AN/APY-1/2
Description of the radar set, tactical-technical characteristics
Figure 1: Rotodome for AN/APY-1 or APY-2
| Specifications | |
|---|---|
| frequency: | S band |
| pulse repetition time (PRT): | |
| pulse repetition frequency (PRF): | |
| pulsewidth (τ): | |
| receiving time: | |
| dead time: | |
| peak power: | |
| average power: | |
| instrumented range: | 216 NM (≙ 400 km) |
| range resolution: | |
| accuracy: | |
| beamwidth: | |
| hits per scan: | |
| antenna rotation: | 6 r.p.m. |
| MTBCF: | 4 300 hrs |
| MTTR: | 36 min |
AN/APY-1/2
AN/APY-1 is operating in the S band (IEEE designation) or in the E band (NATO designation) primary radar system of the E-3A airborne warning and control system (AWACS) aircraft.
The surveillance antenna is mounted back-to-back with an L band identification-friend-or-foe (IFF) antenna, and is contained in a saucer-shaped, 30-ft (9.14 m) diameter rotodome mounted on two struts that rest on a reinforcement ring buried in the rear fuselage.
The AN/APY-2 is a variant of the AN/APY-1 and includes maritime surveillance capability.
The development began in January 1973 by Westinghouse (now Northrop Grumman) and were completed in September 1994. The Radar System Improvement Program (RSIP) improved the overall performance of the AN/APY-1/2(V) radar against small airborne targets, improved ECCM capability, and increased reliability and maintainability. The upgraded system can detect and identify non-cooperative targets out to 300 nautical miles (≙ 556 km).
