Would be interesting to see if they actually were put in service.  IIRC the reason there were (and possible still are) so many available in surplus in original packing
was due to them not being used in the ETO, because it was decided to use British IFFs exclusively there.

I have very mint one in a somewhat worse for wear original packing that I scored for 20 bucks at a Nearfest several years ago.  Would like to see it go to a good home at a warbird museum or collection.

Chris B.
AJ1G Stonington CT


Sent from my EE-8 Field Telephone

> On Apr 18, 2023, at 11:18, MARK DORNEY via MRCA <mrca@mailman.qth.net> wrote:
>
> I’m finding reference that the ABA-1 IFF may have been actually issued to USN aircraft operating in the PTO. It makes sense, especially in 1941-43,  since the USN and to a lesser extent the USAAF were the largest operators of aircraft in the PTO until after 1943. ( save for the RAF and other Commonwealth aircraft, and of course the Japanese ).   Thoughts?
>
>

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