[Milsurplus] R648/ARR41 serial number 573

[Mike Morrow]

> The P3 never never used ARC 38

That's not at all likely to be true for ANY aircraft that had an AN/ARR-41.  I know of no case where an AN/ARR-41 would be purchased and installed with two AN/ARC-94 sets in an all-original installation.  But the AN/ARC-38 or -38A that originally accompanied the AN/ARR-41 could certainly have been later replaced by another AN/ARC-94, leaving the AN/ARR-41 in place.

Bottom line:  If an aircraft had an AN/ARR-41, it once had an AN/ARC-38 or -38A.

> ...the HF suite was an ARR41 and a pair of ARC 94 which is
> Collins 618T.

What?  No dashes?

More precisely, the AN/ARC-94 is a 618T-2 set that requires external 400 Hz AC power plus 28 vdc.  The AN/ARC-102 (most popular with the Army) is a 618T-3 set that requires only 28 vdc power because its PP-3702/ARC-102 mounting rack has an inverter for generating the required 400 Hz AC control voltage.

BTW, a serial number on that R-648/ARR-41 is meaningless without the associated order number on the name plate.

I never paid more than $100 for any of my three R-648 receivers, but the last I bought was 15 years ago.

Mike / KK5F