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Old 11-13-2007 | 03:54 PM
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Cenetix
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From: Wellsville, KS
Default RE: Cedar Hobbies Zero G build thread

The hardware supplied included control horns but no screws, a complete fuel tank assembly, zip ties for the fuel tank, and CA hinges. I supplied the pushrods, screws, and landing gear axles. After I got the horz. stab on I went ahead and installed the rudder and elevator. I don't have any pictures of the glue job, but they were glued to high Heaven! The surfaces were all beveled and pre-slotted for the CA hinges. Everything installed without a hitch, so I was happy. I did have to run my hobby knife through a few of the pre-slotted areas to make the hinges fit easier. A few quick drops of thin CA and they were in solid. There was no binding or overly-large gaps in the surfaces. Don't fly too fast and flutter shouldn't be a problem.

Next was the wings. I did several trial fits with the two plywood wings spar halves, sanding them both to get a snug fit. Make sure you take your time on this. You don't want a fit so tight you struggle to get them on or you may have your epoxy setup before the wing halves are all the way on. I used medium CA to glue the two halves together and then used small clamps to hold everything tight. After the glue was set, I slid the wing halves over the spar to mark the perimeter of the wing halves root rib. I used a magic marker, DOH!, and left a black streak that was hard to get rid of. I should have used my tape again! Slide the wings back off and trim off the covering about 1/4" inside the line you just made. This will expose the bare wood and ensure good epoxy adhesion.

Now, before doing anything else, I turned my attention to the wings and my string. I trimmed the holes for the ailerson servos and once again used the iron to seal them back up. I removed the compartment hatches and then fed another long piece of cotton string through each wing halve, from the aileron servo hole through the root rib on the wing. I ran the string through the forward hole in the fuselage for the carbon tube and tied the two together. Then I mixed up my epoxy in generous amounts, had my alochol ready for wiping up excess, and then epoxied the two wing halves on. Be sure not to epoxy your strings in!. I used a small cargo strap wrapped around the wings from tip to tip pulled tightly to ensure a good bond.

The fuel tank provided seemed good to start with. I set everything up as normal. I opted to use a different piece of fuel tubing for the clunk than the piece provided. It seemed a little small in diameter. I zip tied everything tightly and then used some masking tape to label which tube was which. Now, to jump ahead, it would be my recommedation to replace the tank assembly with a Dubro tank or something equivalent. Maybe it was me just over-doing it, but on my first engine run, the plastic backing piece that goes inside the tank cracked in three pieces when I tightened it. I didn't notice it until I had ran my first whole tank through the engine trying to tune it. No wonder I had issues, it had a vacuum leak! Check the tank!

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