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ASV Airborne Radar


ASV Mark II Surface Search Radar


Specifications:


Wavelength 170 cm
Pulse Width 2.5 microsecond
Pulse Repetition Frequency     
400 Hz
Power 7 kW
Range 20 miles (30 km) for destroyer
60 miles (100 km) for coastline
Minimum range 1 mile (1.6 km)
Production
Several thousand from late 1940 on

ASV Mark III (H2S Mark I) Surface Search Radar


Specifications:


Wavelength 10 cm
Pulse Width 1.0 microsecond
Pulse Repetition Frequency     
750 Hz
Power 50 kW
Range 100 miles (160 km)
Scope
B scope
Production The very similar DMS-1000 was installed on B-24 Liberators from March 1942.
The British model was available operationally from early 1943


ASV (Air to Surface Vessel) designated a family of airborne radars developed by the Allies during the Second World War. ASV Mark II was the first true production airborne radar and first came into operational use in late 1940. It was used in a large number of British aircraft types, including the Sunderland, Wellington, Beaufort, and Lend-Lease Hudson and Liberator. Mark III was a centimetric radar using scarce magnetrons, and there was considerable wrangling over the available equipment between RAF Coastal Command and Bomber Command. The very similar American DMS-1000 was installed on Liberators from March 1942 on.

References

Buderi (1998)

Friedman (1981)
Guerlac (1987)

Gustin (accessed 2010-8-7)



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