I am not normally the one to jump in and discourage someone from trying new ideas, but if he does not know how to calculate the theoretical load limit on a simple box spar with a degree of certainty that it does not need to be tested under actual load and does not know the proper way to test under an actual load either then he should not be building his own design.
That being said, there are several good books he can get on aircraft design and structures that do explain how to design an airplane for the intended loads. More importantly, they will help him from the beginning stages of the design long before he needs to determine if his wings are strong enough. I am in New Orleans for work the rest of the week and my library is at home, but off the of of my head I would recommend Dan Raymer's Simplified Aircraft Design for Homebuilders as a must for general design and performance calculations although not for structural information. Stress Without Tears is good. Check the book section at www.aircraftdesign.com for others. Brian Kraut Engineering Alternatives, Inc. www.engalt.com -----Original Message----- From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net]On Behalf Of Albert Cassar Sent: Wednesday, July 05, 2006 6:53 PM To: KRnet Subject: KR> Re: wing loading test Hi all A friend would like to do a wing load test on his new project which is his own design. the wing spa and WAF are the same as the KR. Would he need to have the aircraft upside down and load it with sand bags or can it be done right side up. If so how do you place the bags (eg) equally over the wing or moor wight at the root of the wing. Thanks in advance. Albert _______________________________________ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net please see other KRnet info at http://www.krnet.org/info.html
