msm9724

Hi, i bought a U chanel of this size, since it was the smallest one i found, what do you guys thinck, is *** to big? I will probably make holes to the chanel to make it lighter, would this work?

Thanks a lot

Marcelo

msm9724

Someone help me please what do you guys thinkf of this , will it be to heavy?

Thanks

Marcelo

3d-aholic

My Feedback: (7)

I think you can make anything work. Add more power by going up to a .52 or .60, drill some holes.

There are no limits in Spad. I think the tough time will be figuring out how to get the front part of the wing over this size tube without getting a huge cord change. Well unless thats ok with you.

novabill

Sounds heavy, how much does it weigh? It's 2.5" wide, but how tall are the sides?


You could swiss cheese it up real good to get the weight down. It will work. Anything will work. Just try to keep the weight down.

WILLIAM

msm9724

Yes, it is 2.5 wide and the sides are 1.2 cm tall.
Thanks a lot for the replie, i will make some holes and see how it does

Marcelo

novabill

Swiss it up and make it per plans, except increase your wings to 34" make a motor mount to fit in the channell.

I think it will be cool
WILLIAM

P.s. pics and build report

msm9724

Thanks William, but what do you mean by swissing it up[].
So I should add two more inches of wing, is that correct?

Thanks Marcelo

Col. K0rn

My Feedback: (1)

He means that you need to use a hole saw to cut multiple holes in the sides of the channel, so it looks like Swiss Cheese.

msm9724

Thanks

novabill

Yeah,

Cut lots of holes. Sides and bottom.
As fars increasing wing span, bigger is better. Remember, a two inch increase in WS=36-38 sq " in wing area. More weight means you need more wing area. 36" with a 32" fuse would probably work, that's 72-76" more sq".

Here's what you do,
.5. make your plane 36" wing span
1. Make more and bigger holes in the rear of the fuse.
2. Make your motor mount long enough to mount your engine with your tank on it right behind the engine, thus giving you an x-tra 2" fuse length (approx).
3. butt your wing up to the engine mount.
4. If you have access to a drill press' run your middle music wire through your fuse appx 2" back from the plans (see spa3dt update)
5. Use your servos and battery to achieve proper balance at 6" (to start) from the LE.
6. If wou end up with a weight problem from from the larger channell' this should help. What you are trying to do is increase the wing area to make up for the weight and get the plane to balance.
7. Use 5/32 mw for your LG. with ultra light foam wheels and do'nt put a tailwheel on. Instead' use a skid made of pvc judt like you make the horns.
8. You might even make some 45 degree brackets out of the pvc to mount your rudder in the center of the channell. (or how about 1/4" nylon bolts through the channell screwed into the flutes)

It will work.
Just remember save weight where you can and think about the placement of your radio equipment for balance.

My father just moved back to the states, he was living in Jaco (I think that's how you spell it) lost all his money when the governmant closed down the brothers. From what I've heard, Costa Rica is a place I should visit. He said It's My Style.

Let me know if you need more help' I'm here
William[8D]

msm9724

Thanks a lot for all the help, sure you have helped me a lot, Costa Rica Is a nice place to live in. I just flew the PBF today and it was very cool to fly it (Incredible).
thanks again

Marcelo[:@]