The HTS900 engine is the latest engine to join the Honeywell family of helicopter turboshaft engines and incorporates the next generation dual centrifugal compressor architecture.

Two gearbox designs are available, one for 6,317 RPM output and one for 9,598 RPM output providing the airframe OEM flexibility of transmission system design. Additionally, the HTS900 engines are available with a conventional front drive with rear tail rotor drive layout which further enhances the engine's integration ease into new or existing helicopters.