Thread: Discussion Plank 101
View Single Post
Old Sep 30, 2012, 01:33 PM
Knoll53 is offline
Find More Posts by Knoll53
less is more
Knoll53's Avatar
United States, CA, Marina
Joined Sep 2006
3,246 Posts
Great Mark. Good idea!

I'm using .231" diameter fiberglass filament wound epoxy tubing. I could easily wrap it with some kevlar cloth at 45/45 to add torsional strength and rigidity. Because the tail boom is so short, the torsional deflection should be small. I'll start off with the solid CF core version. I wouldn't imagine that I'll be able to get much rotational force on the fin with the discuss launch with such a big wing. I'd think that using the fin as a handle for bungee launches would induce more bending on the tail boom. So strong and flexible looks attractive at this point.

I fully expect that this tail boom is the most vulnerable to damage part of this plane. We will know soon enough.

Knoll53 is offline Find More Posts by Knoll53
Reply With Quote