Ken Erickson
Posts: 308
Joined: 12/17/2005
From: Columbus,
IN, USA
Status: offline
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Assembling the Skyraider.
I put them together just like the manual says, except I replace the JIS machine screws with Socket (allen) head. 18 X 3 mm to attach the mount, 23 X 3 mm to mount the engine, and 4 by 25 mm for the wing bolts.
If you want to have nylon bolts break away if you drop a wing on landing, anything larger than #6 SAE will not do it. One of our guys is using #6 SAE nylon wing bolts with the Ball Bearing engine, and has had no problem. They do shear in a cartwheel. Of course, he went to the work of replacing the blind nuts.
With everything as the manual says, and an LA mounted flush with the front of the mounts, the plane is slightly nose heavy in flight with a full tank of fuel. This is very apparent, if your engine quits at 15 feet while taking off. To stabilize flight when racing, I use a 1/2 oz Harry Higley nut. Very small control movements, very. Dual rates helps a lot.
My antenna is mounted by installing the receiver and then making a 1/16th hole in the bottom of the bulkhead at the back of the radio compartment. I insert an inner nyrod into the front hole for the bolts which hold the fin and snake it forwar up to the 1/16th hole. Then I feed the antenna into that inner nyrod a goodly distance and gently pull the inner tube/rod out of the airplane. This leaves a couple of inches of antenna sticking out that hole. I do not use thread lock on the fin bolts, as I might want to use the fin for spare parts later. A piece of tape covers the holes, and holds the antenna to the rear of the fuselage. Check the fin bolts before each day of flying.
The upper blocks holding the landing gear have been quite soft wood. A rough landing will cause them to lat the top part of the wire move around. When this happens, I replace all three blocks with pieces of 1 1/2 in by 3/8 in Oak from Lowe's. Home depot did not have this size. You need to cut the fuselage sides to allow the bottom block. The side blocks, 1 in high X 1 1/2 front to back and 3/8 inch wide are fitted, a hole drilled and a #4 by 3/8 mettal screw used to hold them in place while the epoxy sets, then the bottom block is epoxied in place. Previously , I had I used a Dremel Router attac |
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RE: Club 40 Racing Hangout - 
