Keno
Well-known member
I am impressed with your long easy. Go with the symmetrical I am not sure of your wing thickness I used 3/16" thick for spars maybe it has application for you long easy. I found for the fold if you hold down on the trailing with wing sitting on it bottom and then watch the leading edge as it comes up you may have to apply a bit of pressure on it to achieve symmetrical. For these plane types symmetrical/semi symmetrical is best. I removed the paper from the inside less the ailerons and found it helps with fold and remove unneeded weight. Maybe this info can offer you with some ideas, maybe good or bad as you may find them. I really liked you video your long easy flight YOU HAVE A WINNER.
FlyingCurry
New member
Hi Jason
Did you use the same fuselage as the first model and just change the wing?
Thanks
Ian
Did you use the same fuselage as the first model and just change the wing?
Thanks
Ian
jpot1
Elite member
CarolineTyler
Legendary member
This is definitely my next model plane, love the Burt Rutan aeroplanes 
FlyingCurry
New member
Looking great Jason. Do you prefer the fold over wing to KF airfoil, or is it that the fold over wing has greater strength?
jpot1
Elite member
All about the strength. My fault for not adding enough spars on the KFM wing but at the tips I could bend it up 2-3". I was concerned about folding a wing.
The negative is that this will be a little heavier. Positive is that there is little to no flex and I can hide the servo.
I maidened mine this weekend... it went badly.
Very Badly.
I'm sure with SOME (read Lots) of glue, and adding tape, I may be ready again by the end of the week.
I must have had the balance wrong. 1.25" behind the point the main wing hole.
Based on some other source it's near the front extender pieces. Well this time before I motor-up I will glide it, into long grass.
I still love the look of this plane and it is Very simple to build.
Very Badly.
I'm sure with SOME (read Lots) of glue, and adding tape, I may be ready again by the end of the week.
I must have had the balance wrong. 1.25" behind the point the main wing hole.
Based on some other source it's near the front extender pieces. Well this time before I motor-up I will glide it, into long grass.
I still love the look of this plane and it is Very simple to build.
Hai-Lee
Old and Bold RC PILOT
If you want to stiffen a single layer of FB for use as a wing or a KFM wing there is a simple method which is surprisingly effective and does not use large embedded spars. Simply paint each piece in (water based), white wood glue on both sides and allow to dry fully before painting.
I first tried it on my FB version of the a Depron pan for a 3 channel biplane called "Otto" from a combat pair called "Otto Vs Eddie". Not a good design for a heavy construction material but even after ripping the wings off numerous times in a myriad of crashes all the wings suffered from in impact damage were a few LE creases and the mounting holes for the wings being enlarged quite often. The wings did not fold or crease once even though some of the crashes were full throttle, Vertically), into trees.
A simple method to increase the rigidity of a KFM wing is to use knife cuts span-wise in each wing and to insert glue coated pieces to very thin Balsa. When the glue is dry the wing is almost as rigid as you would expect if you had used a CF spar but without digging a large channel. It is a simple method of adding post construction wing strength and rigidity without the need for a redesign or the construction of a new wing!
Try the methods on a few bits of scrap FB and amaze yourself!
Have fun!
FlyingCurry
New member
This what happened to my little Long EZ! My son modified it. Let it be a warning to other beta scratch builds!
Don't worry, I will give it another go. and Glue it again, and then
Wait your son made it amazing looking or changed the canard (or both). Oh, wait, I see the Bright Idea he had.
He installed a light plasma engine.
or will that become a lamp?
FlyingCurry
New member
If only a light plasma engine would get it to fly😏🤔Don't worry, I will give it another go. and Glue it again, and then
Wait your son made it amazing looking or changed the canard (or both). Oh, wait, I see the Bright Idea he had.
He installed a light plasma engine.
or will that become a lamp?
jpot1
Elite member
If you go smaller I think you can simplify this by just going with a flat single layer wing. I would just increase the wing chord a bit.
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