James, I always put the fillets on after the carbon/covering. I want the fillet to cover the covering/carbon at the wing fuse joint and stab fuse joint. If not you could case a stress riser and crack the wing or stab. I have seen it where the carbon was put on after the wing was installed and fillet put in place. A few flights in and outboard wing blew off in a hard corner. Yes it blew off and let go from the flap horn and floated to the ground. The model was flown out level and the drive train was saved. It was not cool.
I would go further than that, you want to cover the wing (with either silkspan, polyspan, or carbon) before you install it in the airplane.
I would go further than that, you want to cover the wing (with either silkspan, polyspan, or carbon) before you install it in the airplane. Brett
The first fillet I install is a fillet is on the inside of the fuse then apply top and bottom block finish sanding and tissue of fuse then the outside fillet is applied over the top of everything.
I would go further than that, you want to cover the wing (with either silkspan, polyspan, or carbon) before you install it in the airplane. For the very same reason, just putting it up to the fuse creates an additional stress concentration right at the fuse side, which is loaded anyway. The New Jersey guys blew airplanes apart regularly when they started using St60s (and creating heavy cornering forces for the first time ever). They ended up with all sorts of strange reinforcement like Windy's elliptical patches on foam wings, but still applied the silkspan to the completed airplane. Brett
Topic: Super Fil Fillets (Read 2090 times)