seagull61785 wrote:
Years ago somebody told me that the RAF's F4 Phantoms, which were powered by the Rolls-Royce Spey engine, were limited to a top speed of around mach 2 (I think).
The reason I was given at the time was that if you kept the throttle wide and the afterburner engaged, then the aircraft would 'accelerate until it disintegrated'.
My question to the WIX experts is this - Was this statement just a load of old Baloney? Or was there an element of truth in it?
Thanks
Barry
Yes, baloney.
The Spey was a superior engine. The Spey engined Phantom had a 30% shorter take-off distance, 20% better acceleration and climb.
One of the trade-offs was the wider fuselage and flaps and slats caused increased drag, so the top speed was reduced.
My cousin worked RAF Spey Phantoms, the engine was far more reliable mechanically than US engined Phantoms.