[Milsurplus] Aircraft Radio Corporation T-15, -16, -17

[David Stinson]

----- Original Message ----- 
From: "Hubert Miller" <Kargo_cult at msn.com>
> 
> I also think the airfield frequencies theory is
> imaginative but wrong. Don't take it personally. 

Well, I understand, but I didn't pull that theory
"out-of-the-air" (pun intended).  I do have some
basis for the idea.

Military Aircraft equipment, Standard 1920s-
to early 30s, until SCR-183 came out:

SCR-133 Pursuit Plane Set, Rcvr 250-1750 KC, 
                Xmtr 860-2000 KC AM
SCR-134 Aircraft TX 400-850 KC, RX 250-1500 KC
SCR-135 Scout/Bomber Radio,  250-2000 KC

1926 Navy Comm Plan, Aircraft Freqs:
District aircraft: 1105-1295 KC
Air Squadrons and Aircraft Shore Stations: 550 KC
Naval District Patrol Patrol Planes: 605, 685, 755 KC
(Etc.  There is much more but I think this sufficient).

Mike Morrow:   You are the expert in this 
pre-war aircraft gear.  Comments?

If a U.S. Navy squadron is going to patrol the area
around the Panama Canal and has been ordered 
by "pols and generals" to "good neighbor" 
co-operate with Costa Rican patrol aircraft, the
Costa Rican's aren't likely to have "modern" equipment
right away; they're going to have what they bought 10
or 15 years ago or "Uncle Sam's Hand-me-downs"
like SCR-135.  If a patrol of Hellcats wanted to talk
to an unknown surface vessel, 500KC would likely 
be the only means short of dropping a note with 
a rock and hoping someone there reads English.

If a list member has any contacts with military historians 
in places like Costa Rica or Columbia
(or Iran or Morraco etc.) that have knowledge of what
indiginous military patrol aircraft carried for comms in 
1940-44, it would be interesting to hear.  I've got a 
standing bet of coffee and donuts we'll find it was MF
stuff fitting the conventions of late 20s above.

73 Dave S.





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