Archive of the Yahoo! Groups mailing list for the Bug hand-launch glider 2002-2018

From: "dimple_kwok" <henry.kwok@...>
Date: Monday, September 1, 2003 12:39 AM
Subject: Re: Repost - The best method to make an extended wing and R1?
--- In BugHLG@yahoogroups.com, frans.biemans@w... wrote: > I had the same problem wen I made an extended wing 100 cm. I managed to solve > it with the covering (ora cover light). > Today I've made the first tes flight's wth the Bug (100 cm). Made an super > flight of 2.06 minutes. This flight wasn't from a hand launch. I've launched > it with a string of rubber bands (the smal ones yuo use in the office). > ok. I guess this solve the problem of warping. sounds like it is a common occurence. The warping occur near the root. All the ribs R3-R7 stand flat on the board pretty much, but when they do R1/R2 are lifted off the board (and vice versa). This is why I suspect the position of R1 might have something to do with it... The other problem with R1 of course is the dihedral angle. Even with very careful sanding the roots do not really match perfectly, which is a shame... This is why I asked about the possibility of using thicker balsa for R1 and then sanding them AFTER the wing is finished. Cheers Henry