General Electric H-Series
turboprop aircraft engine
The General Electric H-Series is a family of turboprop aircraft engines produced by GE BGA Turboprops. The initial H80 is an updated derivative of the Walter M601, while the H75 and H85 are later derivatives.
Development
The H80 was launched in 2009 based on the M601. GE added a new compressor, blisks, blades and new stators to enhance power by 3% and boost efficiency by 10%.
It reaches 597 kW (801 hp) (shaft horsepower) from the M601-F's 580 kW (780 hp), and improves hot and high performance.
The H80 was certificated by EASA at 13 December 2011, followed by the FAA at 13 March 2012. Its Russian type certificate was received in October 2012, and the engine also approved by Brazilian Civil Aviation agency (ANAC) and the Argentine Administración Nacional de Aviación Civil.
Its Electronic Engine and Propeller Control (EEPC) system received EASA type certification in late 2016.
The Diamond Dart 550 military trainer is due to fly it in early 2018 and it will be certified on the Thrush 510G crop duster in this year.
Design
The two-shaft, reverse flow design is derived from the Walter M601: its core features a two-stage axial and single-stage centrifugal compressor, an annular combustor and a single turbine stage, and its propulsion section is powered by a single-stage turbine driving a two-stage planetary gearbox.
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