[ARC5] APW-11A and APA-90 avionics pieces by A.R.C.

[zakariya.abu at yandex.com]

Colleagues,

I realized that the APW-11A command radar and the APA-90 command 
indicator were made by the Aircraft Radio Corp. As I understand, these 
avionics pieces were the airborne part of the ground-directed bombing 
(GDB) systems of the 1950s.

The APW-11A and APA-90 were fitted in the B-57B and C Canberra, and 
F-100D Super Sabre jets.

What kind of equipment was used on the ground to send command signals to 
the APW-11A-equipped aircraft?

Enclosed please find a scan from the B-57C manual, which depicts the 
airborne part of the system.

73,

Jan SP5XZG
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