Cold War Relics-Rolls Royce Pegasus Turbofan Engine

[Donaldson1]

[Dougs]

Wow made so many parts for the Pegasus never thought it would be called a relic, an awesome engine.

[Sooty655]

Wow made so many parts for the Pegasus never thought it would be called a relic, an awesome engine.

......and don't you just love the way it's called a "Rolls Royce"

RR's idea of VTOL was a load of separate lift engines which were excess baggage for the rest of the flight.

It's a BRISTOL Pegasus, whatever it says on the nameplate.

[Vulcan Bomber]

Front end started out as salvage from an Olympus didnt it?

[Mayfly]

Wow made so many parts for the Pegasus never thought it would be called a relic, an awesome engine.

Reminds me of my trip to the RAF Regiment a couple of years ago at Honnington, we looked around their museum and a lot of the small arms I trained on were museum pieces.

Interesting thanks.

[Sooty655]

Front end started out as salvage from an Olympus didnt it?

Not exactly salvage, but to prove the concept the first Pegasus used the front two stages from the Olympus LP compressor (as the fan) on the front of an Orpheus (as the core), with a second turbine on the back to drive the fan.

The Pegasus was ground-breaking in many ways. Apart from the obvious VTOL aspects, it was also the first high bypass engine, first overhung fan and first to dispense with inlet guide vanes.

It originated from Bristol's rejection of both the RR separate lift engines approach and the shaft driven lift fan concept now being used for the F35.

[Dougs]

Front end started out as salvage from an Olympus didnt it?

Not exactly salvage, but to prove the concept the first Pegasus used the front two stages from the Olympus LP compressor (as the fan) on the front of an Orpheus (as the core), with a second turbine on the back to drive the fan.

The Pegasus was ground-breaking in many ways. Apart from the obvious VTOL aspects, it was also the first high bypass engine, first overhung fan and first to dispense with inlet guide vanes.

It originated from Bristol's rejection of both the RR separate lift engines approach and the shaft driven lift fan concept now being used for the F35.

funny how things go the F35 lift fan is now being made at the "Bristol Sidley" site in Filton