MTR390

The MTR390 is a free-power-turbine turboshaft family developed by MTU Aero Engines, Safran Helicopter Engines and Rolls-Royce for the Tiger helicopter. A separate power turbine delivers shaft power, while modular construction and digital control support operation and maintenance. The baseline MTR390-2C and enhanced MTR390-E are distinct versions. MTU identifies ITP Aero as an additional partner in the -E development and reports a 14 percent power increase over the baseline, rather than one rating shared by both versions.