Thread: Discussion Cord vs Span
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Old Jan 29, 2013, 10:11 PM
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Australia, WA, Perth
Joined Jun 2005
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Back in the 50's Steve Whittman figured out that a low aspect ratio, wide chord wing could be made to fly pretty damn fast, which became the basis for the bonzo, dfr and tailwind racers and a bunch of other 50's and 60's racing design. They're not only quick, but easy to build, (constant chord) and can be built in a household workshop. Important stuff!

Fast forward 50 years and with mode detailed CFD programs, specialist airfoils and planforms have increased on that efficiency, but at the cost of making them much harder to build, and correspondingly more expensive.
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