Pratt & Whitney Canada PW121
Pratt & Whitney Canada PW121 turboprop model in the PW100 family; the ATR 42 TCDS identifies it for ATR 42-320 and approved ATR 42-200/-300 modifications.
Identity
- Domains
- aviation
- Identity Level
- model
- Kind
- turboprop
- Name
- Pratt & Whitney Canada PW121
- Status
- active
Details
- Air Breathing Specs
- Shaft Power
- …
- Description
- Pratt & Whitney Canada PW121 turboprop model in the PW100 family; the ATR 42 TCDS identifies it for ATR 42-320 and approved ATR 42-200/-300 modifications.
- Developers
- Family
- Manufacturers
Links
Assets & Meta
- Creation Time
- August 13, 2026 at 12:22:41 UTC
- Updated Time
- August 22, 2026 at 14:23:49 UTC
Other
- Sources
- Accessed Date
- 2026-08-13
- Note
- Official engine TCDS lists PW121 as an exact PW100-series turboprop model.
- Publisher
- UK Civil Aviation Authority / EASA
- Title
- PW100 series engines Type Certificate Data Sheet IM.E.041
- Accessed Date
- 2026-08-13
- Note
- Official aircraft TCDS lists two PW121 engines for ATR 42-320 and permits PW121 installations on ATR 42-200/-300 under PW120 operating conditions.
- Publisher
- UK Civil Aviation Authority / EASA
- Title
- ATR 42 / ATR 72 Type Certificate Data Sheet UK.TC.A.00159
- Accessed Date
- 2026-08-22
- Note
- EASA IM.E.041 Issue 07 lists PW121 at 1,603 kW maximum take-off shaft power at sea level; this value is normalized into the model's shaftPowerKw field.
- Publisher
- European Union Aviation Safety Agency
- Title
- EASA.IM.E.041 — Pratt and Whitney Canada PW100 series engines, Issue 07