Leaning for high altitude takeoff is always done at full throttle. The reason you can lean instead of running full rich is that the engine can not develop enough power (due to the lower air density at high altitude) to knock and damage itself. Running it full rich at high altitude instead of leaning has some ill effects such as fouled plugs as well as not delivering all the power it is capable of.
David N6359V [EMAIL PROTECTED] wrote: > > Steve, > > Now, if you lean at 3/4 throttle, to get best RPM to compensate for high > altitude airports, then you still get the additional rich mixture at full > throttle, while proper mixture for the altitude adjustment....The economizer > valve (rich mixture ) only operated at full throttle openings. --------------------------------- to unsubscribe send mailto:[EMAIL PROTECTED] _____________________________________________________________ Check out the new and improved Topica site! http://www.topica.com/t/13
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