ORB-31
Description of the radar set, tactical-technical characteristics
Figure 1: ORB-31
| Specifications | |
|---|---|
| frequency: | X-Band |
| pulse repetition time (PRT): | |
| pulse repetition frequency (PRF): | |
| pulsewidth (τ): | |
| receiving time: | |
| dead time: | |
| peak power: | |
| average power: | |
| instrumented range: | |
| range resolution: | |
| accuracy: | |
| beamwidth: | |
| hits per scan: | |
| antenna rotation: | |
| MTBCF: | |
| MTTR: | |
ORB-31
ORB-31 is operating in the X-Band modular radar that can be configured to fit a number of helicopters for surface search, target designation, missile fire control, weather monitoring, navigation, anti-surface warfare and anti-submarine warfare missions. The radar used a parabolic antenna in sector mode, providing a fan beam pattern.
The SA 319B Alouette III could be fitted with ORB 31 radar for maritime warfare, accommodated in a bulbous nose fairing attached to the front cockpit glazing.
Development began in the 1970s. The flight test took place in December 1974.