ORB 37
Description of the radar set, tactical-technical characteristics

Figure 1: ORB 37
Specifications | |
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frequency: | X-Band |
pulse repetition time (PRT): | |
pulse repetition frequency (PRF): | |
pulsewidth (τ): | 0.4 or 2.5 µs |
receiving time: | |
dead time: | |
peak power: | 10 kW |
average power: | |
instrumented range: | |
range resolution: | |
accuracy: | |
beamwidth: | |
hits per scan: | |
antenna rotation: | |
MTBCF: | |
MTTR: |
ORB 37
ORB 37 is operating in the X-Band weather and ground mapping radar developed for French C-160 Transall transport aircraft. It is derived from the ORB-31 family of radars, but is configured to fit fixed-wing aircraft, has a lower peak power, and uses a slotted flat-plate antenna.
ORB 37 carries out weather avoidance and accurate ground-mapping functions, and is fitted with an interrogation facility for beacon homing. There are two scan modes: low rate in the weather mode and at high rate when ground-mapping.
The ORB-37 has seven LRUs. These include the antenna, a transreceiver, power supply, an analog parallel peripheral interface at the operator’s station particularly suited for ground mapping, as well as a digital PPI scope on the flight deck, and flight deck and navigator station control units.