[Milsurplus] Gear needed for B-24-J restoration in Poland.

[Mike Morrow]

Ken wrote:

   I've  been  contacted  by  the  Polish  Embassy  in  Washington,  D.C.
   concerning  the  restoration  of  a B-24-J by the Museum of the Warsaw
   Uprising in Poland.

   I would assume that the BC-191 was the transmitter, and the BC-348 the
   receiver  in the radio op's position, but was the SCR-274N system also
   used? What did they use with the loop antenna? Perhaps a BC- 453? What
   other gear would be common to the radio op's position?

Ken,

I'm assuming it was an USAAF B-24-J (some B-24-Js were operated by the RAF).  Here is a list of the radio gear most likely found on a late WWII B-24 (and most other USAAF medium and heavy bombers in the ETO) that didn't carry any countermeasures sets or bombing assist radars:

The HF liason set would have been an SCR-287 (BC-375 transmitter, BC-348 receiver, BC-306 LF antenna coil, PE-73 dynamotor, tuning units, and mountings).

The HF command set would have been a two-transmitter, three-receiver SCR-274-N.

The VHF command set would have been an SCR-522 with PE-94 dynamotor, BC-602 control box.  This was *the* workhorse command set in the ETO.

The ADF set would have been an SCR-269 (BC-433 receiver, BC-434 control box, LP-21 loop, 400 cps inverter, I-81 and -82 indicators, CD-365 loop cable).

The IFF set would have been an SCR-595 or -695.

If it had the SCS-51 ILS system, it would have an AN/ARN-5A (R-89/ARN-5A) glide slope receiver and a RC-103 (BC-733) localizer receiver, both connected to an AS-27/ARN-5 antenna, BC-733 control box, and I-101 indicator.

RC-93 marker beacon receiver.

RC-36 (??) BC-347 interphone system and PE-86 dynamotor, ten BC-366 or -1366 jack boxes, and FL-8 range receiver audio filters at pilot and co-pilot boxes.

SCR-578 "Gibson Girl" rescue/emergency 500 kc transmitter. 

A lot of the major units of the above gear can be found by ebay searches.  I hate to think what it would cost to ship it all.

The loop you sent, I assume, was an LP-21.  It goes with the SCR-269 ADF, and the later AN/ARN-7 ADF, but not to the BC-453.  The BC-453 was useful for pilot monitoring of Adcock directional LF/MF beacon signals, for which no loop antenna was required.

Mike / KK5F