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

From: John Gallagher <gldrgidr@...>
Date: Monday, December 5, 2011 8:42 PM
Subject: Re: [BugHLG] Re: Thanks!
We are stretching the span, what we need to explore next is a thinned airfoil.  I believe that the S3014 is about 9.5% thick.  Today this is considerred a thick airfoil, especially for a DLG.  Of course the sag between the ribs is thinner than 9.5% so the average thickness is actually less, but I still would like to try thinning the rib airfoil.  It should increase launch height.  The trick is to thin it enough to increase the launch height without thinning it so much that you ruin the thermalling performance.  I'm thinking about 8.7%.   John ________________________________ From: Mark Stephen <mark.stephen16@...> To: BugHLG@yahoogroups.com Sent: Monday, December 5, 2011 10:25 AM Subject: [BugHLG] Re: Thanks!   For my small part in that list, your welcome, same to mpwlad. Next up is a stretched wing, and I do mean stretched. Took the CAD drawing, stretched the panel to 20" and set up false ribs for the widened bays. I would of had this done says ago but life got in the way. If everything works out right, I'll post the hows and whats about it all. Mark --- In BugHLG@yahoogroups.com, "mpwlad" <mpwlad@...> wrote: > > Thanks for the torsion spring tutorial, aft peg placement notes and photos, words on electronics and weight reduction and optimal use of reinforcement instead of ballast extending the fuse slightly, etc by many posters in this group in several message threads! > [Non-text portions of this message have been removed]