The P1154 was tied up with CVA-01 and if it had gone ahead its such a different Royal Navy we would have had the current mass cuts 10 years ago…
The P1154 was developed in two versions, one for the RAF and the other for the RN. The RAF version had a radar and a nav system like the Sea Harrier so was far superior to the Harrier, Jaguar and Harrier II despite its much bigger engine and performance capability. The RN version had two Speys, a big SARH illuminating radar and a WSO. It was basically a Phantom that could do VTOL.
It’s arguable if the P1154 cost more than redesigning the Phantom, building them plus Jaguar and building Harriers. As to the utility of the Buccaneer and Vulcan they were both not combat survivable against a serious Soviet threat in the 70s and 80s. The RAF would have suffered hugely if it had to fly Canberras and Vulcans against the Soviet air defences in the 1970s.
Back to VTOL and don’t forget the AV-16 with the bigger Pegasus 15 engine. This was the real Harrier II project to produce a Harrier able to fly twice as far carrying twice as much (2x AV-8 = AV-16). It was also to provide the Sea Harrier capability. But was cancelled by the UK in 1975 because they lacked the money to support it.
1974 | 1545 | Flight Archive