RE: [RCSE] Vacuum bagging and leading edges.
John, I'm new at this so please excuse the stupid questions. How do you hold the Kevlar against the leading edge? Vacuum bag? I presume you epoxy it there? Do you first put the Kevlar on the leading edge and then apply the epoxy or do you wet the Kevlar and then put it on the leading edge? What do you put on the outside of the Kevlar while it cures - Mylar? TIA, Curt Thompson Seattle, WA, USA -- From: John Jenks [SMTP:[EMAIL PROTECTED]] ...now I leave the foam LE and cover it with 1" kevlar tape 1/2" on top and bottom the day before I bag the wing... RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]
[RCSE] Vacuum bagging and leading edges.
I am having a great deal of trouble getting a decent leading edge on my vacuum bagged HLG wings. I cut the Mylar about 1/8" short of the leading edge. I apply a 1" wide strip of 1.5 oz glass cloth to the leading edge with 3M super 77 spray and then wet out the glass with a brush and scrape the excess off with a plastic card. I then wet out the glass on the Mylar and place it around the core. The Mylar is cut about 1/8" short of the leading edge. I then cover the Mylar, including the exposed leading edge with hand towel paper as a breather and the whole lot goes into the vacuum bag. When set, the leading edge seems to require a lot of sanding and I usually end up exposing the core in a number of places. I have also tried using peel ply over the exposed leading edge but this seems to leave it too dry. Next I thought I would place nothing over the exposed leading edge, instead relying on the vacuum bag to give me a nice surface. Can anyone offer me any suggestions? If I cant just sort out the leading edges I will have myself a set of beautiful wings. Michael Melbourne, Australia __ Do You Yahoo!? Talk to your friends online with Yahoo! Messenger. http://im.yahoo.com RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]
