Kevin asked:
* How much difference in GW is there between a Metal wings * versus Rag wings. Kevin, Rag wings are preferred by almost all of us. For the majority of rag versus metal wing weights I've heard over the decades, the difference is close to 40 lb. The rag wings make a very nice, smooth surface. Mine were often mistaken for being metalized, they were so smooth. But, there were no rivets. To me, one of the biggest advantages to rag wings is that from time to time the fabric is removed and ALL the structural flaws underneath are WELL inspected and FIXED. Of course, this worked better with 4-5 year grade-A cotton, but even with "lifetime" modern fabrics I'd still remove the fabric every 20 years or so for a thorough inspection and touch-up. I've participated in a wing recovering as part of an aircraft maintenance class and it was good. Having brought up the subject of structural faults, I know of no Coupe ever lost in flight from structural failure except a wing with hidden accident damage and Coupes that had been used for aerobatics. Coupes are NOT designed with the strength needed for aerobatics. If Bob Hoover is flying the aerobatic routine in a Coupe, I'll ride along. But if it's only Chuck Yeager flying, I'll watch from the ground, thanks. Aerobatics should NOT be done in planes not designed for them. My firm and emphatic opinion! Ed
