>> Red Herring. >> Various high performance aircraft of past ages, and some today, use >> water injection to assist top end performance :-). > Usually to delay the onset of detonation via charge cooling, enabling > higher supercharger boost pressures. Approximately, yes. But you didn't mention the Herring. R --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .