[ARC5] [Milsurplus] More Guided Bomb Control Box Stuff

[J. Forster]

It's interesting to me how far this technology has come in our lifetimes,
from the AZON to today's Predators, Reapers, and Grey Eagles that killed a
couple of Jihadists in Yemen this morning.

YMMV,

-John

=============



>> http://www.ebay.com/itm/360397107215
>
> There are a couple of too-short (less than 1 minute) video clips on
> youtube that show the BC-1156-A control box in use.
>
> Vertical Bomb VB-3 (RAZON) and VB-2 (AZON):
>
>   http://www.youtube.com/watch?v=W20ayF7e9NI
>
> Glide Bomb GB-4:
>
>   http://www.youtube.com/watch?v=LaU7prmBkPk
>
> The GB-4 clip shows the TV video coming from an actual bomb drop test
> in 1944.
>
> The VB-3 and GB-4 were not used in combat in WWII.
>
> Yesterday I posted a short description of the AN/CRW-3 control receiver
> in the GB-4, based on the BC-454-B or BC-455-B.  Dave Stinson some years
> ago posted the Operating Instructions AN 16-30CRW3-2, 21 April 1945, for
> the AN/CRW-3.  That manual contains the following statement:
>
> "1.e. Radio Receiving Set AN/CRW-3 is satisfactorily controllable at
>  distances up to 15 miles from the control source, when the controlling
>  transmitter is Radio Transmitter BC-375 or its equivalent."
>
> Apparently, the VHF 53 to 95 MHz RAZON equipment (AN/ARW-38 and AN/CRW-7)
> used for Vertical Bomb VB-3 was not satisfactory for the longer range
> Glide Bomb GB-4, which used HF control signals.  However, the 254 to 372
> MHz range was used to transmit video from the GB-4 using AN/AXT-2 to the
> controlling aircraft receiver AN/AXR-1.
>
> Somewhat related, the famous and problematic use of war weary B-17
> aircraft
> (re-designated BQ-7) or B-24 aircraft (re-designated BQ-8) as guided
> missiles used the AN/ARW-1 receiver (BC-617 or R-154/ARW) in the missile,
> and the AN/ARW-18 transmitter (BC-925 for 20 watts/18 mile range with
> AM-33/ART added for 100 watts/75 mile range) in the controlling aircraft.
> These controlled using FM signals in the 30 to 40 MHz range.  The 254 to
> 372 MHz range was used to transmit video from the BQ-7 or -8 using
> AN/AXT-2
> to the controlling aircraft receiver AN/AXR-1.
>
> Mike / KK5F
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