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Hummel We Go Along I just received the January 2009, KITPLANES and was surprised...

As a new kit builder, you may have wondered about that gold-colored AN hardware...

Ultimate experimenter Paul Lipps has used his own homebuilt, a Lancair 320, as a test bed for his many innovations, which include reflexed flaps, an ultra-long pitot tube for more accurate readings, a solar-powered fan for the cockpit, a cowl scoop for ultra cooling of the magneto, extremely close clearances between the spinner and the prop, and a one-of-a-kind propeller.

Airplanes are surprisingly flexible, and changes in their shape can affect aerodynamic characteristics. Barnaby Wainfan explains how the two are coupled.