Keith7
Posts: 16
Joined: 2/24/2007 From: Sydney, AUSTRALIA Status: offline
|
fgpierce, The wing skins are definitely glassed on both sides, and all composite wings would be, regardless of whether the skins are a balsa or foam layer. Without the inner layer of glass, the skins are very easily deformed by even modest pressure from the outside. Having a glass-balsa-glass laminate is like a spar-web-spar structure; it becomes very much more rigid. The balsa is really only a filler between the glass layers. That's why foam (rohacell etc) can be used as an alternative. Sometimes the inner layer will be done with 3/4oz or 1.5oz cloth, vacuum bagged with a breather layer that pulls off all excess resin. Done this way, the glass becomes almost invisible, unless you look closely. The Tigercat still has quite a bit of resin left on the inner skins, so its quite glossy and noticeable. Keith
< Message edited by Keith7 -- 5/12/2007 12:49:24 PM >
|