|Rolls-Royce Tyne installed in a Luftwaffe C-160|
|First run||April 1955|
|Major applications||Breguet Atlantic
The Rolls-Royce RB.109 Tyne is a twin-shaft turboprop engine developed in the mid to late 1950s by Rolls-Royce Limited. It was first test flown during 1956 in the nose of a modified Avro Lincoln. Following company naming convention for gas turbine engines this turboprop design was named after the River Tyne.
Design and development
Designed in 1954 by a team under Lionel Haworth and intended as a more powerful alternative to the Dart, the RB.109 Tyne was initially designed for a power of 2,500 shp but when first run in April 1955 the engine far exceeded expectations and was soon being type-tested at 4,220 shp. The Tyne was developed primarily for the four-engined Vickers Vanguard airliner, the prototype first flying on 20 January 1959 equipped with four Tyne Mk.506 of 4,985 e.s.h.p. Production deliveries of the engine were made from mid-1959 onwards to power the 43 Vanguards delivered to British European Airways and Trans-Canada Airlines.
The engine was further developed with greater power and used in the later twin-engined Dassault-Breguet Atlantique long-range reconnaissance aircraft; also in the Canadair CL-44 and Transall C-160 transport aircraft.
A single stage HP turbine drives the nine-stage HP compressor. A three-stage LP turbine drives the six-stage LP compressor and, through a reduction gearbox, the propeller. The combustor is cannular.
The Mark 515 Tyne had a nominal takeoff power output of 5,730 hp (4,273 kW) equivalent power, flat rated to ISA+16.8C.
- 4,370 hp (3,259 kW) fitted to Vickers Type 951 Vanguard and Vickers Merchantman.
- 5,064 hp (3,776 kW) for Vickers Type 952 Vanguard
- 4,616 hp (3,442 kW) for Canadair CL-44
- 5,399 hp (4,026 kW) for Short Belfast.
- RTy.20 Mk 21
- 5,667 hp (4,226 kW) for Breguet 1150 Atlantic and Breguet ATL2 Atlantique
- RTy.20 Mk 22
- 5,670 hp (4,228 kW) for Transall C-160
- 4,860 hp (3,624 kW) for Aeritalia G.222T
- 6,035 hp (4,500 kW) for Transall C-160 and Breguet ATL2 Atlantique
- projected military use engine rated at 7,075 hp (5,276 kW) equivalent
- projected military use engine rated at 8,400 hp (6,264 kW) equivalent
- Mk 801
- Mk 45
- Marinised ship powerplant
- Essentially similar to the RM1A
- Essentially similar to the RM1A
- Aeritalia G.222
- Avro Lincoln (testbed)
- Breguet Atlantic
- Canadair CL-44
- Conroy Skymonster
- Short Belfast
- Transall C-160
- Vickers Vanguard
The marine version, the Rolls-Royce Tyne RM1A, RM1C and RM3C remained in service as the cruise gas turbines in Royal Navy Type 42 destroyers and Type 22 frigates until the retirement of the 4 Batch 3 Type 22 frigates (2011) and the last remaining Type 42 Destroyer (2013).
Engines on display
Specifications (Tyne RTy.20 Mk 21)
Data from Jane's All the World's Aircraft 1962-63.
- Type: Twin-spool turboprop
- Length: 108.724 in (2,762 mm)
- Diameter: 55.12 in (1,400 mm)
- Dry weight: 2,391 lb (1,085 kg)
- Compressor: Axial, six-stage LP, nine-stage HP
- Combustors: 10 cannular flame tubes
- Turbine: Three-stage LP, single-stage HP
- Fuel type: Avtur
- Oil system: Pressure spray/splash with dry sump using DERD 2487 spec. oil
- Maximum power output: 6,100 hp (4,549 kW) equivalent power
- Overall pressure ratio: 13.5:1
- Air mass flow: 46.5 lb (21 kg)/sec
- Turbine inlet temperature: 800 °C (1,470 °F)
- Specific fuel consumption: 0.485 lb/hp/hr (0.298 kg/kW/hr) for take-off
- Power-to-weight ratio: 2.55 hp/lb (4.194 kW/kg)
- Comparable engines
- Related lists
|Wikimedia Commons has media related to Rolls-Royce Tyne.|
- "Prop-Jet Economy" a 1959 Flight advertisement for the Tyne