Magnetic anomaly detector
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A magnetic anomaly detector (MAD) is an instrument used to detect minute variations in the Earth's magnetic field. The term refers specifically to magnetometers used by military forces to detect submarines ; military MAD equipment is a descendant of geomagnetic survey or aeromagnetic survey instruments used to search for minerals by detecting their disturbance of the normal earth-field.
MAD rear boom on P-3C
The SH-60B Seahawk helicopter carries a yellow and red towed MAD array known as a "MAD bird", seen on the aft fuselage
PAC P-750 XSTOL geosurvey aircraft with a MAD stinger in Upernavik, Greenland
Sikorsky SH-60 Seahawk
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The Sikorsky SH-60/MH-60 Seahawk is a twin turboshaft engine, multi-mission United States Navy helicopter based on the United States Army UH-60 Black Hawk and a member of the Sikorsky S-70 family. The most significant modifications are the folding main rotor blades and a hinged tail to reduce its footprint aboard ships.
A Seahawk hovers during a simulated casualty evacuation as MARSOC operators carry a stretcher.
An HH-60H Seahawk deploying a SAR swimmer
An MH-60R Seahawk conducts sonar operations.