[Milsurplus] Dayton BC-1158, etc.
Unserviceable but Repairable
cosmoline at aa4rm.ba-watch.org
Mon May 19 11:25:55 EDT 2008
Had three things spread out in view in space 2310. Their purpose wasn't
sale but info collection. What follows here is oral tradition &
hopefully won't be considered dead-nuts fact.
= = = = = = = BC-1158 = = = = = =
Ray F noted this '1158 was up on the MFP popularity list. I got it
thanks to a tip from Nick, KD4CPL. It incorporates the TU-75 triple 815
RF deck & has 5 tone generators plus a 4th 815 AM modulator.
It's apparrent largest production use was with the AZON bomb that
used tones as follows
1. Rotational
2. up
3 down
4 right
5 left
AZON stands for Azimuth Only
This critter reeled in a fellow that'd been a civilian contractor for
20 years at Eglin AFB. He said system nicknamed Tarzan bomb & went on
to say a B-29 swould carry four or five of the refrig-size bombs.
The operator would watch the bomb through a periscope & guide it to
the target. The tone-generators varied enough fm one BC-1158 to the
next that receivers were calibrateed against individual transmitters
and so inventoried for application. Nick KD4CPL also noted the
bombs that carried a flare in the tail for easy identity.
I related this to a near-family member who equiped MK-14(?) 'nam bombs
with JDAMS. I referenced the French expression that "the more things
change the more they stay the same." Or, as H. Cosell would say
"what goes around comes around"
= = = = = = = Next, the APW-11/RT-122 = = = = = = =
Wrote a blurb about it having ARC-type mounting profile & rear connector.
That was a few weeks back. WikiPedia, Google, & Chesson disclosed
several write-ups that said it was a Radar bombing & Telemetry/RC system.
U/w B-57, B-66, B-61 Matador & p/o MSQ-1 guidance system. The
well-written descriptions gave little operational clues.
But enter the Eglin man again. He said that that the gizmo's highest
usage was top secret & employed a C-400 control box. And it was first
fitted to three B-57s. This that would decode RT-122 data onto a
display with a 50-word vocabulary. It received on an IFF frequency
onto which was encoded 6-bit info & this jives since there's 6 12AT7s
inside probably acting as a register-set of j-k flip-flops.
So a result, such as "bomb bridge 22 at 10" would show up on some
cockpit display. He said this application of the set was never
compromised since the data transfers were co-mingled with regular
IFF info. He said the term "telemetry" on the front panel was largely a
smokescreen much like BC-966 spread-spectrum Mk-III IFF r-t was
deceptively labled "radio receiver."
The use proved very successful & it & a successor went into nearly
every US bomber.
= = = = = = = = = = "Packset 8907." = = = = = = = = =
This FBI 80m set is probably a Radio Specialties Mfg type SF set.
One fella said he thot he's seen them in Forest Svc. use in Pacific NW.
That's as close as I came to a new disclosures on the blivot.
Know it's FBI since riveted tag says A&TT Atl. Reg. P-20. Tube
date codes in late 50s.
Was really hoping to get set underway & appear in a Blues Bro outfit.
Outfit being white shirt, black pants, & homburg hat w. junior detective
badge. MO wudda been request 3885 traffic stop now because it was an
FBI frequency.
One funny thing was on one of many answers on it being AM, tubes, &
for FBI stake outs once. Fella in group chimes in, whaddya mean "once?"
My comeback should have been "it's so low tech, security now probably
better than ever."
Marty
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