1000 - 3000hp turboshaft PT6C-67C

for helicopter

Overview
The PT6C Series is a turboshaft engine family delivering 1,600 to 2,000 shaft horsepower for new-generation medium-class helicopters and tiltrotors. It combines PT6 heritage with modern engine control options to support demanding mission profiles including offshore, EMS, SAR, and utility operations.

Design and Purpose
Derived from the PT6A-67 turboprop lineage, the PT6C retains the proven two-shaft layout: a multi-stage compressor driven by a single-stage compressor turbine and an independent free power turbine driving the output shaft. Models incorporate advanced materials and cooling solutions to optimize durability and power-to-weight ratio. Electronic Engine Control (EEC) up to Dual Channel FADEC is available for improved pilot interface and maintenance diagnostics.

Setting a New Standard in Its Class
The PT6C Series is optimized for high power-to-weight performance and competitive fuel consumption while maintaining operational robustness in harsh environments. Modern control architectures enhance engine handling, start reliability and on-wing diagnostics to reduce aircraft downtime.

Versatility on a Wide Variety of Applications
The 1,600–2,000 shp class is produced in four main models and is certified or selected for multiple platforms. Typical mission sets include offshore transport, emergency medical services, search & rescue, corporate/VIP transport and utility work.

Tailor-made Services and Global Customer Support

• Maintenance programs such as Eagle Service Plan™ (ESP™), Fleet Service Plan (FSP) and Fleet Management Plan (FMP) to protect asset value and manage lifecycle costs.
• Customized solutions including P&WCSMART™ Helicopter Engine program and a two-year/500-hour Certified Pre-Owned program for used engines and aircraft.
• Advanced oil analysis and FAST prognostics for improved engine health monitoring, dispatch availability and reduced operating costs.

Key Technical Features

• Electronic Engine Control (EEC) with hydro-mechanical backup; Dual Channel FADEC on recent models for pilot- and maintenance-friendly operation and enhanced diagnostics.
• Independent free power turbine with shrouded blades and two-stage forward-facing output to simplify hot-section maintenance.
• Compressor architecture: multi-stage axial plus single-stage centrifugal with reverse-flow combustor and radial inlet protected by an FOD screen.
• Single-stage compressor turbine with cooled vanes and advanced high-temperature materials for improved durability and power density.
• Direct-output PT6 power section leveraging PT6A-67 heritage for proven installation and support pathways.

Specs (table)

• PT6C-67A — Thermodynamic power: 2,000 shp; Mechanical power: ~1,940 shp; Output shaft speed: 30,000 RPM; Diameter: ~25 in; Length: 64.5 in.
• PT6C-67C — Thermodynamic power: 1,700 shp; Mechanical power: ~1,100 shp; Output shaft speed: 21,000 RPM; Diameter: ~25 in; Length: 65 in.
• PT6C-67D — Thermodynamic power: 1,679 shp; Mechanical power: ~1,183 shp; Output shaft speed: 21,000 RPM; Diameter: ~25 in; Length: 59 in.
• PT6C-67E — Thermodynamic power: 1,800 shp; Mechanical power: ~1,300 shp; Output shaft speed: 21,000 RPM; Diameter: ~25 in; Length: 65 in.

Applications

• PT6C-67A: Leonardo AW609.
• PT6C-67C: Leonardo AW139.
• PT6C-67D: TEMSCO UH-1 Global Eagle.
• PT6C-67E: Airbus Helicopters H175.

Technical specifications

• Product family: PT6C Series (1,600 to 2,000 shp class).
• Models produced: PT6C-67A, PT6C-67C, PT6C-67D, PT6C-67E.
• Compressor: 4-stage axial + 1-stage centrifugal; reverse-flow combustor; radial inlet with FOD screen.
• Power turbine: independent free power turbine with shrouded blades; two-stage forward-facing output.
• Engine control: EEC to Dual Channel FADEC available depending on model.
• Design focus: optimized power-to-weight ratio, fuel efficiency, durability and ease of maintenance diagnostics.