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 6620-01-559-9116
NSN 6220-01-406-6792
NSN 6110-00-100-4775
NSN 5985-01-421-5029
NSN 4140-00-003-8311
NSN 5835-00-438-4489
NSN 4140-01-577-0245
NSN 6620-00-883-1181
NSN 5990-00-366-0112
NSN 6610-01-010-2112
NSN 6620-01-543-5491
NSN 7035-00-371-7749