Register here

Author Topic: 1989 Navy/USAF Long Range Conventional Standoff Weapon (LRCSW)  (Read 12786 times)

Offline flateric

  • Deputy Administrator
  • CLEARANCE: Top Secret
  • ****
  • Posts: 8659
1989 Navy/USAF Long Range Conventional Standoff Weapon (LRCSW)
« on: December 02, 2006, 12:55:05 pm »
Contenders
1).Boeing
2). GD
3).Texas Instruments
4).?
-----------------------------
Boeing LRCSW
From AIAA-92-0082

"A basic objective of the study was to develop a missile system
design concept that would meet the mission requirements
shown in figure 1. The missile program was the Long Range
Conventional Standoff Weapon (LRCSW) contract. LRCSW
system requirements were defined several years before the
successful employment of conventionally armed Tomahawk
BGM-109 cruise missiles during Operatlon Desert Storm In
1991. All of the Tomahawk cruise missiles were launched
from surface shlps or submarines. However, the LRCSW
system was envisioned as a missile. or family of missiles, that
could be launched from a variety of ships, submarines, Navy
aircraft , and Air Force aircraft.
« Last Edit: November 11, 2013, 02:18:11 am by flateric »
"There are many disbelievers in
stealth, more than a few of them truly technically ignorant and proud of it." Sherm Mullin, Skunk Works

Offline GTX

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 2584
  • All hail the God of Frustration!!!
    • Beyond The Sprues
Re: 1989 Navy/USAF Long Range Conventional Standoff Weapon (LRCSW)
« Reply #1 on: May 18, 2007, 01:51:16 pm »
Hi folks,

If you go to http://www.air-and-space.com/20020624%20China%20Lake%20Armament%20and%20Technology%20Museum.htm and look about half way down the page you will see a couple of photos of a Tomahawk style cruise missile with Contra-rotating propellers.  Does anyone have any more information on this.  I remember reading some proposals a while ago for such a set up, but didn't think it had made it to the hardware stage.

Regards,

Greg
« Last Edit: May 06, 2008, 05:25:43 pm by flateric »

Offline flateric

  • Deputy Administrator
  • CLEARANCE: Top Secret
  • ****
  • Posts: 8659
« Last Edit: May 07, 2008, 12:58:36 am by flateric »
"There are many disbelievers in
stealth, more than a few of them truly technically ignorant and proud of it." Sherm Mullin, Skunk Works

Offline GTX

  • Senior Member
  • CLEARANCE: Top Secret
  • **
  • Posts: 2584
  • All hail the God of Frustration!!!
    • Beyond The Sprues
Re: 1989 Navy/USAF Long Range Conventional Standoff Weapon (LRCSW)
« Reply #3 on: May 06, 2008, 08:18:10 pm »
Interesting, I wonder if this is related to the missile I originally asked about here?

Regards,

Greg

Offline Orionblamblam

  • Secret Projects Guru
  • Top Contributor
  • CLEARANCE: Top Secret
  • ***
  • Posts: 7169
    • Aerospace Projects Review
Re: 1989 Navy/USAF Long Range Conventional Standoff Weapon (LRCSW)
« Reply #4 on: May 06, 2008, 10:13:58 pm »
Few things yell louder on radar than propfans.
Aerospace Projects Review


And so the endless circle of life comes to an end, meaningless and grim. Why did they live, and why did they die? No reason. Two hundred million years of evolution snuffed out, for in the end Nature is horrific and teaches us nothing

Offline flateric

  • Deputy Administrator
  • CLEARANCE: Top Secret
  • ****
  • Posts: 8659
Re: 1989 Navy/USAF Long Range Conventional Standoff Weapon (LRCSW)
« Reply #5 on: May 07, 2008, 12:51:08 am »
Greg, these looks like NASA Lewis/McDonnell Douglas Astronautics/Sverdrup studies on CRP (Counter-Rotating Propfans) use for cruise missiles from 1989. I remember seeing a dozen of papers on that at NTRS.

Allison Gas Turbine Division has its own ideas in the same timeframe, or it was a common program, not sure.
« Last Edit: May 07, 2008, 01:18:37 am by flateric »
"There are many disbelievers in
stealth, more than a few of them truly technically ignorant and proud of it." Sherm Mullin, Skunk Works

Offline flateric

  • Deputy Administrator
  • CLEARANCE: Top Secret
  • ****
  • Posts: 8659
Re: 1989 Navy/USAF Long Range Conventional Standoff Weapon (LRCSW)
« Reply #6 on: May 07, 2008, 01:31:18 am »
Gotcha -

The long-range conventional standoff weapon (LRCSW) program was established as a joint U.S. Navy/Air Force program to develop an advanced, long-range cruise missile powered by a propfan engine. As a part of this program, a joint Navy/Air Force/NASA Propfan Missile Interactions Project was initiated to determine the effects of a propfan engine on missile aerodynamics in a wind tunnel test.

http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19920016510_1992016510.pdf
http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19920013948_1992013948.pdf
http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19930009686_1993009686.pdf

Familiar WT model, yeah?
"There are many disbelievers in
stealth, more than a few of them truly technically ignorant and proud of it." Sherm Mullin, Skunk Works

Offline flateric

  • Deputy Administrator
  • CLEARANCE: Top Secret
  • ****
  • Posts: 8659
Re: 1989 Navy/USAF Long Range Conventional Standoff Weapon (LRCSW)
« Reply #7 on: May 07, 2008, 05:01:17 am »
Few things yell louder on radar than propfans.

New 'stealthy' Bell QTR I guess=)
"There are many disbelievers in
stealth, more than a few of them truly technically ignorant and proud of it." Sherm Mullin, Skunk Works

Offline flateric

  • Deputy Administrator
  • CLEARANCE: Top Secret
  • ****
  • Posts: 8659
Re: 1989 Navy/USAF Long Range Conventional Standoff Weapon (LRCSW)
« Reply #8 on: November 11, 2013, 02:10:15 am »
Texas Instruments entry
« Last Edit: November 11, 2013, 02:16:44 am by flateric »
"There are many disbelievers in
stealth, more than a few of them truly technically ignorant and proud of it." Sherm Mullin, Skunk Works

Offline flateric

  • Deputy Administrator
  • CLEARANCE: Top Secret
  • ****
  • Posts: 8659
Re: 1989 Navy/USAF Long Range Conventional Standoff Weapon (LRCSW)
« Reply #9 on: November 11, 2013, 02:20:22 am »
GD entry (Tomahawk at the backstage)
"There are many disbelievers in
stealth, more than a few of them truly technically ignorant and proud of it." Sherm Mullin, Skunk Works

Offline flateric

  • Deputy Administrator
  • CLEARANCE: Top Secret
  • ****
  • Posts: 8659
Re: 1989 Navy/USAF Long Range Conventional Standoff Weapon (LRCSW)
« Reply #10 on: November 11, 2013, 12:28:20 pm »
4). McDonnell Douglas
5). Martin Marietta
"There are many disbelievers in
stealth, more than a few of them truly technically ignorant and proud of it." Sherm Mullin, Skunk Works

Offline markfward

  • CLEARANCE: Restricted
  • Posts: 17
Re: 1989 Navy/USAF Long Range Conventional Standoff Weapon (LRCSW)
« Reply #11 on: September 27, 2015, 12:36:57 pm »
Hi folks,

If you go to http://www.air-and-space.com/20020624%20China%20Lake%20Armament%20and%20Technology%20Museum.htm and look about half way down the page you will see a couple of photos of a Tomahawk style cruise missile with Contra-rotating propellers.  Does anyone have any more information on this.  I remember reading some proposals a while ago for such a set up, but didn't think it had made it to the hardware stage.

Regards,

Greg


Take a look at the pitch of the blades. Those propellers do not counter-rotate.


My understanding is this test article stems from a Navy program to create a very low observable long range cruise missile -- LO to the extent of active wake management. IIRC the propeller pitch and speed were variable between the two rotors.


And re: the RCS of propfans, not all prop materials are made equal...


I do not know what overlap this program had with the LRCSW.


Cheers!
« Last Edit: September 27, 2015, 12:38:54 pm by markfward »

Offline flateric

  • Deputy Administrator
  • CLEARANCE: Top Secret
  • ****
  • Posts: 8659
Re: 1989 Navy/USAF Long Range Conventional Standoff Weapon (LRCSW)
« Reply #12 on: March 07, 2019, 05:05:32 am »
...
"There are many disbelievers in
stealth, more than a few of them truly technically ignorant and proud of it." Sherm Mullin, Skunk Works

Offline JAZZ

  • Senior Member
  • CLEARANCE: Secret
  • **
  • Posts: 287
Re: 1989 Navy/USAF Long Range Conventional Standoff Weapon (LRCSW)
« Reply #13 on: March 09, 2019, 03:04:18 am »
LRCSW entries