ORIGINAL: Rube Goldberg
I was with Vernon Montgomery down here in MS today for the flight of his Bobcat and the 3rd and 4th flight on my yellow Long EZ 46 I bought from Raidentech. I did a copy and paste from the Long EZ thread here:
It was also an afternoon for the maiden flight of a fellow club members new "Bobcat" ARF----he used an OS 61FX for power and it really scoots! Word of caution though with that one---apparently they intended for the builder to epoxy the wings onto the fuselage---it uses an aluminum wing tube and small rod (similar to our Long EZs but the small rod is near the leading edge of the wing) yet has NO connection for the wings to the fuselage! While running the engine up on the ground, at full throttle the left wing would seperate from the fuselage about 1/2 to 3/4 inch and stay that way until power was reduced to idle, where the left wing would then slide along the tube/rod back to the side of the fuselage.....and the right wing would then move out the 1/2 to 3/4 inch away from the side of the fuselage! They wound up putting a #64 rubber band around the fuselage pushing it back over the leading edge of the wing to fly it.
And since you guys with the Bobcat are discussing methods of fixing the wings to the fuselage so you can dismantle the plane, and seeing Vernons' Bobcat today, I thought about the method used in my Sig Somethin' Extra----cut a slot in each side of the fuselage just a bit behind the leading edge of the wing, and screw in and CA a "J" hook to each wing, then use a rubber band between the J hooks to keep the wings tight against the fuselage. That oughta be a simple fix, ya think?
Dave (as in not the brother of Carl!)
One thing Dave, Vernon had to change is CG from 9 to 9 3/4 inch. from the LE. When he came in to land with the CG at 9" the Bobcat ran out of elevator and the plane pancake into the runway. With the CG at 9 3/4 from the LE it was perfect.
The 61fx fly's the Bobcat but Vernon and i thinks that the OS 91 fx with the same weight and more power will be the perfect match for the little Bobcat, thats what i am going to put on mine's.