Gliders > Slope Soaring
Wasabi Eco - Building Thread
Fred:
Hi there,
Yes, another building thread for the now famous Wasabi from Flybiwo! :)
Well... Not exactly just another Wasabi thread! :D
As the title suggest, we are now talking about a new development of the Wasabi, the "Eco" (Economical) version.
Mind you, Economical don't necessarily mean that the design will be changed to have an economical version of the flying as well! :p Everything will be the same as the fully moulded one, except this one will have a bit more wood (yep, the stuff from the trees! :p ;) ) in it ! :D
To make the story short, a while ago, Francois was looking for someone who can have a look at the feasibility of a Wasabi made of wood to have an "eco" version of the glider...
After a few mails, well, that was possible, and even better, the build can be perform by everyone and will not take month (I reckon 10 hours to complete the building..!)
So, after a few prototypes (sets of wings, tails...) and a few bad names, today is finally time to present you the beast!
Oh, and more good news, thanks to Francois, the plan will be available for everyone to download! But Francois will certainly talk to you about that! :)
First of all, a photo of the finished product...
Yep, everything except the fuselage is made of wood!
Enough blah blah, time to cut some trees and glue some wood !
Fred:
On the plan, lay out all the ribs on the spar.
The ribs and main spar are all made of 3mm Liteply.
Then, time to glue the second spar, made of 3mm liteply too. this will close the wing TE.
Note that on the plan, all the parts slots together, no mistakes can be made here !
And finally, glue the fake TE, made of square 5x5mm hardwood :
Make sure everything is square before gluing ! that's the main thing to be taking care of during the building process !
Tadaaaa ! :
That's 15 minutes worth of work.. Everything is glued with thick cyano by the way !
WING JOINER :
The wing joiner is a 12mm ext. diameter aluminium tube...
Hold on a minute ! :eek: 12mm is the size of the Wasabi wing joiner already !
Well, this is the only modification made from the stock Wasabi ! The wing joiner have to go (because of the building) from 12mm to 10mm, to have a 12mm tube inside the wing, the maximum dimension allowed by the size of the ribs !
So, for the fuselage, easy, cut the 12mm tube to be the size of the fuselage, and put it in the tube already in place... Job done !
And if you don't glue it (like me..), that can be retrofitted !
Later, we'll start the sheeting and finishing of the wings... Yes, already ! :)
Fred:
Now it's time to cut a few sheets of 1.5mm balsa (2 sheets each wing)...
Really easy, take a sheet, draw the cutting line, glue the sheet ! :D
Start with the top side of the wing, the ribs jig helps you to keep everything straight.
I used contact glue.
A sheet is not wide enough, so another smal triangular piece will be needed...
And here is the result :
Now, it's time to sheet the other side...
First, cut the rib's jigs
Then, to plank the other side, cut the balsa sheet to size, apply the contact glue on the ribs, apply the sheet, and remove...
You can see where the glue must go, top up with more contact glue on the sheeting if needed...
Now, to keep the thing straight, you must sand the LE. The trick here, to sand straight is to glue / tape a sheet of sanding paper on the workbench and use it as a sanding table...
By the way, here are some photos taken between the 2 wing building :
Fred:
Next step, is to glue the wing tips, made of a block of balsa cutted in shape.
You have to put the wing tips first as they will be used for the next step and be used as a "stopper" (?) for the LE.
Then, gluing the LE from 10mm soft balsa.
Time to shape all that now. A "must have" tool for all wood builders is a plane. I use a small one from Kavan with a razor blade.
After that, a good sanding (use the sanding paper from your workbench to be as straight ass possible
The 2 wings took me nearly 2 hours to arrive at this stage... :)
With the plan, cut the openings for the wing's servos...
And that's it for now !
For the ailerons, no photos, but the building is really simple... The aileron's LE is in 10mm balsa with 10mm balsa "ribs" and closed by 2 sheets of 1.5mm balsa top and bottom... around 10 minutes each to build.
DEPRON FLYER:
Hi Fred---- Fon here- finally joined the site!
Great day of flying the other day! Great site aswell....
Talk to ya soon- cheers Fon...
P.S. The Wasabi looks great...
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