Story ID: 354Turbomeca_A
Turbomeca Engine Upgrade for S-76C+
By: Mark Huber
Caption: The project will be accomplished at the same time as an airframe retrofit.
Word Count: 148
Turbomeca (Booth 10543) is offering an engine retrofit program that will enable Arriel 2S1-powered Sikorsky S-76C+ operators to upgrade to the Arriel 2S2 S-76C++ configuration. This engine upgrade will be conducted alongside an airframe retrofit program provided by Sikorsky.

The Arriel 2S2 engines deliver greater takeoff and cruise power and higher payload than the original. The engine is 8 percent more powerful than the 2S1, delivering takeoff power of 923 shp, cruise power of 823 shp and maximum one engine inoperative (OEI) rating of 1,033 shp. The 2S2 also features dual-channel Fadec and a TBO that has been extended to 3,850 hours.

The retrofit will be available in the second quarter of 2016. Approximately 12,000 Arriel engines have been produced, of which 700 are the Arriel 2S1 and 2S2 types, together logging 45 million flight hours. Ranging from 650 to 1,000 shp, the Arriel family powers more than 40 different helicopter types.