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 4140-00-365-2531
NSN 5920-01-569-3190
NSN 6220-00-995-5795
NSN 6110-01-043-1796
NSN 6610-01-585-9255
NSN 4140-01-576-6293
NSN 6320-01-224-0063
NSN 4140-00-281-4493
NSN 5990-00-306-0222
NSN 5999-00-808-9793
NSN 2925-01-462-1620
NSN 6645-00-925-0111