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ROLLS-ROYCE

TAY Mk650-15

Mixed-flow turbofan

ENGINE9 documented fields
Compare this engine
OpenAP reference record 1RR021. Values describe the source configuration and test conditions. Fuel-flow modes are reference test points, not an in-flight fuel prediction. Dimensions and certified operating limits are not supplied by this dataset.
Reference thrust67200 N
Bypass ratio3.0 :1
Pressure ratio16.4 :1
Takeoff fuel flow0.874 kg/s
REFERENCE COVERAGELoading coverage…
PROVENANCE1 linked source
LAST RETRIEVED2026-09-05
View missing fields and source dates

Source editions

OpenAP engine propertiesEdition / snapshot: Reference snapshot, September 2026Retrieved: 2026-09-05

Retrieval dates record when Owl obtained the data; they are not publication dates or proof that a specification is current. Where the edition contains only a snapshot date, the original publication date is not recorded.

01

Output

Reference maximum thrustOpenAP engine dataset · 1RR021 · max_thrust
67,200 N
02

Architecture

Bypass ratioOpenAP engine dataset · 1RR021 · bpr
3 :1
Overall pressure ratioOpenAP engine dataset · 1RR021 · pr
16.4 :1
03

Fuel flow

Approach fuel flowOpenAP engine dataset · 1RR021 · ff_app
0.254 kg/s
Climb-out fuel flowOpenAP engine dataset · 1RR021 · ff_co
0.715 kg/s
Idle fuel flowOpenAP engine dataset · 1RR021 · ff_idl
0.119 kg/s
Reference LTO fuelOpenAP engine dataset · 1RR021 · fuel_lto
378 kg
Takeoff fuel flowOpenAP engine dataset · 1RR021 · ff_to
0.874 kg/s
04

Provenance

Source manufacturer nameHistorical source label retained.
Rolls-Royce plc

Aircraft connections

Exact engine-name matches in the aircraft catalogue. This is not a complete installation or certification list.

No exact aircraft connection documented in this dataset.

Dimensions, dry weight, shaft-power ratings and certified limits are not documented in this engine dataset.

Sources & context

Reference values vary with model, rating and conditions. Consult the relevant manufacturer documentation for certified specifications.