 The CH-53K will feature new stubby composite sponsons to cut overall width, resulting in a narrower footprint for shipboard operations.It will also be equipped with a new composite rotor blade system, with technology similar to that found on the UH-60 Black Hawk helicopter.The CH-53K will use the General Electric GE38-1B engine, selected over the Pratt and Whitney Canada PW150 and a variant of the Rolls-Royce AE 1107C-Liberty used on the V-22 Osprey.