| Tay | |
|---|---|
| |
| Rolls-Royce RB.183 Tay turbofan engine on display at the Rolls-Royce Heritage Trust, Derby | |
| Type | Turbofan |
| Manufacturer | Rolls-Royce plc |
| First run | 1984 |
| Major applications | Fokker 70 Fokker 100 Gulfstream IV Gulfstream G350/G400/G450 |
| Developed from | Rolls-Royce Spey |
The Rolls-Royce RB.183 Tay is a medium-bypass turbofan engine, developed from the RB.183 Mk 555 Spey core and using a fan scaled directly from the Rolls-Royce RB.211-535E4 to produce versions with a bypass ratio of 3.1:1 or greater. The IP compressor and LP turbine were designed using technology from the RB.211 programme.[1] The engine was first run in August 1984.[2] The Tay 650 had a new HP turbine which incorporated new technology which had been proven with the RB.211-535E4. This engine also had a new combustor for improved durability.[3] The Tay family is used on a number of airliners and larger business jets, including the Gulfstream IV family, Fokker 70 and Fokker 100, with a later version being used to re-engine Boeing 727-100s.