RB.106 engines would transform Scimitar and Sea Vixen performance

How would the RB.106 engine affect the Supermarine Scimitar and de Havilland Sea Vixen?

Both would gain power and likely reliability, while Scimitar would become exceptionally fast with afterburning thrust.

The proposed Rolls-Royce RB.106 would give both naval aircraft a major increase in power and could improve reliability over their historical engines. An afterburning RB.106 would make the Scimitar exceptionally fast for its role. Even if Sea Vixen did not initially receive reheat, the aircraft's pilots and engineers would probably press for a later afterburning modification once the performance margin became apparent. The counterfactual turns engine selection into a question of speed, reliability, and later modification.