Originally Posted by
DaveUnwin
Thanks Dave & Allan, all useful stuff. Interesting that it clearly still has a Gypsy engine - as a sprayer I'd assumed that part of the conversion was to fit a better, more powerful engine.
Wikipedia suggests "Chipmunk Mk 23 Five converted T.10s powered by
de Havilland Gipsy Major 10 Series 2 engine and with agricultural spray equipment."
without putting a date to it. Whether the Gipsy Major 10 Series 2 or the Lycoming O-360 is the "better" engine is not for me to say, but they were 145 b.h.p. and 180 b.h.p.