In October 1922, USS " Corry " was fitted with a Hayes Sonic Depth Finder for testing.
2.
She joined in fleet maneuvers, cruises from Alaska to the Caribbean, development and tests of sonic depth finders, antiaircraft gunnery, aircraft rescue and plane guard rehearsals.
3.
6 : 40 p . m . _ Sonic depth finder dropped from Russia's Peter the Great warship confirms location of Kursk, Defense Minister Sergeyev says later in a September interview.
4.
The equipment included a fathometer, a Dorsey sonic depth finder, a Hughes automatic depth recorder system, a special taut-wire measuring gear with 120 nautical miles ( 138 statute miles; 222 km ) of fine wire and several tons of iron balls, and hydrophones.
परिभाषा
depth finder for determining depth of water or a submerged object by means of ultrasound waves पर्याय: fathometer,
मोबाइल