AN/APQ-140
Description of the radar set, tactical-technical characteristics
Figure 1: AN/APQ-140, static display in a museum.
| Specifications | |
|---|---|
| frequency: | J-band |
| pulse repetition time (PRT): | |
| pulse repetition frequency (PRF): | |
| pulsewidth (τ): | |
| receiving time: | |
| dead time: | |
| peak power: | |
| average power: | |
| instrumented range: | NM (≙ km) |
| range resolution: | |
| accuracy: | |
| beamwidth: | |
| hits per scan: | |
| antenna rotation: | |
| MTBCF: | |
| MTTR: | |
AN/APQ-140
AN/APQ-140 was a multifunction radar operating in J-band, developed by Raytheon and intended for the B-1 Lancer supersonic strategic bomber. The prototype was tested in a KC-135 with an enlarged nose radome. It used a passive, radiation-fed phased-array antenna (reflection type) with a diameter of about 70 cm and 3 300 phase-shift elements. However, for cost reasons, in B-1 Lancer, various radars developed from the AN/APQ-66 were used instead in the initial production phases. The AN/APQ-164 was then finally used.