Pratt & Whitney Canada PT6A-34
Pratt & Whitney Canada PT6A-34 is a PT6A-family turboprop model offered as the higher-power Twin Otter engine for demanding operations. Pratt & Whitney describes the PT6A architecture as a two-shaft engine with a multi-stage compressor, single-stage compressor turbine, independent free power turbine, and epicyclic concentric reduction gearbox. EASA IM.A.081 records PT6A-34 installation limits of 750 shaft horsepower for five-minute takeoff and 633 shaft horsepower maximum continuous; those distinct ratings are preserved in the source context rather than collapsed into one generic value.
Identity
- Aliases
- PT6A-34PT6A 34
- Domains
- aviation
- Identity Level
- model
- Kind
- turboprop
- Name
- Pratt & Whitney Canada PT6A-34
- Status
- active
Details
- Description
- Pratt & Whitney Canada PT6A-34 is a PT6A-family turboprop model offered as the higher-power Twin Otter engine for demanding operations. Pratt & Whitney describes the PT6A architecture as a two-shaft engine with a multi-stage compressor, single-stage compressor turbine, independent free power turbine, and epicyclic concentric reduction gearbox. EASA IM.A.081 records PT6A-34 installation limits of 750 shaft horsepower for five-minute takeoff and 633 shaft horsepower maximum continuous; those distinct ratings are preserved in the source context rather than collapsed into one generic value.
- Developers
- Family
- Manufacturers
Links
- Official Url
- https://dehavilland.com/twin-otter-guardian/
Assets & Meta
- Creation Time
- August 1, 2026 at 18:55:17 UTC
- Updated Time
- August 23, 2026 at 19:40:19 UTC
Other
- Sources
- Accessed Date
- 2026-08-01
- Note
- The type-certificate holder identifies PT6A-34 as the optional engine for extreme operations and lists it as the Guardian powerplant.
- Publisher
- De Havilland Aircraft of Canada Limited
- Title
- Twin Otter Guardian
- Accessed Date
- 2026-08-01
- Note
- The manufacturer brochure distinguishes standard PT6A-27 and optional PT6A-34 engine choices for the current Twin Otter product.
- Publisher
- De Havilland Aircraft of Canada Limited
- Title
- DHC-6 Twin Otter Classic 300-G brochure
- Accessed Date
- 2026-08-23
- Note
- Pratt & Whitney describes the PT6A as a two-shaft engine with a multi-stage compressor, single-stage compressor turbine, independent power turbine, and epicyclic concentric reduction gearbox; its applications list includes PT6A-34.
- Publisher
- Pratt & Whitney
- Title
- PT6A Engine
- Accessed Date
- 2026-08-23
- Note
- EASA IM.A.081 identifies the exact PT6A-34 engine installation and records 750 shaft horsepower for five-minute takeoff and 633 shaft horsepower maximum continuous.
- Publisher
- European Union Aviation Safety Agency
- Title
- EASA.IM.A.081 — Pacific Aerospace 750XL