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Old Nov 26, 2004, 10:32 PM
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United States, NV, Henderson
Joined Aug 2004
269 Posts
This is straight out of Model Airplane News " Basics of RC Model Aircraft Design".
Tapered wings (planks) with a tip cord 40% of root comes closest to the IDEAL elliptical planform in both induced AOA and induced DRAG.
Delta wings are low aspect ratio "flying wing tips". The wings stall at a high AOA, but with HIGH induced drag and vortex flow.
IMHO the plank is simply a superior planform. Less drag, no stall, and extremely responsive.
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