pm sent

I aked lastnight about that wing tube and they coulnt tell me for sure it would fit

Mine measures 18.5 mm diameter x 480 mm long with a wall thickness of approx. 1mm.
I intend to replace it with a 19mm diameter x 1.2 or 1.5mm wall thickness alloy tube of appropriate grade.
The original tube i have is dodgy,it is oval in section by .3 mm and the wall thickness varies by .3 mm so in part of its diameter it is only .7 mm thick.
It is a very sloppy fit in both wings and the fuse.The replacement 19 mm tube will fix these issues nicely.

I actually wrapped my tube in clear packing tape to built up the diameter and fix the sloppy fit. Mine wasn't oval, but did have quite a bit of play in the fuse portion as well as the wings. I was going to suggest buying a wooden dowel. I dont think the weight would cause a huge issue since it pretty close to the CG.

Well mine is not usable at all like i said i bought it crashed well upon gettign it home and inspecting it I discovered it was at least its seconnd crash on the first they accidently epoxied the wing tube in place off center and instead of tapping on the phenolic tube to get it to release they just cut the wing tube down so it only sticks about an 1.5 maybe 2 inches into the wing. deginetly not going to work with the kind if flyin I do.

On another note I have had a few of these planes and found that some of the problems I have had were with the throws or rather lack there of. On my old 80 inch edge I had to remove the rudder and stabs cut the tri stock off and rebuild it so I actually got a little more then 45 degree of throw. I had one of the big name pilots look at it for me while he was out here for an event and explained to me about dead area in the throws.

Now to the current time a friend of mine has one ofthese on electric and did the same with the surfaces and it flies incredible , well that and a few other tricks like eliminating the silly carbon tube for the elevator. So thats why i picked up the crashed one I couldnt bring myself to mod a brand new palne. but it will be a little bit as I have to rebuild the 2 formers for the gear and do the landing gear plante repair first and still deciding whatmotor to use. Been thinking about using the moster power 60 motor on the nitro website as the little extra weight out fornt will help offset the servos at the tail but not sureyet

I thought about placing elevator servos in the tail and may still do that yet,however,after reading this thread and the out come of this model seems to have a tendency to be tail heavy i fitted servos in the standard location untill its all fitted up ready for ballancing and will see from there wether its a viable option as i naturally dont want to add any additional weight if possible.
Crikey,1.5 - 2" of tube in the wing would be an accident waiting to happen for even basic flight.Can well understand your concern there.

I am goign to go the same route and wait till its all built to see where it balances but I dont think it will be an issue being electric cause if its necessary i can always build a battery tray right under the motor mount. If youre very careful with servo selection would also help as im looking at mid size servos that weigh only an ounce but have 67oz of touque that should provide plenty of power for each elevatorlike these

http://www.servocity.com/html/hs-225mg_mighty_mini.html

http://www.servocity.com/html/hs-5085mg_servo.html

http://www.servocity.com/html/hs-524...ital_mini.html

Those servos are something to consider,thanks for the links.At the moment acquiring a replacement wing tube is proving more difficult than first thought,unless of course i wish to purchase a 6 metre length.The hunt continues.

I actually considered and would of done the same as you with the packing tape.Except i dont trust my tubes integrity being only approxiamately .7 mm thick for almost half of its diameter.And the stuffing around of sanding a dowel to fit did'nt appeal when i thought obtaining a replacement would be easier and fix all the problems with it.Except,getting hold of the replacement is proving harder than i imagined !.

Performance Metals Australia replied back to me this morning and can provide what i need in the recommended grade of 6061-T6 and will post direct to me,and,for a very good price.Actually less than the cost of postage.Thanks fellas.
Once installed i'll have piece of mind in that area.

Boy do I understand that feeling I have gotten almost to the point of stopping work on this til i get the parts I need

GD

read this link with interest, bought the blue one and is still in the box.
what I'm missing in your stories is the second tube in the main wing.
I fly a Xtra 2000 with 26 petrol engine and wanted a more fun plane next to it.
The angle of attack can vary with only one tube and 2 little bolts, specially if they are not tight fit.
My Xtra has two tubes and only one bolt for holding the wing to the fuselage.
In the manual I can not find what the angle should be.

anyone has a clue

Either you have a differnt model or this is somethign new for them, when did you order it? i have seen a few of them and there is only one wing tube not 2

Yep mine has one , but I wonder why there are not two tubes, now the wing can vary in angle of attack.
This can have major impact in flipovers. will make a second tube in the plane.
I try this one with a thunder tiger 61, but still a lot to do.
Glue and sand and inspect again as this link give me much info.
Hope that I can have fun with the plane

Can this airplane be a capable 3d flyer with the right engine? Or is the wing area too small and the weight too high?

I dont think that even with the right engine it could be capable of 3d. The wing area and weight would be the reason.

Thats just too bad Such a good looking model!

here is a pic. of mine.....notice i made the droop tips for it....extras look unfinished with a squared off wing tip....also....no down thrust.....i gave mine 3 degrees right. i power mine with a scorpion 4025-12 brushless outrunner 15 x8 apc prop....4250 lipo...futaba radio and bb servos. 3 inch mpi wheels as i fly off grass. any other folks ever use droops on a 330? will certainly help the tip stall factor!! in my opinion....the extra was never finished.....take a look at the lancair.....its a hipo airplane....it has droops. of course this is just my opinion.....and my airplane.

That looks great. What does it weigh with the battery?

Can you give us a close-up picture of the wing tips? I would be interested in making some for my 330 if they aren't to terribly difficult. I run mine with about 1 degree down-thrust, and 3 degree's of right thrust.

7.6 lbs.....i didnt use any down thrust.....just right 2degrees. you can go to great planes.com......look for the droop tips for a lancair....or tower hobbies....do a search for wingtips....i can take closeups with my junkie hp camera.....sorry?

About hoovering, it was my intention to do so.
For what you need wings in vertical? only ailerons to prevent rotating
all planes hoover with enough power and balance. On U tube I say a while ago a calmato standing on it's tail and started straight up.
If the pilot can hoover, the plane can it too.
today I took it out of the box and started almost crying. you told already that the main tube was slightly loose, thats correct.
My rear tube is completely out of line, right rear wing is 2 mm in front of the left one and compare with the main wing it's 9 mm out.
for sure I'm not in the air soon with my 330.
The balance bussiness is still farr away for me, somewhere in the beginning of this link you where talking about CG.
I think this 110 mm at root is ok. In the drawing they talk about 90-96mm from leading edge, but this is measured at 360mm from the centre of the fuse.
If you bring this back to the root the CG is in the tube (forward).
Anybody has measures at what height your CG is? Is it in the wing or above/below?

Yep, all planes can hover if the pilot and the engine permits it. But you dont just need power for hovering, large controll surfaces is also needed, specially on the rudder and ailerons. Is it even possible to do a knife edge with this airplane? 7lbs I way overweight for a plane of that size.
It looks extremely nice though, and I`m sure its a good flier

first of all.....its not hoovering......learn to speak the ENGLISH language....i cant understand your reply at all.

`was that to me, or post 120?

Give us the correct english, as I'm just a dutch.

I understood your post perfectly clear