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Old 05-15-2011 | 08:53 PM
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pimmnz
 
Joined: Nov 2005
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From: Auckland, NEW ZEALAND
Default RE: Flight Trimming the CG

In essence, yes. But with cambered airfoils, because of their poor inverted performance, the best method is the 'dive' test. Simply, enter a 30 to 40 deg dive from trimmed 'S&L', allow the speed to build, then release the elevator. The required reaction from the model is a gentle pull out to S&L. Quick pull out = balance too far forward, steepening dive = balance too far aft.
Evan, WB #12.