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dirk tinck08/12/2019 16:34:30
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644 forum posts
893 photos

After afew nights the wing takes shape .The ribs are really cut perfect and needed little or no sanding and soon i'm thinking how to mount the servo's.

I'm using savox micro's wich pull 3.9kg at 6V.

For a PSS model landing on the wing i don't want the servo horns on the underside ,so i'll be placing the servo on the top side of the wing with the arm pointing down and the steering rod diagonally to the upper side of the wing protruding the top skin and the servo hatch on the bottom side.20191130_223753.jpg

dirk tinck08/12/2019 16:42:27
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644 forum posts
893 photos

20191208_173319.jpg

dirk tinck08/12/2019 16:45:48
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644 forum posts
893 photos

20191130_233830.jpgFirst made a servo mount ,allways keeping in mind the low weight -rule no1.20191130_233824.jpg

dirk tinck08/12/2019 16:48:51
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644 forum posts
893 photos

Placing the servo tray on the top side of the wing20191130_235735.jpg

dirk tinck08/12/2019 16:50:25
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644 forum posts
893 photos

20191130_235807.jpg20191130_235742.jpg

dirk tinck08/12/2019 16:55:49
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644 forum posts
893 photos

20191130_235807.jpg20191130_233818.jpgBefore glueing the support in the wing i'm reinforcing the bottom side with 1mm ply that will serve to accept the servo hatch.20191130_233804.jpg

dirk tinck08/12/2019 17:14:31
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644 forum posts
893 photos

Last thing to do before closing the wing is to sand everything smooth according to the wingribs.This is done with the help of sanding guide (black spraypaint) and a sanding block.

When you start to sand the ribs ,it's time to stop !

20191201_214509.jpg

dirk tinck08/12/2019 17:17:22
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644 forum posts
893 photos

Almost forgot to put the wires in 20191203_222138.jpg

dirk tinck08/12/2019 17:30:56
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644 forum posts
893 photos

20191204_222208.jpgAfter closing the wing with the upper wing skins (all with green zap) and trimming the edges ,the next thing to do is placing the middle wing piece (triangular stock hard balsa).For this task i'm placing the wing on a flat board side per side to get the parts in line with the bottomside of the wing.

I marked the position of ribs no2 on the wing skin for a reinforcement between wing and triangular pieces.I cant help thinking these parts will brake -off in the event of a hard landing....After all this part holds the wing to the fuse !!!

20191204_221904.jpg

dirk tinck08/12/2019 17:34:20
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644 forum posts
893 photos

After adding the leading edges these will be sanded in shape with a long sanding block and sanding guide.When the sand paper starts to touch the wing skin it's time to stop !20191206_224903.jpg

dirk tinck08/12/2019 17:37:43
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644 forum posts
893 photos

In the last pic you can see the location for the reinforcement of the middle wing piece.

The wing tips also were sanded after cutting them out of a piece of 10mm balsa.20191207_222647.jpg

dirk tinck08/12/2019 17:41:42
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644 forum posts
893 photos

20191207_234236.jpg20191207_234218.jpg20191207_234203.jpgBefore drilling the aileron-hinge holes i made up a test piece to make sure where to drill. The metal pins should be in line with the aileron hinge point 20191207_234147.jpg

McG 696908/12/2019 18:22:55
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3305 forum posts
1257 photos

WAUW, Dirk... you've joined and top sheeted the wing already, your wing servos are close to being sorted and your fuse is more than halfway... or even further in the meantime...

Somewhere I'm envious of course, but also a bit 'disappointed' as you're going sóó fast that there is nothing really for me to try to copy...

Keep up the great work, young man.

Cheers

Chris

Peter Garsden10/12/2019 09:39:30
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1734 forum posts
1302 photos
Posted by dirk tinck on 08/12/2019 16:45:48:

20191130_233830.jpgFirst made a servo mount ,allways keeping in mind the low weight -rule no1.20191130_233824.jpg

Thanks for these photos Dirk, very helpful as I am at exactly the same stage. I am also using exactly the same servo!

Question, how are you attaching the servo to the mount - presumably a screw into softwood? I was going to do the same then I thought that if so one would never be able to get the servo out without wrecking the wing? Or have I misunderstood?

I was going to line the top sheeting with a piece of ply to give it stability then glue the servo to the ply with laminating resin which will pop off if prised with a screwdriver as per a mouldie, This, however is ply and balsa rather than fibreglass, so it may wreck the wing anyway?

What say you?

dirk tinck11/12/2019 23:53:43
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644 forum posts
893 photos

Hi Peter,the servo will be held down by a simpel ply brace that 's screwed into the hard door blocks. EASY TO remove later

dirk tinck13/12/2019 23:33:53
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644 forum posts
893 photos

Hello all,

made up the ailerons and hinges but i'm not very satisfied with them...So i ordered some new triangular balsa to try again with other hinges.20191208_223848.jpg

dirk tinck13/12/2019 23:38:39
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644 forum posts
893 photos

20191213_222223.jpg20191212_215810.jpgWhile waiting for the new ailerons i prepared some parts to connect the all moving tail to his servo.I wasn't pleased with the position of the snake so i altered this a bit too.20191212_214453.jpg

Phil Cooke14/12/2019 21:42:06
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2619 forum posts
1836 photos

The hinged ailerons look great to me Dirk what weren't you happy with were the holes a little over-drilled? The 'fit' when pushed home in the photo looks very neat!?

dirk tinck14/12/2019 22:35:08
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644 forum posts
893 photos

Hi Phil,thanks for the comment,maybe you're right but they look a bit banana too (warped)so i have to change them anyway...

dirk tinck14/12/2019 22:40:04
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644 forum posts
893 photos

Another thing to think about are the speed brakes.

If i'm going that way, i have to do it before i join the fuse halves IMO.

So i'm giving myself a week to come up with a decent way to get them done.

First thing is to locate their position and mark it on the fuse.20191214_212716.jpg

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