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| The
Tay 611-8 powering the Gulfstream GIV, GIV-SP, G300 and G400
aircraft is renowned for its reliability. An improved
version of the engine is under development. The
new engine mark designated Tay 611-8C for the Gulfstream G450 includes
the incorporation of an electronic engine control
system (FADEC). |
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| This latest Tay
edition is aimed at the continuation of the record
reliability set over the last 40 years by the
preceding Rolls-Royce powered Gulfstream GI (Dart
powered), GII, and GIII (Spey powered). The Tay
& Spey engines also power a range of military
aircraft. The Spey engine still operates on the
BAC One-Eleven and Fokker F28, the Dart engine
still operates on Fokker 27 in many countries. |
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| The Tay 650 on
the latest Fokker 100 aircraft model provides
- compared to the older Tay 620 - an increased
maximum thrust for take-off, climb and cruise,
plus efficiency improvements through an increase
in fan diameter and an advanced high-pressure
turbine. The Fokker 100 serves major airlines
on regional routes all over the world. Other Tay
engine applications include the re-engined Boeing
727 (Tay 651) and the Fokker 70 (Tay 620). |
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| The Tay operates
clean and quiet at levels of noise and emissions
well below those required by current and future
regulations. |
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| View
cross-section of the Tay |
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| View
cross-section of the Spey |
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| View
cross-section of the Dart |
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Technical
details
The Tay is a two-shaft high-bypass ratio engine.
It consists of a 44-45 inch diameter wide-chord
fan with three stages of LP compressor to the
rear, a 12-stage HP compressor; annular combustion
system, consisting of ten combustors; a two-stage
HP turbine; and three-stage LP turbine. The majority
of the bypass duct is constructed in carbon fiber
composite material. Cold bypass air and hot exhaust
are combined in a forced mixer that gives good
propulsive efficiency and low noise generation. |
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| - Today's fleet
of over 750 Tay-powered aircraft has accumulated
over 14 millions flight hours in service |
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| - The average
Tay 650 engine basic despatch reliability consistently
achieves or exceeds 99.95 %. |
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| Engine |
Tay 651 |
Tay 650 |
Tay 620 |
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| Entry into Service |
1992 |
1989 |
1988 |
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| Max Take-off Thrust |
15,400lb (68.4 kN) |
15,100lb (67.0kN) |
13,850lb (61.5kN) |
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| Aircraft Applications |
Boeing 727-100RE |
Fokker 100 |
Fokker 100/70 |
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| Max Passg.* |
- |
107 |
79 |
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| Max Range (nm)* |
- |
1,680 |
2,020 |
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| Engine |
Tay 611-8 |
Spey 511 |
Dart 529 |
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 |
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| Entry into Service |
1987 |
1968 |
1959 |
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| Max Take-off Thrust |
13,850lb (61.5kN) |
11,400lb (50.6kN) |
2,210shp |
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| Aircraft Applications |
Gulfstream GIV, GIV-SP, G300, G400 |
Gulfstream GII, GIII |
Gulfstream GI |
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| Max Passg.* |
19 |
19 |
19 |
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| Max Range (nm)* |
4,200 |
2,613 / 3,691 |
1,938 |
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| *Aircraft Manufacturer's Data |
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Further information |
Tay
CorporateCare™ Package
Total engine maintenance cost programme,
simple and flexible comprehensive cost per
flight hour service. Contact
us Tay
customer training
Course information, schedules and contacts
Tay, Spey &
Dart Repair & Overhaul
Rolls-Royce offers full repair and overhaul
facilities for these products in the following
countries:
- Brazil
- Canada
- UK
- USA (Tay only) |
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