Alvis Leonides.
Stanwell,
Ref the Alvis Leonides on the Twin Pin, in my time on 21 Sqn I don’t remember too many issues. I remember an event when we had to leave one at Habilayn for the fitters to repair on site, but I cannot recall the exact problem. I do remember several fire warning alerts (but no actual fires). One event was easily diagnosed on site where an exhaust stub on the collector ring around the rear of the engine had blown a cap fitting allowing exhaust gases to heat a fire warning wire, so perhaps the fire warning system was a cause of other events too. We also had a return ferry to the UK stuck in Baghdad for an engine change I seem to remember, but the ferries were usually OK. Considering the environment and the regular intense sand blasting of the Leonides I think they managed OK, but I’m sure someone out there with greater engineering knowledge will be able to add more detail.