An item designed to be deployed from a ship for testing the accuracy of shipboard or airborne sonar systems. When depolyed in the water it hangs from a flotation device (buoy) which is equipped with a radar reflector. When interrogared by a pulse transmitted from a shipboard or airborne sonar, the transponder replies with an acoustic signal. Simultaneous range and azimuth measurements made by precision fire control radar aboard the interrogating platform provide accurate references for comparison with measurements taken from the interrogating sonar system.
Classification: Parts & accessories for direction finding compasses and other navigational instruments and appliances
NSN 5930-01-447-9905
NSN 5999-01-515-5383
NSN 5855-01-340-6541
NSN 6105-01-503-6209
NSN 7035-01-611-2610
NSN 5855-01-109-6433
NSN 5925-01-396-9432
NSN 6650-01-461-7226
NSN 6145-01-225-5822
NSN 6150-01-104-9607
NSN 5950-01-255-9554
NSN 6145-01-006-5530