ORB-31
Description of the radar set, tactical-technical characteristics

Figure 1: SA 319B Alouette III with ORB-31 radar
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frequency: | X-Band |
pulse repetition time (PRT): | |
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dead time: | |
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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.