Boeing's JDRADM concept has unique TVC

[SpudmanWP]

I was looking around for any new JDRADM info and I came across Boeing's JDRADM backgrounder document.

http://www.boeing.com/bds/mediakit/2010/afa/pdf/bkgd_jdradm_%200210.pdf

Not much new here until I zoomed into the picture. It is there that I noticed a small TVC jet exiting from the side of the motor.

 

[Trident]

Well spotted! As is so often the case however, this solution is not entirely new:

http://www.mbda-systems.com/mbda/site/docs_wsw/RUB_285/thecommonantiairmissilefamily(camm)naval2.jpg

 

[SpudmanWP]

The Boeing solution is different than the CAMM design.

The CAMM design is a cold-launched missile that then uses dedicated side-thrusting maneuver rockets to get it pointed in the right direction before the main motor ignites.

The Boeing solution seems to indicate a systems that bleeds thrust from the main chamber while the main motor is burning.

That is what I meant by unique.

Here is a video on CAMM showing the two different motors and their sequence. The last part of the video shows, what I think, is an earlier version of CAMM being hot-launched and using direct TVC of the main motor exhaust (ala AIM-9x)

http://www.youtube.com/v/7oRmGFVLJ08&hl=en_US&fs=1&

 

[Trident]

Point taken. That difference is likely to be a consequence of the intended launch platform though - if CAAM was air launched, it would probably work in much the same manner.

 

[sferrin]

Boeing's vectoring concept there was first mentioned several years ago but damned if I can remember where. :-[ (And it does bleed off the main motor.)

 

[SpudmanWP]

Was it in relation to DRADM-T?

btw, here is the FY2011 R&D funding doc

http://www.dtic.mil/descriptivesum/Y2011/AirForce/0604330F_PB_2011.pdf

According to the doc, the engine tech (DRADM-T) is almost done and we should have a prototype by next year.

 

[sferrin]

I don't remember. I just remember thinking "hmm, sounds complicated". :-\