Used by the US Navy as a multi mission helicopter undertaking roles of anti-surface warfare, vertical replenishment, combat search and rescue (CSAR), special warfare support and airborne mine countermeasures. 132 ordered by 2006.
It is based on the Army UH-60L Black Hawk but with the engines, drivetrain and rotors of the SH-60 Seahawk. A converted UH-60 prototype first flew on January 27, 2000. It was originally ordered in 1998 as the CH-60S
, and unofficially known as, Knighthawk
but was redesignated MH (multi-mission) in 2001. Replaced the UH-46 Sea Knight
(Hence, the Knight Hawk
) in the logistic role, the land-based UH-3H Sea King
and the carrier-based CSAR HH-60H
Seahawks. This resulted in the merger of the HC and HS squadrons into the new HSC units
Its main visible diference between other Seahawks is the aft-mounted tail wheel like those used by Army's Black Hawks
. The MH-60S has a common cockpit shared with the MH-60R
which allow a pilot to shift from one aircraft to another with minimal re-training.
On January 2013 was suggested that in their intended airborne mine countermeasures (AMCM) mission, the MH-60S equipped with the AQS-20A sonar may not be operationally effective or suitable because the helicopter is underpowered and cannot safely tow the sonar under the wide variety of conditions necessary.