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» Soaring
Sat Feb 17, 2018 8:11 pm by Gary M Jones

» indoor 17/2
Sat Feb 17, 2018 6:15 pm by andy-kaz

» INDOOR
Mon Feb 12, 2018 6:54 pm by Andy Sayle

» Wot 4 Mk3 Kit Build
Wed Feb 07, 2018 4:37 pm by Mark Barnes

» Afonwen mast
Tue Feb 06, 2018 9:05 pm by andy-kaz

Soaring

Sat Feb 17, 2018 8:11 pm by Gary M Jones

Great soaring conditions on the Great Orme yesterday afternoon & even better today ( Sat.). Nice to get out & use some sky !!

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Wot 4 Mk3 Kit Build

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Wot 4 Mk3 Kit Build

Post by Andyedmead on Tue Jan 23, 2018 7:21 pm

I like reading these build threads so here is one of my own.

Chris Foss Wot 4 MK3 Classic. Bought this off my friend who has moved onto full size.

Engine is ether a os40 max fp or a asp 61 fs.




Kit contents and very nice foam wings.



Leading edges glued on.


Leading edges and trailing edges glued on. Ready for sanding.
Instructions crossed out so I don't screw the options up, which for me is 2 aileron servos.




Wing tips glued on ready for shaping, I cheated and used epoxy.
Wing  tip profiles dry built ready for glue.



Wing tips shaped and finished and I used some 1/2 stock balsa instead of the suggested 1/8  triangle scraps.
Le and te now shaped to wing profile.

Wing joined and some cable left in for pulling the servo extensions through.
Next job on wing is to square off the leading edge but can't do that until fus is done.


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Re: Wot 4 Mk3 Kit Build

Post by Mark Barnes on Tue Jan 23, 2018 7:49 pm

Awesome glad your doing a thread, a proper wot 4 too.

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Re: Wot 4 Mk3 Kit Build

Post by Andyedmead on Tue Jan 23, 2018 11:44 pm

After another evening in the garage and not so fast progress I asked myself why didn't I buy an ARTF.
And I very nearly F***** up.

I had to make my mind up about the engine, have gone for the Asp 61 fs.

Anyway have managed two identical fuselage sides, pics to follow.


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Re: Wot 4 Mk3 Kit Build

Post by Andyedmead on Fri Feb 02, 2018 8:46 pm

Left and right sides made and weighted down to keep straight not identical sides as I said before.

Sides complete with ply and longerons.

1 " Spacer to set back bulkhead for bigger engine. You can always add some sort of spacer later but you can't change the bulkhead position once it's built so best to set it back. One advantage over the ARTF version I suppose.

Very important job now setting the Bulkhead hopefully nice and straight and 90 degrees.

Same for Former 2 ensure its nice and square
Now time to join the other  side, still laid flat and weights added to keep it in postion after checking formers are still square.


All the time whist building the fus keep checking that its not twisted.




Note Velco strap to hold side together before glue.


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Re: Wot 4 Mk3 Kit Build

Post by Mark Barnes on Sat Feb 03, 2018 9:18 am

looking well Andy

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Re: Wot 4 Mk3 Kit Build

Post by Andyedmead on Wed Feb 07, 2018 3:25 pm

Fiber glass Join on wing, may have used a little too much hardener but did come out strong.

Cut out for servo.

Covered wing in solar film, not 100% happy with my covering skills, a few wrinkles but at least I can say I built it myself. Still have to shape the control surfaces for the wing then hinge etc.

Had a good tip off Mike S to use some masking tape to cover the fiber joins before covering, worked well and it hides the joins.


Fus can be finished now, getting  there slowly.

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Re: Wot 4 Mk3 Kit Build

Post by Mark Barnes on Wed Feb 07, 2018 4:37 pm

good job, solar film wrinkles can be removed with carfull use of a heat gun.

I really should get on with my builds

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