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Tactical Tomahawk

GJ33

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Why use a long distance / range Tomahawk if your tgt must be in radar range?
Maybe in range of a Stealth UAV?
 

fredymac

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I'm sure there is some official explanation but just consider all the submarines equipped with Tomahawks and being able to lob them at targets based on 3rd party GPS information and then having terminal guidance through something like an E-2D or Triton which could still be 100 miles away from the target.
Putting a radio onboard with some software to update the GPS target location is also probably a lot cheaper than installing a full up seeker head which would be wasted on fixed targets. It just makes the Tomahawk more versatile at a relatively low price and allows a host of existing assets to join in the game should they be called.
Or maybe they're just playing around to see if it would work. Bureaucrats are inscrutable like that.
 

fredymac

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It took a little hunting but I found a video of a JDAM drop on a decommisioned navy ship. I think (not sure) that this was the same principle: the JDAM GPS coordinates were updated in realtime. I think this test was part of the air-sea battle doctrine leveraging Air Force assets for naval strikes. It is the same principle of taking existing inventory and making it useful for a different mission at a relatively low cost.

https://www.youtube.com/watch?v=AcIi71kJFGI
 

stealthflanker

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Any possibility of "resurrecting" the TASM ? By giving radar seeker to tactical tomahawk.
 

TomS

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Raytheon is working on it:

http://www.defensenews.com/story/defense/show-daily/surface-navy-assn/2015/01/13/raytheon-working-on-tomahawk-with-active-seeker/21718359/

But there's probably not a lot of future there. The Navy has already picked a JASSM derivative for its interim long range antiship missile.

http://www.defenseindustrydaily.com/block-iv-xgm-109-tomahawk-chopped-07423/
 

Jemiba

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fredymac

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Jemiba said:
Just a question: On this video
https://www.youtube.com/watch?v=9TcFmqVkUuo ,

at 15 to 16 seconds a secondary explosion can be seen. What could be the
cause on what probably is just an empty hulk ?

In the first video you can hear voices talking about multiple "units". I think they were "talking around" using the word "bomb". I would guess getting hit by a 2000lb JDAM would be similar to taking a 16 inch battleship shell. The picture below is from the Naval Yard museum in Washington and shows the result of a 16 inch shell impacting a 26 inch thick steel armor plate. That's just the penetration energy of a hardened steel tip at the front end of a 2700 pound projectile. I'm not sure how the terminal velocity compares to an air drop from 20,000 ft.
 

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Bill Walker

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I think the first white cloud is dust, paint chips, and maybe water raised by the kinetic energy of the impact. The orange flash immediately after this is the warhead on the bomb (or whatever) detonating.
 

sferrin

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fredymac said:
In the first video you can hear voices talking about multiple "units". I think they were "talking around" using the word "bomb". I would guess getting hit by a 2000lb JDAM would be similar to taking a 16 inch battleship shell. The picture below is from the Naval Yard museum in Washington and shows the result of a 16 inch shell impacting a 26 inch thick steel armor plate. That's just the penetration energy of a hardened steel tip at the front end of a 2700 pound projectile. I'm not sure how the terminal velocity compares to an air drop from 20,000 ft.
I'd be amazed if even a BLU-109 could do that.
 

Jemiba

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fredymac said:
In the first video you can hear voices talking about multiple "units". I think they were "talking around" using the word "bomb". ...
Bill Walker said:
I think the first white cloud is dust, paint chips, and maybe water raised by the kinetic energy of the impact. The orange flash immediately after this is the warhead on the bomb (or whatever) detonating.
That would/could mean, the first cloud and the first flash (there is one, I think) stems from the missile itself,
its remaining fuel probably exploding on impact and then the warhead explodes considerable time later and
at a quite different location from the impact. Looks, as the ship was hit from the bow end then.
 

AN/AWW-14(V)

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The TACTOM Modernization:

  • Recertification, Navigation Communication Modernization upgrades (NAVCOMMs), designation Block V, for all
  • Maritime Strike Tomahawk (MST), designation Block Va
  • Military Code (M-CODE), for all
  • Joint Multiple Effects Warhead System (JMEWS), designation Block Vb
Initial procurement of TACTOM, as well as modification funds executed in FY 2020 and prior. The TACTOM NAVCOMMs upgrades consist of the Integrated Single Box Solution (ISBS) radio, two new antennas and associated cabling, a new mid-body cover, and changes to the aft-body structure and aft-body cover. The ISBS radio is replacing the existing Satellite Data Link Terminal (SDLT); and the new Ultra High Frequency (UHF) antenna is replacing the existing UHF antenna.

A second antenna is beingadded to the missile to accommodate a second frequency band.

The changes to the missile are driven by the obsolescence of the SDLT hardware and the obsolescence of the UHF Demand Assigned Multiple Access (DAMA) communications infrastructure that is being phased out of service.

As part of the Recertification (ACAT II) program, all Block IV TACTOMs will be updated to the modernized Block V configuration with the incorporation of NAVCOMMs kits continuing in FY 2021.

The TACTOM service life for RGM109E and UGM109E Block IV/V Tomahawk cruise missiles is 30 years with a 15 year deployment and recertification cycle. The TACTOM Recertification program includes FY2021 funding associated with the recertification of BLK IV TACTOM Missiles. The yearly recertification profile will limit the missile backlog within the Fleet due to the expiration of life limiting components. There certification contract will have three months of production lead-time prior to missile induction. Recertification activity includes the costs associated with the Raytheon labor, vendor recertification of specific components (i.e. mechanical and electrical components), recertification of the MK 45 submarine capsule, missile consumables, fuze recertification and fuel. Recertification is planned to occur concurrently withinstallation of NAVCOMMs Modernization Kits, which will replace the existing SDLT radio and antenna.

MST is a Rapid Deployment Capability which includes seeker kit hardware,assemblies/subassemblies, packaging and storage. Seeker kit hardware procurement includes the sensors (not one!), nosecone, ULTRA processor, cooling pump and plumbing, bulkhead, power and signal harnesses, power supply, plumbing and electrical chase insulators, telemetry unit, wiring, magnet generator, and alternator voltage control converter. Includes modifying existing missile infrastructure to accept/install seeker kit components and assemblies into a modernized Block V missile.

M-CODE is an ACAT IV, next generation, modernized Global Positioning System (GPS) capability. TACTOM M-CODE kits consist of new Anti-Jam GPS Receiver (AGR) hardware/software and installation of the upgrade kit into TACTOM Block V AURs.

JMEWS is an ACAT III, new warhead for the Block V Tomahawk Cruise Missile. JMEWS will greatly expand the land target set that the Tomahawk missile is capable of defeating, by combining the blast andfragmentation capabilities of the current warhead with a new penetration capability and improved mission planning. JMEWS will also be compliant with Insensitive Munitions requirements which improve safetyduring transportation and storage on land and aboard ships and submarines. JMEWS program includes upgrades to the AUR missile, and requires upgrades to the Tactical Tomahawk Weapons Control System, and Theatre Mission Planning Center programs.

https://www.secnav.navy.mil/fmc/fmb/Documents/21pres/WPN_Book.pdf
 
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