The eighth generation of the S-76 line is powered by newly developed, twin dual-channel FADEC-controlled Pratt & Whitney Canada PW210S engines, each producing 1,077 shp. These give the S-76D 14% more takeoff power and an 8% better fuel burn rate than the 922-shp Turbomeca Arriel 2S2 engines that power the S-76C++. They also take the S-76 full cycle in its choice of engines. The first S-76A rolled out in the late 1970s and was powered by Rolls-Royce (neé Allison) 250-C30 engines. ...
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