Here is my sunbird wing.... but I'm thinking for reinforced more especially in the middle part where attached with the fuselage.
I didn't do anything special when joining the wing at the center. I followed the plans except where folks like Joker said to do different.
I thought about holding the wing on with rubber bands over dowels. The wing is attached to the fuselage with two nylon screws. I thought the blind nuts that came in the kit for that purpose were too small. I tapped threads into the plywood wing hold-down blocks included in the kit. Drill holes to fit the tap then shoot some CA glue down the hole to harden the wood. The tap will cut threads in the wood like it was plastic. Drip some more CA down the holes and chase the threads with the tap again.
View attachment 105695
Jon
I didn't do anything special when joining the wing at the center. I followed the plans except where folks like Joker said to do different.
I thought about holding the wing on with rubber bands over dowels. The wing is attached to the fuselage with two nylon screws. I thought the blind nuts that came in the kit for that purpose were too small. I tapped threads into the plywood wing hold-down blocks included in the kit. Drill holes to fit the tap then shoot some CA glue down the hole to harden the wood. The tap will cut threads in the wood like it was plastic. Drip some more CA down the holes and chase the threads with the tap again.
View attachment 105695
Jon
Year I've had the blunt end stuck into me before and it not very pleasant .☺Looking good!
Be careful with that style pin, I've had that round head break when I'm pushing on it and had the pin's flat end stick in my finger before, not pleasant at all...! Yours may be better quality than the ones I had, but they still make me nervous to the point I threw mine away.
Nice. What are you going to use for hinges on the control surfaces? The hinges that came with the kit were too stiff.
hYou'll be flying your Sunbird soon!
We had some perfect flying weather here last week and I took out the Sunbird. Mysteriously she gained weight over the winter. She now weighed 434 grams, up from 425. Even with the 1000 mAh 3S battery all the way to the rear of the cabin she flew nose heavy. I had to add up elevator or she kept going nose down in the glide. Shimming up the leading edge of the wing probably would've helped. Instead, I took off the 8x4.5 folding prop (29 grams) put on a lighter folding prop, 7x6 (15 grams) from HobbyKing. Now she weighs a svelte 420 grams AUW and the CG is at the rear edge of the wing spar. Nose heavy problem solved and it climbs great with the 7x6 prop. Let's go thermal hunting!
Jon