Wild Blue
Re: USN/DARPA ACTUV program
« Reply #6 on: August 21, 2012, 12:49:24 pm »

Offline Jemiba

  • Global Moderator
  • CLEARANCE: Top Secret
  • ****
  • Posts: 7812
It takes a long time, before all mistakes are made ...

Offline ouroboros

  • CLEARANCE: Secret
  • **
  • Posts: 344
Re: USN/DARPA ACTUV program
« Reply #8 on: August 24, 2012, 04:15:22 pm »
Why a wave piercing trimaran now, rather than the original semisubmersible? Increased need for equipment above the waterline? Possibly expanding mission scope, as a littoral USV to counter LCS deficiencies? Some recognized need for more surface/AAA self defense weapons? Possible reuse of the hull form factor of the small scale test ship for the DDG-1000 Zumwalts?

Offline Grey Havoc

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 7558
  • _ \\ //
Re: USN/DARPA ACTUV program
« Reply #9 on: August 28, 2012, 12:07:30 pm »
Why a wave piercing trimaran now, rather than the original semisubmersible? Increased need for equipment above the waterline? Possibly expanding mission scope, as a littoral USV to counter LCS deficiencies? Some recognized need for more surface/AAA self defense weapons? Possible reuse of the hull form factor of the small scale test ship for the DDG-1000 Zumwalts?

I'd say the mission scope expansion theory holds most water, so to speak.
To the Stars

Offline Grey Havoc

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 7558
  • _ \\ //
Re: USN/DARPA ACTUV program
« Reply #10 on: March 13, 2013, 04:32:56 am »
Via MilitaryPhotos.net: Raytheon's 5th generation hull mounted sonar to enable anti-submarine, undersea warfare (Navy Recognition)

Quote
Raytheon Company was awarded a sub-contract from Science Applications International Corporation (SAIC) to deliver its first 5th generation medium frequency hull mounted sonar system as part of the Defense Advanced Research Projects Agency (DARPA) Anti-Submarine Warfare Continuous Trail Unmanned Vessel (ACTUV) program.

According to the U.S. Navy, 43 nations operate more than 600 submarines; the steady increase in undersea vessels makes tracking a challenge. Raytheon's Modular Scalable Sonar System (MS3) will integrate into SAIC's prototype trimaran vessel as the primary search and detection sonar. The system is designed to provide search, detection, passive-threat filtering, localization and tracking capabilities without requiring human operation.

 MS3 enables anti-submarine warfare (ASW) and undersea warfare with capabilities such as active and passive search, torpedo detection and alertment, and small object avoidance. Data from multiple sonars may be fed to a central command and control node, providing a common operating picture as part of the ASW mission. By integrating a host of capabilities in a single sonar system, Raytheon delivers an affordable solution that addresses critical naval challenges.

 
To the Stars

Offline Grey Havoc

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 7558
  • _ \\ //
Re: USN/DARPA ACTUV program
« Reply #11 on: March 13, 2013, 05:05:42 am »

Original Caption: An artist rendering of the autonomous vessel.   DARPA
[IMAGE CREDIT: Business Insider]

http://www.businessinsider.com/navy-wants-completely-craft-remotely-subs-submarines-2013-3
To the Stars

Offline Triton

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 9659
  • Donald McKelvy
    • Deep Blue to Wild Blue
Re: USN/DARPA ACTUV program
« Reply #12 on: July 13, 2014, 04:24:29 pm »
"Anti-Submarine Warfare Continuous Trail Unmanned Vessel Under Construction, At-Sea Testing Expected by 2015"

Source:
http://www.asdnews.com/news-55798/Anti-Submarine_Warfare_Continuous_Trail_Unmanned_Vessel_Under_Construction,_At-Sea_Testing_Expected_by_2015.htm

Quote
An autonomous unmanned vessel designed to track quiet diesel-electric submarines spanning miles of ocean depths for months at a time with minimal human input is now under construction and is expected to set sail for testing in 2015. Leidos (NYSE: LDOS), a national security, health and engineering solutions company, has begun construction on ACTUV (Autonomous Continuous Trail Unmanned Vessel) under a Defense Advanced Research Project Agency (DARPA) program for the design, development, and construction of a vessel originally conceived for an anti-submarine warfare mission.

"ACTUV's advanced sensor technology should allow for continuous surveillance which, combined with the vessel architecture and design, is expected to provide autonomous safe navigation supporting Navy missions around the world," said Leidos Group President, John Fratamico.
ACTUV carries other sensors and mission packages designed to allow it to conduct a variety of Intelligence, Surveillance and Reconnaissance and other alternate missions. With situational sensors that can ensure safe navigation, the ACTUV trimaran has electro optics, long range and short range radar.

"A cross-disciplinary Leidos team leveraged insights and innovation from across the organization to develop the concept of the autonomous unmanned vessel. It would help keep our troops out of harm's way and provide capability in more harsh environmental conditions for a longer period of time," added Fratamico.

Maritime and hydrodynamic engineers designed the platform, and scientists and experts designed autonomy for safe navigation, status and health reporting, and sensor control and processing. Analytics experts programmed the logic for identifying other vessels and predicting their behavior.

Leidos received direction to start construction of the ACTUV from DARPA Program Manager Scott Littlefield at the conclusion of a Production Readiness Review held in February.  Christensen Shipyard, Ltd. (CSL), is constructing ACTUV in Vancouver, Washington using non-traditional composite structures and modular construction techniques under supervision of Leidos and Oregon Iron Works (Clackamas, Oregon).  CSL employs a lean manufacturing process with parallel work flow to complete ACTUV construction in approximately 15 months.  ACTUV is scheduled to be launched on the Columbia River in 2015.

Maritime expertise at Leidos includes development of manned, low observable combat patrol craft, autonomous vehicles, payloads, and component development.  Other capabilities include ocean science, phenomenology, advance modeling, and undersea simulation to support the development of ocean sensors, processing, and deployable system solutions.  Leidos production facilities are located in Long Beach, Miss., Lynnwood, Wash., Sterling, Va., St. Petersburg, Fla. and Hawaii, with offices in Newport, R.I., Arlington, Va.,  Bowie, Md., Long Beach, Miss., Poulsbo, Wash., and San Diego, Calif.

Offline Triton

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 9659
  • Donald McKelvy
    • Deep Blue to Wild Blue
Re: USN/DARPA ACTUV program
« Reply #13 on: July 13, 2014, 04:25:54 pm »
Published on Apr 10, 2014

Leidos developed an autonomous vessel to shadow diesel-electric subs for months across thousands of miles of ocean and chase them out of strategic waters.



Offline Triton

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 9659
  • Donald McKelvy
    • Deep Blue to Wild Blue
Re: USN/DARPA ACTUV program
« Reply #14 on: July 13, 2014, 04:29:24 pm »

Offline Triton

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 9659
  • Donald McKelvy
    • Deep Blue to Wild Blue
Re: USN/DARPA ACTUV program
« Reply #15 on: July 13, 2014, 04:38:15 pm »
Quote
Leidos has begun construction on the Autonomous Continuous Trail Unmanned Vessel (ACTUV), a self-directed vessel equipped for at-sea intelligence, surveillance and reconnaissance missions. The ACTUV is a trimaran, a vessel similar to a catamaran, but with three separate hulls.

Approved under a Defense Advanced Research Project Agency program originally for the design, development and construction of an anti-submarine warfare vessel, the ACTUV platform is intended to track diesel-electric submarines through varying ocean conditions without the need for human participation.

Artist's impression of Leidos ACTUV.

Source:
http://www.c4isrnet.com/article/20140709/C4ISRNET08/307090006/DARPA-approves-construction-ACTUV-anti-submarine-warfare-vessel

Offline Triton

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 9659
  • Donald McKelvy
    • Deep Blue to Wild Blue
Re: USN/DARPA ACTUV program
« Reply #16 on: July 13, 2014, 05:12:39 pm »
"Anti-Submarine Warfare (ASW) Continuous Trail Unmanned Vessel (ACTUV)"

Source:
http://www.navaldrones.com/ACTUV.html

Quote
7 July 2014 - An autonomous unmanned vessel designed to track quiet diesel-electric submarines spanning miles of ocean depths for months at a time with minimal human input is now under construction and is expected to set sail for testing in 2015. Leidos (formerly SAIC), has begun construction on ACTUV (Autonomous Continuous Trail Unmanned Vessel) under a Defense Advanced Research Project Agency (DARPA) program for the design, development, and construction of a vessel originally conceived for an anti-submarine warfare mission.

"ACTUV's advanced sensor technology should allow for continuous surveillance which, combined with the vessel architecture and design, is expected to provide autonomous safe navigation supporting Navy missions around the world," said Leidos Group President, John Fratamico.

ACTUV carries other sensors and mission packages designed to allow it to conduct a variety of Intelligence, Surveillance and Reconnaissance and other alternate missions. With situational sensors that can ensure safe navigation, the ACTUV trimaran has electro optics, long range and short range radar.

"A cross-disciplinary Leidos team leveraged insights and innovation from across the organization to develop the concept of the autonomous unmanned vessel. It would help keep our troops out of harm's way and provide capability in more harsh environmental conditions for a longer period of time," added Fratamico.

Maritime and hydrodynamic engineers designed the platform, and scientists and experts designed autonomy for safe navigation, status and health reporting, and sensor control and processing. Analytics experts programmed the logic for identifying other vessels and predicting their behavior.

Leidos received direction to start construction of the ACTUV from DARPA Program Manager Scott Littlefield at the conclusion of a Production Readiness Review held in February.  Christensen Shipyard, Ltd. (CSL), is constructing ACTUV in Vancouver, Washington using non-traditional composite structures and modular construction techniques under supervision of Leidos and Oregon Iron Works (Clackamas, Oregon).  CSL employs a lean manufacturing process with parallel work flow to complete ACTUV construction in approximately 15 months.  ACTUV is scheduled for launch on the Columbia River in 2015.

« Last Edit: July 13, 2014, 07:37:49 pm by Triton »

Offline sferrin

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 10622
Re: USN/DARPA ACTUV program
« Reply #17 on: July 13, 2014, 05:17:05 pm »
So. . .I wonder how many thousands of people the Chinese will have playing this game.
"DARPA Hard"  It ain't what it use to be.

Offline Grey Havoc

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 7558
  • _ \\ //
Re: USN/DARPA ACTUV program
« Reply #18 on: November 14, 2014, 10:55:30 am »
A concept from SAAB and P.T Lundin (North Sea Boats) that is similar in some respects, the Bonefish USV.
To the Stars

Offline fightingirish

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 2023
Re: USN/DARPA ACTUV program
« Reply #19 on: March 28, 2015, 02:03:10 am »

The hull for the ACTUV prototype is under construction in preparation for planned water-borne testing of the full prototype later this year.

Video:

Code: [Select]
https://youtu.be/DQB2oDwgd9k
WANTED: TECHNOLOGIES TO ENABLE AUTOMATED LOOKOUTS FOR UNMANNED SURFACE VESSELS
Source: http://www.darpa.mil/NewsEvents/Releases/2015/03/26a.aspx
Slán,
fightingirish

Slán ist an Irish Gaelic word for Goodbye.  :)

Avatar:
McDonnell Douglas Model 225 painting by "The Artist" Michael Burke (Tavush) 2018, found at deviantart.com and at Secret Projects Forum » Research Topics » User Artwork » McDonnell Douglas Model 225 Painting

Offline Triton

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 9659
  • Donald McKelvy
    • Deep Blue to Wild Blue
Re: USN/DARPA ACTUV program
« Reply #20 on: March 28, 2015, 12:39:20 pm »
"The Military’s Robotic Ghost Ship Passes Critical Test"
by Patrick Tucker
March 24, 2015

Source:
http://www.defenseone.com/technology/2015/03/militarys-robotic-ghost-ship-passes-critical-test/108352/

Quote
How do you keep track of increasingly stealthy Russian, Chinese and Iranian submarines? If you’re the U.S. military, you build a robotic ghost ship to follow them around the high seas.

In 2010, the Defense Advanced Research Projects Agency, or DARPA, announced that they were building a 132-foot autonomous boat to track quiet, diesel-powered submarines. The program was dubbed Anti-submarine Warfare Continuous Trail Unmanned Vessel, or ACTUV.

To little notice, the system earlier this year passed a critical test, moving much closer to actual deployment and potentially changing not just naval warfare but also the way humans, ships, and robotic systems interact across the world’s waters.

In six weeks of tests along a 35-nautical mile stretch of water off of Mississippi, testers at engineering company Leidos and DARPA put the ACTUV’s systems through 100 different scenarios. The test boat, equipped with nothing more than off-the-shelf radar components, a digital area chart and some proprietary software, was able to complete an autonomous trip without crashing into rocks, shoals, or erratically behaving surface vessels. In future tests, the ship will tail a target boat at 1 kilometer’s distance.

Most importantly, the tests showed that the robot boat could execute a difficult military mission without violating the maritime laws outlined in the Convention on the International Regulations for Preventing Collisions at Sea. They also provided a critical proof-of-concept for machine-learning systems at sea, showing that big robots can, indeed, navigate the open seas along with cruise ships and shrimp boats. The next big challenge for the ACTUV will be the same kind of tests, but with “enemy ships” trying to block or interfere with it. 

The world’s waters could soon be crowded with robot ships that almost never hit land.

Speaking at a National Defense Association Event in Virginia, DARPA program manager Ellison Urban outlined why the Navy needs sub-hunting boat bots. Diesel-electric submarines, with their nearly-noiseless engines, are incredibly difficult to track from afar. They’re also cheap at $200 million to $300 million apiece, making them affordable to the likes of Iran, which claims to have a fleet of 17. “Instead of chasing down these submarines and trying to keep track of them with expensive nuclear powered-submarines, which is the way we do it now, we want to try and build this at significantly reduced cost. It will be able to transit by itself across thousands of kilometers of ocean and it can deploy for months at a time. It can go out, find a diesel-electric submarine and just ping on it,” said Urban.

Leidos conducted the tests on a 42-foot surrogate boat while they finish construction of the ACTUV prototype vessel, the Sea Hunter, which is expected to launch this fall.

Offline seruriermarshal

  • CLEARANCE: Top Secret
  • ***
  • Posts: 833
Re: USN/DARPA ACTUV program
« Reply #21 on: February 15, 2016, 05:35:27 pm »
new pic

 ;D

Offline sferrin

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 10622
Re: USN/DARPA ACTUV program
« Reply #22 on: February 15, 2016, 05:49:45 pm »
Of course with it being unmanned and undefended it would be child's play for a Chinese "fishing boat" to ram it.
"DARPA Hard"  It ain't what it use to be.

Offline Moose

  • CLEARANCE: Top Secret
  • ***
  • Posts: 795
Re: USN/DARPA ACTUV program
« Reply #23 on: February 15, 2016, 11:40:23 pm »
It's faster than most fishing boats I know. And if the Sub that ACTUV is hounding is able to call a fishing boat it's just giving the rest of the Navy something else to track.

Offline covert_shores

  • CLEARANCE: Top Secret
  • ***
  • Posts: 627
  • Research + illustration
    • COVERT SHORES
Re: USN/DARPA ACTUV program
« Reply #24 on: February 16, 2016, 09:36:31 am »
In peacetime, being unmanned is a disadvantage. If the submarine where to sink it then the other side would hardly start a war. Barely an international incident.

I still like the noise maker idea. Drop devices onto the submarine which make a huge noise.
COVERT SHORES: www.hisutton.com

Offline TomS

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 2641
Re: USN/DARPA ACTUV program
« Reply #25 on: February 16, 2016, 10:06:45 am »
In peacetime, being unmanned is a disadvantage. If the submarine where to sink it then the other side would hardly start a war. Barely an international incident.

I still like the noise maker idea. Drop devices onto the submarine which make a huge noise.

Actually attaching something to another nation's submarine in peacetime would be perceived as an attack, and thus very bad.  Just tracking that sub is a lot less alarming. 

Offline seruriermarshal

  • CLEARANCE: Top Secret
  • ***
  • Posts: 833
Re: USN/DARPA ACTUV program
« Reply #26 on: February 16, 2016, 04:31:36 pm »
More ACTUV pics

 ;D

Offline covert_shores

  • CLEARANCE: Top Secret
  • ***
  • Posts: 627
  • Research + illustration
    • COVERT SHORES
Re: USN/DARPA ACTUV program
« Reply #27 on: February 16, 2016, 11:23:31 pm »
In peacetime, being unmanned is a disadvantage. If the submarine where to sink it then the other side would hardly start a war. Barely an international incident.

I still like the noise maker idea. Drop devices onto the submarine which make a huge noise.

Actually attaching something to another nation's submarine in peacetime would be perceived as an attack, and thus very bad.  Just tracking that sub is a lot less alarming.
both sides damaged/sunk or stole each other's unmanned waterborne devices during the Cold War without serious international incident. In fact most went unreported. Attaching clangers to subs wouldn't even make the news. It'd be an embarrassment to the receiver. ;)
COVERT SHORES: www.hisutton.com

Offline TomS

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 2641
Re: USN/DARPA ACTUV program
« Reply #28 on: February 17, 2016, 05:23:43 am »
In peacetime, being unmanned is a disadvantage. If the submarine where to sink it then the other side would hardly start a war. Barely an international incident.

I still like the noise maker idea. Drop devices onto the submarine which make a huge noise.

Actually attaching something to another nation's submarine in peacetime would be perceived as an attack, and thus very bad.  Just tracking that sub is a lot less alarming.
both sides damaged/sunk or stole each other's unmanned waterborne devices during the Cold War without serious international incident. In fact most went unreported. Attaching clangers to subs wouldn't even make the news. It'd be an embarrassment to the receiver. ;)

Unmanned stuff, yes, occasionally.  Shooting something active at a manned platform is a different matter.  I'm hard pressed to see how one could tell the difference between a torpedo and a "noisemaker planter" until it actually hit the target sub.

Offline covert_shores

  • CLEARANCE: Top Secret
  • ***
  • Posts: 627
  • Research + illustration
    • COVERT SHORES
Re: USN/DARPA ACTUV program
« Reply #29 on: February 17, 2016, 08:24:13 am »
Yes, umanned stuff like the ACTUV.

Re clangers, yes I dint think that they were guided or self propelled. Just dropped on top of the sub by a ship using active sonar, or aircraft.
COVERT SHORES: www.hisutton.com

Offline bobbymike

  • CLEARANCE: Top Secret
  • ***
  • Posts: 8346
Books are the quietest and most constant of friends; they are the most accessible and wisest of counselors, and the most patient of teachers.

Charles W. Eliot

Offline bring_it_on

  • CLEARANCE: Top Secret
  • ***
  • Posts: 1654
  • I really should change my personal text
Re: USN/DARPA ACTUV program
« Reply #31 on: March 31, 2016, 04:40:05 pm »
Old radar types never die; they just phased array - Unknown

Offline fredymac

  • CLEARANCE: Top Secret
  • ***
  • Posts: 1162
Re: USN/DARPA ACTUV program
« Reply #32 on: April 01, 2016, 08:41:22 am »
Almost looks like CGI except for the people wandering around.  I wonder if it's supposed to keep up with a sub that is moving at full speed.


Offline TomS

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 2641
Re: USN/DARPA ACTUV program
« Reply #33 on: April 04, 2016, 08:42:35 am »
I wonder if it's supposed to keep up with a sub that is moving at full speed.

Probably doesn't need to.  They say it's for tracking quiet diesel subs.   My thinking is that ACTUV needs a speed faster than the average speed of advance of a diesel sub but not as fast as the sub's maximum sprint speed.  If the target sub sprints, the increased noise will allow ACTUV can track it at longer range, so it can afford to fall behind. When the sub slows to recharge batteries, the ACTUV may temporarily lose track on the slow (quiet) sub but the area it needs to search to regain track will be relatively small.

Offline DrRansom

  • CLEARANCE: Secret
  • **
  • Posts: 482
  • I really should change my personal text
Re: USN/DARPA ACTUV program
« Reply #34 on: April 04, 2016, 09:16:19 am »
Something I wonder is how the ACTUV will operate if the foreign nation sends a warship to bump it off the sub's tail.

I could see the Chinese sending their coast guard ships to bump / ram / or generally harass the ACTUV to get it away from the submarine. As the ACTUV is unmanned, it's loss in a hostile action probably won't rise to the level of a critical, war causing, incident.

Offline sferrin

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 10622
Re: USN/DARPA ACTUV program
« Reply #35 on: April 04, 2016, 10:53:10 am »
Something I wonder is how the ACTUV will operate if the foreign nation sends a warship to bump it off the sub's tail.

I could see the Chinese sending their coast guard ships to bump / ram / or generally harass the ACTUV to get it away from the submarine. As the ACTUV is unmanned, it's loss in a hostile action probably won't rise to the level of a critical, war causing, incident.

Hell, we don't even defend our MANNED ships when China tries to ram them.  China will just ram or shoot them and call it a day.  You'd have to publicly state that policy is they're treated liked manned ships, if they're sunk it would be treated as an act of war, and then BACK UP YOUR WORD.
« Last Edit: April 04, 2016, 11:04:14 am by sferrin »
"DARPA Hard"  It ain't what it use to be.

Offline DrRansom

  • CLEARANCE: Secret
  • **
  • Posts: 482
  • I really should change my personal text
Re: USN/DARPA ACTUV program
« Reply #36 on: April 04, 2016, 12:05:39 pm »
Something I wonder is how the ACTUV will operate if the foreign nation sends a warship to bump it off the sub's tail.

I could see the Chinese sending their coast guard ships to bump / ram / or generally harass the ACTUV to get it away from the submarine. As the ACTUV is unmanned, it's loss in a hostile action probably won't rise to the level of a critical, war causing, incident.

Hell, we don't even defend our MANNED ships when China tries to ram them.  China will just ram or shoot them and call it a day.  You'd have to publicly state that policy is they're treated liked manned ships, if they're sunk it would be treated as an act of war, and then BACK UP YOUR WORD.

But treating unmanned vehicles as manned, especially in context of nuclear power competition, is completely untenable. The Chinese wouldn't even need to sink it, just bump it enough that it has to return to a port for repairs.

I can see ACTUV working away from Chinese navy, but it would have to be queued into tracking the sub when the sub has moved beyond the primary patrol lanes of the Chinese Navy.

Offline sferrin

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 10622
Re: USN/DARPA ACTUV program
« Reply #37 on: April 04, 2016, 12:35:28 pm »
But treating unmanned vehicles as manned, especially in context of nuclear power competition, is completely untenable. The Chinese wouldn't even need to sink it, just bump it enough that it has to return to a port for repairs.

Better yet, have a reinforced nose, a 5000lb warhead, and program it to ram the offending ship.  They can hardly cry when they get hung by their own petard.  And no, just because it's a nuclear power does not make it "completely untenable".  Every navy has a right to defend itself against BS behavior. 

I can see ACTUV working away from Chinese navy, but it would have to be queued into tracking the sub when the sub has moved beyond the primary patrol lanes of the Chinese Navy.

Pretty useless then if you can't even use it watch those you need to watch.  The more I think about it the dumber this idea seems.  They wouldn't even have to damage it.  Just board it and sail it home or hook a rope to it and tow it home.  Free goodies!  <picard_facepalm>
« Last Edit: April 04, 2016, 12:40:08 pm by sferrin »
"DARPA Hard"  It ain't what it use to be.

Offline bring_it_on

  • CLEARANCE: Top Secret
  • ***
  • Posts: 1654
  • I really should change my personal text
Re: USN/DARPA ACTUV program
« Reply #38 on: April 04, 2016, 05:37:00 pm »
Old radar types never die; they just phased array - Unknown

Offline Moose

  • CLEARANCE: Top Secret
  • ***
  • Posts: 795
Re: USN/DARPA ACTUV program
« Reply #39 on: April 05, 2016, 10:32:19 am »
They wouldn't even have to damage it.  Just board it and sail it home or hook a rope to it and tow it home.  Free goodies!  <picard_facepalm>
The con is mounted on the prototype for trials purposes, the operational ACTUV won't have a manual helm station that could be seized. As for towing it, establishing a tow on a vessel which is cooperating is hard enough. Lassoing a vessel which is actively maneuvering against you is, well, unlikely.

Offline sferrin

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 10622
Re: USN/DARPA ACTUV program
« Reply #40 on: April 05, 2016, 10:35:13 am »
They wouldn't even have to damage it.  Just board it and sail it home or hook a rope to it and tow it home.  Free goodies!  <picard_facepalm>
The con is mounted on the prototype for trials purposes, the operational ACTUV won't have a manual helm station that could be seized. As for towing it, establishing a tow on a vessel which is cooperating is hard enough. Lassoing a vessel which is actively maneuvering against you is, well, unlikely.

So disable it and tow it.  Shoot it or use a helicopter to land a team on it to disable it.  And unless the thing is outfitted with 360 camera/IIR coverage, complete with real-time control (which can be jammed) it won't be actively maneuvering against anybody. 
"DARPA Hard"  It ain't what it use to be.

Offline TomS

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 2641
Re: USN/DARPA ACTUV program
« Reply #41 on: April 05, 2016, 10:50:34 am »
Shooting at another government's assets, even unmanned ones, is a hostile action.  In wartime or near wartime, it could happen, but PLAN surface ships won't be loose in mid-ocean without their own shadows in such an event.  In peacetime, it would be a huge provocation. 

As for maneuvering and boarding, it's a safe bet that the ACTUV will maneuver to avoid being boarded by another surface ship, for legal reasons.   It has to do so to observe the International Regulations for Preventing Collisions at Sea (COLREGS). A boarding attempt would look exactly like a potential collision as far as the vessel's navigational system is concerned. If it can't avoid collisions autonomously, it can't be let loose on the high seas. Even if it's technically the stand-on vessel, the vessel has to maneuver in extremis to avoid collisions.

Offline marauder2048

  • CLEARANCE: Top Secret
  • ***
  • Posts: 2010
  • "I should really just relax"
Re: USN/DARPA ACTUV program
« Reply #42 on: April 05, 2016, 11:56:53 am »
A smaller version delivered (and recovered) by amphibian (say US-2) or a Hybrid Airship might solve some of the kidnapping problems. Though I suspect a smaller version couldn't meet ACTUV's 30-day  loiter followed by a 30-day maximum energy trail req.

From a RAND study (attached):

Quote
Vulnerability of the USV.  It is unclear how the USV could  defend itself and continue to operate in the face of possible air
strikes, deliberate ramming by another vessel, electronic warfare,  or other forms of attack. DARPA has countered this criticism
with the observation that the USV could be “the canary in the  coal mine” that warns of impending hostilities

Emphasis in the original.

Offline DrRansom

  • CLEARANCE: Secret
  • **
  • Posts: 482
  • I really should change my personal text
Re: USN/DARPA ACTUV program
« Reply #43 on: April 05, 2016, 01:06:53 pm »
The issue I see with treating the ACTUV as a 'canary in the coalmine' is that I suspect China and Russia will treat bumping the ACTUV off a sub as a routine maneuver, akin to the US suppressing any submarines near a SSBN base.

The ship could be disabled via ramming, no need to start shooting.-

Offline NeilChapman

  • CLEARANCE: Top Secret
  • ***
  • Posts: 838
  • Interested 3rd party
Re: USN/DARPA ACTUV program
« Reply #44 on: April 05, 2016, 01:17:21 pm »
Carbon fiber.  Pretty shallow draft.  Nice low, rounded and streamlined deck to minimize windage.  U-shaped aft hull to reduce pitching.  Very slippery.  Probably just a itty-bitty blip on radar.  Popular Mechanics reported speed trials at 27 kts.  Shouldn't need much for engines to run around at those speeds. 

Would it be worth fitting an autonomous celestial navigation system should satellite GPS not be available?

I had the impression that the sonar extended below the hull.  This picture doesn't show it.  Perhaps it mechanically retracts?

Did I understand correctly that it will be deployed for 60-90 days?

http://dau.dodlive.mil/2015/12/28/maritime-autonomy-reducing-the-risk-in-a-high-risk-program/

I think it's a great idea.  We'll learn quite a lot during it's two years of sea trials.

Offline sferrin

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 10622
Re: USN/DARPA ACTUV program
« Reply #45 on: April 05, 2016, 03:41:38 pm »
Shooting at another government's assets, even unmanned ones, is a hostile action. 

So ram it.  Hell, China has no problem attempting to ram SURTASS ships or cruisers, this will be a walk in the park with no repercussions. 
"DARPA Hard"  It ain't what it use to be.

Offline NeilChapman

  • CLEARANCE: Top Secret
  • ***
  • Posts: 838
  • Interested 3rd party
Re: USN/DARPA ACTUV program
« Reply #46 on: April 05, 2016, 06:36:41 pm »
http://repository.jmls.edu/cgi/viewcontent.cgi?article=1785&context=jitpl

Interesting paper that discusses autonomy of military robots - includes mention of ACTUV and other programs

Offline TomS

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 2641
Re: USN/DARPA ACTUV program
« Reply #47 on: April 06, 2016, 05:55:08 am »
Shooting at another government's assets, even unmanned ones, is a hostile action. 

So ram it.  Hell, China has no problem attempting to ram SURTASS ships or cruisers, this will be a walk in the park with no repercussions.

On rare occasions, and it doesn't seem to stop those ships from actually accomplishing their missions.

Offline sferrin

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 10622
Re: USN/DARPA ACTUV program
« Reply #48 on: April 06, 2016, 06:26:10 am »
Shooting at another government's assets, even unmanned ones, is a hostile action. 

So ram it.  Hell, China has no problem attempting to ram SURTASS ships or cruisers, this will be a walk in the park with no repercussions.

On rare occasions, and it doesn't seem to stop those ships from actually accomplishing their missions.

But they're manned and could fight back.  Seriously, if they have one of these trawling around the South China Sea, and China complains (and they will but they'll cite "safety concerns" and "escalation") we'll either, 1. leave, or 2. get rammed by China and then leave.  Just remember you heard it here first.  ;)
"DARPA Hard"  It ain't what it use to be.

Offline phil gollin

  • CLEARANCE: Secret
  • **
  • Posts: 191
Re: USN/DARPA ACTUV program
« Reply #49 on: April 11, 2016, 04:15:58 am »
.

I do not believe that this is an ASW ship - it doesn't have the size for proper silencing, and not enough power or space for decent sensors.

HOWEVER, it would seem to be an excellent design for coastal warfare - spy drone, nuisance drone, ELINT drone ?   It seems suitable for all.   My favourite would be to drop off sensors outside enemy ports.

Those outriggers should give good stability in rough coastal waters.

Offline TomS

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 2641
Re: USN/DARPA ACTUV program
« Reply #50 on: April 11, 2016, 05:28:51 am »
And yet, every description is consistent that it is an ASW asset.  And they're pretty clear on how it functions -- it's cued by "wide area" assets (sea-bottom sensors, MPA, towed arrays on other ships, etc.), then uses a combination of MF and HF sonar to detect and classify the target.  That external cueing is the key -- its own sensors don't have to find targets at very long range, just hold the contact once it gets close.

http://defense-update.com/20130101_saic_develops_an_unmanned_submarine_hunter.html#.U9rbUsJ0wdV

Offline Volkodav

  • CLEARANCE: Confidential
  • *
  • Posts: 111
  • I really should change my personal text
Re: USN/DARPA ACTUV program
« Reply #51 on: April 12, 2016, 08:11:03 am »
I suppose the answer to ramming is to rig them with a warhead so at the push of a button they could be armed, perhaps even with a strobe light, warning siren and a pre-recorded message, "back off or boom!"  During hostilities they could be programed to actively ram attacking vessels and send to the bottom, an expensive guided weapon I know but if you are going to lose it anyway why not?

Offline TomS

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 2641
Re: USN/DARPA ACTUV program
« Reply #52 on: April 12, 2016, 08:19:07 am »
I'm reading more about the CONOPS for these units, and it appears that they won't be operating on the high seas alone with no other fleet units around.  They'll be in direct contact with other ships, so if someone comes out to menace them, the rest of the fleet will be there to support. 

Offline bring_it_on

  • CLEARANCE: Top Secret
  • ***
  • Posts: 1654
  • I really should change my personal text
Re: USN/DARPA ACTUV program
« Reply #53 on: April 12, 2016, 03:31:31 pm »
Old radar types never die; they just phased array - Unknown

Offline fredymac

  • CLEARANCE: Top Secret
  • ***
  • Posts: 1162
Re: USN/DARPA ACTUV program
« Reply #54 on: April 14, 2016, 08:54:34 am »
You would think they would pre-cut the Christening bottles so they would shatter easy.  Until a Russian billionaire builds a lookalike yacht it won't be cool.


Offline Moose

  • CLEARANCE: Top Secret
  • ***
  • Posts: 795
Re: USN/DARPA ACTUV program
« Reply #55 on: April 14, 2016, 01:12:28 pm »
Champagne is under pressure, pre-cutting the bottles would risk the bottle bursting well before it gets to the ship's prow. Besides, watching the sponsor take multiple swings at it is part of the tradition by now.

Offline bobbymike

  • CLEARANCE: Top Secret
  • ***
  • Posts: 8346
Books are the quietest and most constant of friends; they are the most accessible and wisest of counselors, and the most patient of teachers.

Charles W. Eliot

Offline bring_it_on

  • CLEARANCE: Top Secret
  • ***
  • Posts: 1654
  • I really should change my personal text
Re: USN/DARPA ACTUV program
« Reply #57 on: October 28, 2016, 11:34:37 am »
DARPA's Sea Hunter to begin COLREGS testing in January 2017

Commencing in January 2017 DARPA will begin collecting data on how its Anti-Submarine Warfare (ASW) Continuous Trail Unmanned Vessel (ACTUV) conducts fully autonomous operations in preparation for international certification.Additionally, ASW track and trail testing of ACTUV could be delayed beyond fiscal year (FY) 2018.

ACTUV, now referred to as Sea Hunter, will begin the lengthy International Regulations for Preventing Collisions at Sea (COLREGS) certification process, an important step in determining whether the large unmanned surface vessel (USV) is a viable solution for conducting extended ASW missions.

COLREGS is a "threshold capability that is important for any large USV that will be operated at long distances from a human operator", explained Scott Littlefield, programme manager for DARPA's ACTUV programme.

"It is the rules of the road at sea," Littlefield told attendees at the annual AUVSI Unmanned Systems Defense maritime day, held on 24 October in Arlington, Virginia.

Sea Hunter is a 132-ft trimaran built by Leidos. The vessel was initially designed to autonomously track submarines for periods of weeks to months.

DARPA did not want ACTUV to be a remote-controlled vessel, particularly because of the reliability, latency and bandwidth issues associated with satellite communications, which would be used to control the vessel.

"You can't make that your achilles heel," Littlefield said. "You need something where if you lose communications with a remote operator it will continue to operate in a safe manner and complete the mission." For that capability, COLREGS is an enabler, he added.

COLREGS is also key to the concept of low manning because the platform can now go to Sparse Supervisory Control where one or two watchstanders could keep track of a fairly large number of Sea Hunters, Littlefield said.

"Because when they are out at sea in normal circumstances they are not required to have continuous interaction with an operator," he said.

Because COLREGS is such an important part of the Sea Hunter programme, DARPA didn't want to wait until they had a full scale prototype on the water to begin working on the capability, Littlefield noted.

DARPA developed algorithms for Sea Hunter autonomous operations and tested them in a system integration lab before very quickly taking them out to sea on a surrogate vessel, which has the same sensor, software, and computing plant as the full-scale Sea Hunter prototype.

"By doing that we were able to find out pretty quickly whether our COLREGS algorithms were working or not," Littlefield said. "[We are] at a point now that we feel comfortable that COLREGS is a solvable problem."

To achieve COLREGS there are a few things that have to be done, Littlefield noted.

Developers need to create a comprehensive world model of potential contacts, "because you can't avoid a contact you did not see", he said.

"It is not just about contacts but about classifying those contacts. For example, in COREGS, it matters whether the other vessel is a powered vessel or sailboat," Littlefield added. "So we are investing in some autonomous approaches for doing vessel classification and doing EO/IR [electro optical infrared] without having a human in the loop."

Another critical piece that applies to the long-term transition to this technology is developing a test and evaluation strategy.

Littlefield noted that Sea Hunter will never be able to conduct enough actual at-sea test hours to develop the statistical confidence in its ability to operate autonomously as effectively as a human operator.

"How much testing, how much evidence do you need [before you] say, OK it is good enough, we are ready to certify it is safe for operation," Littlefield said. "That is a hard problem. The way we will get to that is through some combination of modelling and simulation and actual at-sea testing."

Modelling and simulation can provide potentially millions of virtual hours at sea but researchers will still need to do the actual at-sea testing as part of the validation process.

"We are working through that right now. That will be a continuing challenge as this programme goes forward and becomes a navy programme," Littlefield said.

On a good day at sea DARPA can maybe set up four COLREGS scenarios, Littlefield noted. So in a week he estimates researchers can get 16 data points at a cost of USD10,000 per data point.

"So if you want to get statistics on hundreds of thousands of runs we can't get there from here with at-sea testing," Littlefield said.

DARPA has worked through a lot of basic testing on the full scale prototype.

Beginning in January, DARPA will begin collecting a lot more COLREGS data as it takes Sea Hunter out to sea for a week or two at a time, for almost every month through 2017, Littlefield said.

"We have a robust programme in place to continue to improve the COLREGS capability," he said.

FY 2017 is the last year of DARPA funding for Sea Hunter. Sometime during the fiscal year Littlefield will hand the keys to the US Navy's Office of Naval Research (ONR), which will take over the testing phase through FY 2018, a period that includes COLREGS, EO/IR sensors, and a few additional payloads, including for mine countermeasures (MCM) and anti-submarine warfare (ASW).

ASW testing for Sea Hunter will come under the auspices of ONR. Littlefield noted that testing may not complete by the end of FY 2018 due to schedule and funding issues.

"The flipside is, some of the payloads the navy is interested in are not ASW, so we have accelerated some of those and [are] putting ASW off until the navy gets around to it," he said. "Additional missions and payloads are already funded and there are a lot of other things we could do with this platform."While it will be up to the USN to decide whether or not to transition Sea Hunter into the fleet, there are some things Littlefield noted as important for the navy to get started on fairly soon.

For example, developing standards and policies for unmanned operations to provide a body of evidence to enable Naval Sea Systems Command or another command to declare that Sea Hunter is certified to go unmanned.

Another area is command and control (C2) of Sea Hunter. If the USV is launched and recovered from a vessel, the commanding officer of that ship would oversee the platform. But Sea Hunter will likely deploy more often from pier side; and while it might operate with a battlegroup it could also work independently. The navy will have to determine in those instances who Sea Hunter would report to and work for.

The only payload DARPA has demonstrated to date with Sea Hunter is a prototype of a low-cost, elevated sensor mast developed through the Towed Airborne Lift of Naval Systems (TALONS) research effort. TALONS is a towed parafoil designed to provide an ISR capability or communications relay payload at up to 1,500 ft above a ship. At that altitude, TALONS would extend a ship's view to about 40 miles.
Old radar types never die; they just phased array - Unknown

Offline marauder2048

  • CLEARANCE: Top Secret
  • ***
  • Posts: 2010
  • "I should really just relax"
Re: USN/DARPA ACTUV program
« Reply #58 on: October 28, 2016, 11:49:03 am »
Quote
TALONS is a towed parafoil designed to provide an ISR capability or communications relay payload at up to 1,500 ft above a ship.
 At that altitude, TALONS would extend a ship's view to about 40 miles.

40 (nautical) miles is the optical horizon; the RF horizon would be longer. TALONS really should be standard equipment on all surface ships.

Offline Moose

  • CLEARANCE: Top Secret
  • ***
  • Posts: 795
Re: USN/DARPA ACTUV program
« Reply #59 on: October 28, 2016, 06:09:12 pm »
Quote
TALONS is a towed parafoil designed to provide an ISR capability or communications relay payload at up to 1,500 ft above a ship.
 At that altitude, TALONS would extend a ship's view to about 40 miles.

40 (nautical) miles is the optical horizon; the RF horizon would be longer. TALONS really should be standard equipment on all surface ships.
Likely such equipment will be, early days yet

Offline TomS

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 2641
Re: USN/DARPA ACTUV program
« Reply #60 on: October 28, 2016, 06:39:19 pm »
It's not without limitations.  Flying something like TALONS js going to limit ship maneuverability similarly to a towed sonar.  And obviously play hell with helicopter operations.  So it's likely to end up on specialized platforms, not every ship.

Offline RLBH

  • CLEARANCE: Secret
  • **
  • Posts: 168
Re: USN/DARPA ACTUV program
« Reply #61 on: October 31, 2016, 02:55:38 am »
It's not without limitations.  Flying something like TALONS js going to limit ship maneuverability similarly to a towed sonar.  And obviously play hell with helicopter operations.  So it's likely to end up on specialized platforms, not every ship.
Depending on ship impact, I can see it being capable of being fitted to most ships - dedicated aviation ships would have issues, for example - and deployed as dictated by the tactical situation. Loads would be less than for a TAS, dictated simply by the fluid in which it operates, so it's more likely to be a question of available space than manoeuvrability (though that will be an issue).

Offline moonbeamsts

  • CLEARANCE: Confidential
  • *
  • Posts: 37
Re: USN/DARPA ACTUV program
« Reply #62 on: October 31, 2016, 04:09:05 pm »
For ship defence any additional warning time allows the best option to employ weapon's and tactics,IE what could
f the USS Stark team could of done with extra 30 seconds?

Offline bobbymike

  • CLEARANCE: Top Secret
  • ***
  • Posts: 8346
Books are the quietest and most constant of friends; they are the most accessible and wisest of counselors, and the most patient of teachers.

Charles W. Eliot

Offline sferrin

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 10622
Re: USN/DARPA ACTUV program
« Reply #64 on: November 20, 2016, 05:52:46 pm »
For ship defence any additional warning time allows the best option to employ weapon's and tactics,IE what could
f the USS Stark team could of done with extra 30 seconds?


Turned on the Phalanx? (Though given that Murphy seems to be the Patron Saint of the USN it probably takes 20 minutes to warm up.)
"DARPA Hard"  It ain't what it use to be.

Offline TomS

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 2641
Re: USN/DARPA ACTUV program
« Reply #65 on: November 20, 2016, 06:47:30 pm »
Phalanx was on, just in manual mode.  What needed to happen was for them to actually detect a launch, which they did not (neither did he AWACS nearby).  If they'd known that missiles were in flight, CIWS would probably have been put in auto and they would have had a chance.  Arming the SRBOC would have also helped, but again only if they knew to deploy it.

Offline sferrin

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 10622
Re: USN/DARPA ACTUV program
« Reply #66 on: November 20, 2016, 07:31:17 pm »
Phalanx was on, just in manual mode.  What needed to happen was for them to actually detect a launch, which they did not (neither did he AWACS nearby).  If they'd known that missiles were in flight, CIWS would probably have been put in auto and they would have had a chance.  Arming the SRBOC would have also helped, but again only if they knew to deploy it.

Any idea why AWACS didn't detect the incoming missile?  (Or why the frigate's own radar didn't?)
"DARPA Hard"  It ain't what it use to be.

Offline sferrin

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 10622
Re: USN/DARPA ACTUV program
« Reply #67 on: January 31, 2018, 01:12:19 pm »
"DARPA Hard"  It ain't what it use to be.

Offline fredymac

  • CLEARANCE: Top Secret
  • ***
  • Posts: 1162
Re: USN/DARPA ACTUV program
« Reply #68 on: January 31, 2018, 02:27:31 pm »

Offline bobbymike

  • CLEARANCE: Top Secret
  • ***
  • Posts: 8346
Books are the quietest and most constant of friends; they are the most accessible and wisest of counselors, and the most patient of teachers.

Charles W. Eliot