Pratt & Whitney Canada PT6B-36A
The Pratt & Whitney Canada PT6B-36A is a free-turbine turboshaft engine used in the Sikorsky S-76B. A compressor with three axial stages and one centrifugal stage feeds a reverse-flow annular combustor; the gas-generator turbine and a separate power turbine provide the helicopter's shaft-power drive. The -36A uses electronic engine control with manual backup. Its five-minute takeoff and maximum-continuous ratings describe different operating regimes and must not be treated as interchangeable outputs.
Identity
- Aliases
- PT6B-36APratt & Whitney PT6B-36A
- Domains
- aviation
- Identity Level
- model
- Kind
- turboshaft
- Name
- Pratt & Whitney Canada PT6B-36A
- Status
- active
Details
- Air Breathing Specs
- Shaft Power
- …
- Description
- The Pratt & Whitney Canada PT6B-36A is a free-turbine turboshaft engine used in the Sikorsky S-76B. A compressor with three axial stages and one centrifugal stage feeds a reverse-flow annular combustor; the gas-generator turbine and a separate power turbine provide the helicopter's shaft-power drive. The -36A uses electronic engine control with manual backup. Its five-minute takeoff and maximum-continuous ratings describe different operating regimes and must not be treated as interchangeable outputs.
- Developers
- Family
- Manufacturers
Links
Assets & Meta
- Creation Time
- August 14, 2026 at 03:16:57 UTC
- Updated Time
- October 17, 2026 at 12:25:13 UTC
Other
- Sources
- Accessed Date
- 2026-08-13
- Note
- EASA lists PT6B-36A as an exact variant of the PT6B-36 series and records its certified engine characteristics.
- Publisher
- European Union Aviation Safety Agency
- Title
- EASA.IM.E.039 - Pratt and Whitney Canada PT6B-36 series engines
- Accessed Date
- 2026-08-13
- Note
- EASA identifies Pratt & Whitney Canada PT6B-36A as the engine type designation for the Sikorsky S-76B.
- Publisher
- European Union Aviation Safety Agency
- Title
- EASA.R.113 S-76B type certification
- Accessed Date
- 2026-08-22
- Note
- EASA type-certificate data lists the exact PT6B-36A at 732 kW takeoff power for five minutes and 662 kW maximum continuous power, supporting the normalized shaft-power field.
- Publisher
- European Union Aviation Safety Agency
- Title
- EASA.IM.E.039 — PT6B-36 series engines Type Certificate Data Sheet