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Sabre made in Belgium

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Phil Cooke28/03/2020 08:13:50
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2551 forum posts
1796 photos

Ingenious - And very nice drawings too! I do like the weight drop to maintain the CoG!

With all the time we have on our hands at present you'll have to make us a test sequence video to keep us all entertained!

Andy Meade28/03/2020 14:57:04
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2764 forum posts
717 photos

A good solution but... you're just going to drop a small weight off the back onto the slope somewhere? Sounds a bit risky (not to mention if it's lead...)

dirk tinck28/03/2020 20:00:42
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590 forum posts
822 photos

Estimated weight to drop is 45 gr Andy.Mayby i could hang it on a nylon thread attached to the CG ?

robk29/03/2020 13:41:59
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120 forum posts
167 photos

What an amazing job Dirk! We are not worthy...

dirk tinck29/03/2020 15:02:09
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590 forum posts
822 photos

A model is perfect when You think it is Rob !!

dirk tinck29/03/2020 15:02:17
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590 forum posts
822 photos

A model is perfect when You think it is Rob !!

dirk tinck29/03/2020 22:31:45
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590 forum posts
822 photos

Sunday : Glassday !

All sanded , dusted , weave ready , epoxy ready and the fuselage on a support for easy handling :Hands free !

I got a piece of 25gr for the whole fuse half , fin included, over the fuse .I protected the elevator hinge rod with some heat shrink tube and cutted a little hole for it in the cloth.

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Same M.O. as for the wing :Pin the cloth down with some dots epoxy brushed on .Carefully brush the cloth to the fuse , starting in the center and work your way to the edges till you're over the center of the fuse.

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I did the inside of the nose with a wet finger.This section will get another layer after the two halves are done

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I used very little resin over the gunports as i don't want them flouded ,to much sandingsad

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Here and there i used a pin to hold the cloth down.

In the wing-fairing area ,a bubble was very resistent so i placed a piece of plastic in there and left some weight on top (a metal file )

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Finally the brake opening :Very little resin here , keeping the hinge holes open.

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After all this i rolled everything down with a spunge roll to remove exess resin. In between i rolled the spunge on a piece of kitchen towl to roll of the resin.

Done !

Second half tomorrow ! untill then !

Phil Cooke29/03/2020 23:22:21
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2551 forum posts
1796 photos

Some great tips and guidance here (Dirk - does the plastic sheet not stick to the glass and cloth at all in the fillet?) but for me, the very best thing has to be the elevated bench mount into the wing bolt nuts! Superb idea!

Edited By Phil Cooke on 29/03/2020 23:38:35

dirk tinck30/03/2020 09:45:51
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590 forum posts
822 photos

Thanks Phil. It's the kind of plastic used for mixing cups.Dus not stick at all

McG 696930/03/2020 10:29:14
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3177 forum posts
1199 photos

Great job, Dirk.

... and a very helpful tutorial to all of us. yes

Cheers

Chris

Steve McLaren01/04/2020 21:39:50
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248 forum posts
257 photos

Yes very helpful. Do you put anything on the balsa before applying the resin Dirk? And is it necessary to try to do a whole fuselage side in one piece? Would it be ok to do the fin and tail area separately and have an overlap joint or two? (I've not done this before!)

dirk tinck01/04/2020 22:09:50
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590 forum posts
822 photos

Hi Steve , the cloth is put on the fuse completely dry,on bare balsa.You can do it with separate parts,but then you have seems to sand away.I saw it as a challenge to do it in one pièce. Good luck !Glad to help !One last tiput some gloves on to "form""the cloth so you don't misform it.I have a very rough skin on my hands and i keep pulling threads out of the cloth !

dirk tinck01/04/2020 23:35:38
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590 forum posts
822 photos

Hi all !

sanded all evening on the fuse being glassed. Couldn't resist to spray some paint on the critical area's.

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There's still a lot of sanding to do before the final coat of primer is on !

I'm still not sure whether to put primer on or a thin coat of resin. The problem with spray paint is that you can't spray paint inside a scratch or a deformity,(like the cloth signature)but you can get the paint in with a brush or foam roll. Resin is also harder than paint and dry's out faster.If you spray on too much primer,it takes weeks to dry completely,especially one component paint.(spray cans)If you put on laquer too soon,it will show weeks later on your model. Don't ask me how i know...

More testing i guesswink

Phil Cooke02/04/2020 07:45:53
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2551 forum posts
1796 photos

Dirk your 'critical areas' look amazing with a dusting of spray paint - superb work!

The gun ports look spot on - amazing!

dirk tinck05/04/2020 14:22:07
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590 forum posts
822 photos

After some filling with primer and sanding (Just a few spots in the low area's visible now) i finally took the dicision to give the whole fuse a thin coat of resin for the simple reason that i prefer to fill any minor depressions (or the weave signature ) with resin , rather dan with primer.Another reason is , i don't want to sand trough the glass,believe me , you don't want that

I prepaired 30 gr epoxy,rolled it on with a spunge roll. 50% Will be sanded off again. After this there will be very little primer needed before the color goes on .

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I know this looks like it has to DRY longer (you think) than primer out of a spray can , but it will be HARD much faster !!

Not much fun in looking at paint drying so i went ahead with the dummy hydraulic cilinders for the brakes.For the outer part of the piston i took some abs tube and for the inner part i took pieces of an old extendable car antenna:not too heavy and very realistic. at both ends i glued in a xxs ball joint to hook them up in the fuse. Some dummy tubes will be added later. The background will be an image of the real brake-bay

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2 grams per side...

McG 696906/04/2020 12:35:14
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3177 forum posts
1199 photos

Love your cute airbrake actuator, Dirk. yes

By the way, did you ever tested Freddy B's Sauce that we talked about in Wavre? ...

Cheers

Chris

dirk tinck06/04/2020 15:10:45
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590 forum posts
822 photos

Hi Chris ,I'm afraid i don't have all the ingredients for Fred's saus in stock ...And no DIY shops open for the moment...

Cheers ,

Dirk

McG 696906/04/2020 18:36:21
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3177 forum posts
1199 photos

That's too bad, Dirk.

It was a perfect moment to try it out though. cool

I realize getting basic products is a problem at the moment with all the DIY shops being shut down.

I'm very close to having no spray can primer anymore amongst other thingies... but luckily I still have my Dog's second wing halve to start... blush

Cheers & stay safe, young man

Chris

dirk tinck09/04/2020 21:07:29
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590 forum posts
822 photos

20200409_220043.jpgRelax ! It's only sanding guide!!20200409_220028.jpg

McG 696909/04/2020 21:16:31
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3177 forum posts
1199 photos

Dirk,

To be honest, I like this deco scheme better than the 'ice cream' one... cool

Cheers, young man

Chris

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