Short History
The Navy replaced the Ch-46 Sea Knight with the CH-60 which was later redesignated the MH-60S in February 2001 to reflect its planned multi-mission use. The MH-60S is based on the UH-60 and has many naval SH-60 features. Unlike all other Navy H-60s, the MH-60S is not based on the original S-70B/SH-60B platform with its forward-mounted twin tail-gear and single starboard sliding cabin door. Instead, the S-model is a hybrid, featuring the main fuselage of the S-70A/UH-60, with large sliding doors on both sides of the cabin, a single aft-mounted tail wheel, and the engines, drivetrain and rotors of the S-70B/SH-60.