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Old Aug 11, 2013, 04:11 PM
Depron Daz
Daz393's Avatar
United Kingdom, England, Basingstoke
Joined Feb 2012
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Build Log
Guillows 403 Spitfire conversion build

Hey guys.

The good wife bought me one of these Guillows kits, so having read through all of the conversion build threads above ^ I thought I'd start on mine.
Originally I thought of sheeting the whole thing but that equals more weight, and then some builders have internally planked every single opening, but I don't think I have the patience for that, and the extra glue on every plank must also add quite a large amount of unnecessary weight! So I have been adding extra stringers so that I can use the tissue provided and hope that the covered curves are more rounded.
Now, I hear that the dope is rather strong in odour, but as the good wife has issues with her nasal passages and breathing, is there anything else that can be used instead? Also, the kit instructions say that the tissue can go on either dry or wet, which way is best?
I'll try and get a few pics on later, but then we've all seen them so many times before, LOL

Daz
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Old Aug 11, 2013, 04:35 PM
ARFs make me BARF
mrittinger's Avatar
United States, MI, Roseville
Joined Dec 2000
9,023 Posts
I apply Jap Tissue with thinned 50/50 white glue. For the most part, things like the wings with large flat areas can be done dry, and then misted with a fine sprayer or damp sponge, and allowed to dry. Pay attention to the tissue grain direction, you want it spanwise.
On compound curves, I apply it wet. Pull it as tight as you can without tearing it. On a fuse like that, its probably one strip for every 4 stringers or so, except maybe the rear 1/2 where it is somewhat conical.
I spray with a couple LIGHT coats of Krylon Crystal Clear spray paint. Holds up well.
Here is my Stinson 125 covered that way using black and red Jap tissue. I HIGHLY suggest getting a good quality tissue. Try Dare products...
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Old Aug 14, 2013, 03:40 PM
Depron Daz
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United Kingdom, England, Basingstoke
Joined Feb 2012
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Here's a few pics of my build so far, pretty much self explanatory. The exhaust stacks will be fully functioning to expel the ESC heat from both sides, with a decent size inlet in the nose.

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Old Aug 14, 2013, 03:45 PM
It's a Great Day to Fly
LenBFP's Avatar
Melbourne Beach, Florida
Joined Jan 2002
3,864 Posts
Looks nice Daz.

Len
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Old Aug 14, 2013, 03:59 PM
Depron Daz
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United Kingdom, England, Basingstoke
Joined Feb 2012
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Thanks Len. This is my first one, but I have read all of the 403 kit threads, so I'm picking what I believe is the best of ideas and putting them in mine.
Kind regards
Daz
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Old Aug 14, 2013, 06:08 PM
Registerd Beaver
Smokin' Beaver's Avatar
Australia, WA, Warwick
Joined Jul 2003
3,573 Posts
Looks good Daz,
I did the same with the exhausts on mine but just allowed the air to come in behind the spinner using the venturi effect of the exhausts stacks to draw it through. Never had a problem with ESC or battery heat. They are quite large so work well. The overall cross sectional area of them is around 1/2" which is fine.
On the firewall I put the airflow hole below the motor mount and the ESC directly in that airflow. Above that (along the side keel level of the frame) I have a battery plate and so the air comes in, across the ESC, up and around the battery plate and out the stacks.

Phil
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Old Aug 25, 2013, 01:09 PM
Depron Daz
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United Kingdom, England, Basingstoke
Joined Feb 2012
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Some more pics to update.

I've added double the required amount of stringers to the whole of the fuselage hopefully to stop some of the tissue sag.
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Elevator servo in place with a barrel link. The area in front of the cockpit sheeted and glassed. More coats to follow. Also the battery hatch done the same way. I've kept the original formers but have also sheeted in between, again to stop any unsightly tissue sag.
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Spektrum 6ch park flyer Rx removed from it's cardboard box. Stabiliser and fin fillets completed. Fuselage looking nice and straight.
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Old Sep 08, 2013, 02:28 PM
Depron Daz
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United Kingdom, England, Basingstoke
Joined Feb 2012
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Hu guys.
I have just started to build the wing sections, and have glued the leading edge and trailing edge frame work whilst pinned to the board, When do I put the wash-out in? Is it before or after the ribs go down?

Also, seeing some others comment on the airfoil shape, I intend to add balsa strips to the underside of each rib and then sand to shape into a Clark Y foil shape. Is this an OK way to do it?

Thanks

Daz
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Old Sep 08, 2013, 08:35 PM
Depron Daz
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United Kingdom, England, Basingstoke
Joined Feb 2012
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Can anyone answer the above questions please?

Many thanks
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Old Sep 08, 2013, 08:40 PM
dusty bible = dirty life
Majortomski's Avatar
Oklahoma City OK USA Where fakts still exist even if they are ignored
Joined Aug 2000
2,777 Posts
Why do you think you need to put wash out in?

You could build it straight and if you have a odd stalling issue then raise the trailing edge of the ailerons just a tad.

If you want to build wash in now you have to un pin the trailing edge and shim it up 1/16 of an inch at the outboard point of the aileron, then pin the te back down and start building normally.

HTH
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Old Sep 09, 2013, 01:17 AM
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Spitfire1954's Avatar
United Kingdom, England, East Riding of Yorkshire
Joined Jan 2011
618 Posts
Hi Daz – washout was built in as I built up the outer wing panels – 3/32" at the tip end of the aileron.

Charles
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Old Sep 09, 2013, 05:23 AM
Depron Daz
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United Kingdom, England, Basingstoke
Joined Feb 2012
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Thanks guys, I'll put in the shim then.

Daz
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Old Sep 09, 2013, 02:07 PM
Depron Daz
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United Kingdom, England, Basingstoke
Joined Feb 2012
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Just a little update on the build so far.

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Description: I've put extra stringers in just like I did on the fuselage so the tissue doesn't sag and make it look like a starved horse! Name: IMG_2082.jpg
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Description: All aileron panels are in, time to start shaping!

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Description: Not wanting to have a flat bottomed wing I added extra balsa strips and started to sand in the shape.

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Description: 12g's so far. The underside of the wing wont have as many stringers, so apart from probably 8 stringers, a 5g servo and the wire, I'm hoping for 20g's

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Description: Second wing finished up until the aileron building.

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Description: One 6mm rare earth magnet to hold the back end down.
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Old Sep 09, 2013, 02:22 PM
Depron Daz
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United Kingdom, England, Basingstoke
Joined Feb 2012
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A few more pics.

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Old Sep 09, 2013, 02:53 PM
Or current resident
glewis's Avatar
USA, FL, Tampa
Joined Jul 2002
4,823 Posts
Nice! I like that wing. All those stringers look great.
Also looks like you shouldn't have any problem with the cg with your front battery hatch.
Glenn
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