avia.wikisort.org - Design

The Emerson Electric AN/APQ-153 was an I band radar system developed for the Northrop F-5E fighter aircraft. Required to fit into the tight confines of the originally radar-less F-5, the system offered relatively simple air-to-air modes and a short detection range. The AN/APQ-157 was a similar system with dual displays and controls for the twin-seat F-5F trainer. Many of the F-5s still flying have been upgraded to the improved AN/APQ-159.

The APQ-153 was a relatively simple Pulse-Doppler radar intended to improve gunnery on the F-5. It offered four modes of operation; AA1 and AA2 air-to-air target search at different ranges, "dogfight" which locked onto the closest target and offered ranging and gun cueing, and finally a missile bore-sight cueing mode that calculated the engagement envelope of the AIM-9 Sidewinder and gave the pilot directional cues to help them fly into the envelope.

The antenna was necessarily small, a 12 by 16 inches (30 cm × 41 cm) parabolic dish that was stabilized to account for maneuvering. This was connected to a small 5-inch (13 cm) B-Scope display in the cockpit.

External links

• AN/APQ-153/-157 fire-control radars (United States)

На других языках

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- [en] AN/APQ-153

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[fr] AN/APQ-153

L'AN/APQ-153 d'Emerson Electric est un système radar à bande I développé pour les avions de chasse Northrop F-5E. Nécessaire pour s'adapter aux limites restreintes du F-5 sans radar d'origine, le système offre des modes air-air relativement simples et une courte portée de détection. L'AN/APQ-157 est un système similaire avec double affichage et commandes pour l'entraîneur F-5F à deux places. Bon nombre des F-5 qui volent encore ont été mis à niveau vers l'AN/APQ-159 amélioré.

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