Re: Canard load test
David J. Gall
1G in bending (and 1G in shear) in an endloaded condition does NOT equal 4.4G in bending (and 4.4G in shear) in a distributed load condition....
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ASSuming a constant crosssection (depth) spar and a UNIFORM distributed load (no aerodynamic twist, taper, tip losses, etc.) then the endloaded 1G condition will create an equivalent bending moment to a 2.667G UNIFORM distributed load (reference: any basic Statics text). Since the canard carries (arguably) 55% of the load, then the 2.667G figure could (arguably) be divided by 0.55 for a net 4.85G equivalent bending load, but that still neglects the shear load. However, these ASSumptions are nowhere near enough to the reality of the actual canard to qualify as "engineering calculations" nor will ANY calculations ever replace a proper load test on a newlydesigned part like the one in question. David J. Gall, BSAE
 Original Message 
From: "Mike Dwyer" <mdwyer@...> To: QLIST@... Subject: Re: [QLIST] Canard load test Date: Thu, 30 Dec 2004 20:25:47 0500

