Description of the radar set, tactical-technical characteristics
Figure 1: AN/APS-15
|frequency:||9 375 MHz
|pulse repetition time (PRT):|
|pulse repetition frequency (PRF):||622 Hz|
|pulsewidth (τ):||1 µs|
|peak power:||> 40 kW|
|average power:||50 W|
|instrumented range:||100 mi (≙ 160 km)|
|accuracy:||± 150 m|
|hits per scan:|
|antenna rotation:||20 rpm|
AN/APS-15 (alias H2X) was operating in X-Band navigation and search radar used during the end of World War Ⅱ. It was used in the B-17 “Flying Fortress” as bombing set with the nick name “Mickey”.
The antenna was a parabolic reflector fed by a Cutler feed. The reflector was modified with an additional lower lip to produce a Cosecant squared type beam in elevation. Since the radar was mounted in a small radome upside down under the fuselage of the airplane, an inverted cosecant squared pattern was created.