One wonders how much technically further ahead we would have been if Bristol Siddeley had taken over Rolls Royce rather than the other way round.
The technical challenges of Pegasus and Olympus were both Bristol products, as were so many others.
I've had several ex-Bristol staff tell me that if their engineers had been given a look-in, the RB211 would never have been such a monumental f'up in its early days