I am filing in the open cavities on the elevators with contractors foam and then glassing over the top of the foam and filling/sanding them smooth. The reason for this is twofold, first, for aesthetic reasons, second for speed improvement. This should slightly cut down on parasite drag to give me a cleaner airframe. It has been done various ways by lots of builders with good results in the past. I was somewhat worried about moisture getting trapped inside and causing corrosion. To combat this, I primed everything first. I also am using contractor foam that is guaranteed not to retain moisture. My examination of it seems to show it is very resistant to water. I figure, worst case scenario is I will be rebuilding my tailfeathers in a couple years because of cracking or corrosion! :) It will be something I keep an eye on as the airframe ages.
Edit (08/05/10): This mod idea turned out to be no good and I had to remove it. I couldnt get the AN3 bolts into the hinge brackets...whoops. Oh well, every idea is not going to be a success! :)
No comments:
Post a Comment