system could drive the active sonar at either a slow rate or a fast rate, which it used when the target drew near to obtain a precise proximity and rate of closure. The air dropped version of the torpedo is fitted with a parachute retarding system to slow entry into the water, and the nose is protected from the impact by a fairing which is immediately discarded upon entering the water. The propellers are covered by a ring fairing. Variants Mark 44 mod 0 - initial pre-production variant Mark 44 mod 1 - initial production version Mark 44 mod 2 Mark 44 mod 3 Mark 44 mod 4 Operators Former operators Specifications Length: 8.2 feet Diameter: 12.75 inches Weight: 432 lbs Range: 3.4 miles Speed: 30 knots Depth range: 50 to 1,000 yards Target detection range: 1,000 yards Warhead: 75 lbs high explosive Propulsion: 30 hp electric motor driven by seawater battery References Notes Torpedoes of the United States Cold War anti-submarine weapons of the United States Torpedoes of the United Kingdom Aerial torpedoes Military equipment introduced in the 1950s