Rolls-Royce Report on Spitfire IX J.L.165 with Merlin 66 ... XX beat and — new aneroid to at the...
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Rolls-Royce Report on Spitfire IX J.L.165 with Merlin 66 ... XX beat and — new aneroid to at the and eoatat for (b) (o) Eduction a spitfire 108—9" propeller and tropical of alr