PICTURED BELOW IS THE ALLIEDSIGNAL Bendix APX-100 (V) identification-friend-or-foe (IFF) equipment fitted to Hungarian air force Mikoyan MiG-21 Fishbed, MiG-23 Flogger and Sukhoi Su-22 Fitter combat aircraft. One of the system's two antennae is visible to the rear of the MiG-21Bis cockpit (right). In the case of the MiG-21, the ...
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