On Mar 22, 9:20*am, Nyal Williams wrote:
Have you factored out the unairworthy gliders made so by faulty assembly?


Why would anyone do that? Proper assembly is a pilot responsibility
whether he rigged the glider or not. Pilots have the final
responsibility to perform a pre-flight inspection which includes
checking for proper assembly. If a pilot crashes due to improper
assembly, he alone bears the blame. Again, training and experience is
critically important.