I am working on the center section of my rc airplanes wing. As you can see here I am test fitting the wing ribs to the spar and spar web. Test fitting the ribs to the spar will ensure that it all goes together properly before you glue it together.
This long flying, long range drone now includes a three axis stabilized gimbal, a larger battery for longer flight time, and an optional PA megaphone speaker for crowd control ;-)
