Steve:

Some of the Mustangs had N2O, Meth-water injection on the Rolls-Royce Merlin engines, probably built by Packard in the USA, and based on Ricardoīs investigations, no nazis I think; For some years now some way out guys are fitting the Griffon (V16 instead of V12) engines, originally used on the AVRO Lancaster bombers, (no relation, I think), and others, with counter-rotating props, that could be a trip in a single engine 5000HP plane; letīs get back to Lansing.