October 2012

Experimenter is a magazine created by EAA for people who build airplanes. We will report on amateur-built aircraft as well as ultralights and other light aircraft.

Issue link: http://experimenter.epubxp.com/i/84816

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Page 32 of 47

Lancair 320 This month we continue by reviewing the transition requirements for Family III and IV airplanes. Family III. Air- craft are characterized as having high inertia and/or low drag. Experimental examples includes Glasairs and Lan- cairs. Type-certifi cated examples include the Cirrus SR-22, Cessna Columbia, Piper Comanche, and Mooney M20. Transition Training for Family III Airplanes – High Inertia and/or Low Drag 1. Defined as airplanes that decelerate slowly when power is removed. 2. A typical accident involves pilots misjudging their approach energy, which in turn causes high, fast approaches with their associated long landings. This results in overruns, or worse yet, attempted go-arounds Photography by Jim Koepnick that occur too late in the land- ing sequence. 3. Transition hazards: a. This family of airplanes is on the leading edge of the low- drag design technology. They are beautiful, sleek, and look fast even while sitting on the ground. These airplanes are fast, efficient, and have signifi- cant range; however, unless their low-drag characteristics are adequately managed, they will build excessive speed dur- ing the critical flight phase of approach and landing. b. Unmanaged excess speed can result in overshooting the final approach path and descent angle, an inadvertent stall dur- ing a much-too-late go-around EAA EXPERIMENTER 33

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