helicopters built with corrosion-proof composites, and new features like rear ramps. The USA, in contrast, decided to upgrade existing H-60 designs for the Army and Navy . Hence the MH-60R Multi-Mission Helicopter (aka. “Romeo”) and MH-60S (aka. “Sierra”) Seahawks. MH-60Rs and MH-60Ss will eventually replace all SH-60B/F & HH-60H Seahawks, HH-1N