"A standard wet sump engine as found in your 152, chippy and tiger moth will work just as well for inverted/negative flight"
Really?
Sounds to me like a very good way to destroy an engine.
Usually with a wet sump I thought when inverted the oil pressure will gradually fall away over about 10 seconds as the sump has nothing left to pump but air.
The ideal features for inverted flight for any length of time are therefore fuel injection and an inverted oil and fuel tank.
Last edited by Fuji Abound; 30th September 2005 at 19:59.