Originally Posted by
DHfan
I know virtually nothing about gas turbines, but I do know that the Vipers in the Shackleton MR.3 ran on Avgas because it was carried for the Griffons.
I "may" have read that they could only run on it for a limited time, possibly because of jet pipe temperatures. On the other hand, that could be complete gibberish.
I can't recall the detail but during my time at Hatfield ('56-'93) there was a report that a 125 had been refuelled with AVGAS as nothing else was available. It went well and it seemed that the insides of the tailpipes went the tasteful grey that we motorists knew and loved in those days of leaded petrol