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Old 09-04-2006 | 09:59 AM
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Rcpilot
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Default RE: Sig Ultimate Fun Fly

It's NOT a 3D plane.

It is a nice sport plane.

You've got 2 wings to build and cover. Pay special attention to the TOP and BOTTOM of each wing. There are subtle differences in the wings. The kabane mounting tabs are on the bottom of the top wing and they are on the top of the bottom wing. [sm=tongue_smile.gif] The ribs are cap stripped on both sides, so lots of cap strips to install.

The tail is just sticks. Pin them down and drop some thin CA on them. There is a hardpoint in each elevator and one in the bottom of the rudder.

The fuselage is pretty easy. Balsa is pre-shaped and you just glue a couple lite ply doublers to it. It's been a long time, but I think there was a couple basswood rails that had to be glued in for the motor mount.

I used a standard servo for the rudder and mounted it in the tail. I also used dual elevator servos and mounted them in the tail. The elevator servos were Hitec HS-81. I put a Hitec HS-81 on each aileron as well. Plans call for a single aileron servo and linkages to work the top wing.

I had an OS61Fx on mine and it wouldn't hover. I was turning a 13-4W with the 61FX on 10% fuel and it would just slide back real slow. I'm in Colorado though. You might have better luck at lower elevation.

Is it going to be fun with a 46FX? I wouldn't do it. I don't know how well your engines run at lower elevation, but I just can't see a 46 doing more than dragging it off the runway and flying it around like a trainer. It wasn't that hard to put the 61FX in there.

If you want a 3D plane, you'd have to increase the size of all the control surfaces and slap a big motor on it. Look at the Tower .75 engine for $100. That would haul it around with plenty of authority. But, it's wasted weight and money of you don't modify the tail surfaces.

Good luck