Author Topic: MiG-3Y Utka  (Read 2046 times)

Offline Tophe

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MiG-3Y Utka
« on: January 13, 2018, 11:14:29 PM »
I got from Unicraft a Mig-3 model, that I plan to build in a canard layout (YTKA in Russian, pronounced Utka). ;)
I thought it was a Novo injection kit but it is a vacform... ???

Offline Tophe

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Re: MiG-3Y Utka
« Reply #1 on: January 13, 2018, 11:16:34 PM »
Here is the project, but what glue to use? how cutting, how holding? solid?

Offline Frank3k

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Re: MiG-3Y Utka
« Reply #2 on: January 14, 2018, 04:28:14 AM »
Tophe, vacuforms are usually made from styrene or (less likely) ABS so your average model glue will work. Clear parts for vauform kits are usually made of Buterate; you can us PVA  (polyvinyl acetate) to hold it in place.

Here's a good primer (there is no part 2): http://www.clubhyper.com/reference/vacformbg_1.htm

 

Offline Tophe

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Re: MiG-3Y Utka
« Reply #3 on: January 14, 2018, 12:50:45 PM »
Thanks a lot for these directions, very helpful! :smiley:

Offline Tophe

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Re: MiG-3Y Utka
« Reply #4 on: January 14, 2018, 05:14:36 PM »
Of course I may imagine a Zwilling version, I may draw it, but I will not build it.

Offline Tophe

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Re: MiG-3Y Utka
« Reply #5 on: January 14, 2018, 07:30:59 PM »
I have started separating parts. I love the presence of 4 (half) tailplanes. As I am never building a perfect model for every side including from below, just acceptable on some photographs from precise angles, I consider this model will have 2 set of tailplanes: foreplanes and T-tail planes.

Offline Tophe

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Re: MiG-3Y Utka
« Reply #6 on: January 14, 2018, 10:49:47 PM »
I consider this model will have 2 set of tailplanes: foreplanes and T-tail planes.
Like this (and I think I will not use the fragile propeller):

Offline Brian da Basher

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Re: MiG-3Y Utka
« Reply #7 on: January 15, 2018, 02:32:36 AM »
I really like that last concept, mon ami!

I can imagine it in WW II 1940 Armée de l'Air camouflage.

Frank has given you some rock-solid advice on glues. One thing I usually do with vacforms is insert a bit of sprue running through the fuselage wing root to hold the wings on. This will give you a stronger attachment than just butt joining them.

Best of luck and I know I'll enjoy watching this one come together!

Brian da Basher

Offline elmayerle

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Re: MiG-3Y Utka
« Reply #8 on: January 15, 2018, 01:24:51 PM »
Going for a second-stage experimental to follow the MiG-8?

Offline Tophe

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Re: MiG-3Y Utka
« Reply #9 on: January 15, 2018, 11:38:54 PM »
Yes, maybe this is the Historical/technical explanation (in our dreams) ;)

Offline Tophe

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Re: MiG-3Y Utka
« Reply #10 on: January 20, 2018, 06:09:50 PM »
Even cutting the parts separate is not easy... The best tool I have found is scissors...

Offline ericr

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Re: MiG-3Y Utka
« Reply #11 on: January 20, 2018, 08:55:38 PM »

vacform is not easy, but with patience you can do it  ;)

Offline Frank3k

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Re: MiG-3Y Utka
« Reply #12 on: January 21, 2018, 02:00:22 AM »
If you can build - and finish a Unicraft kit, then a vacuform should be easy. Just think of it as a plastic model with far too much flash on the parts.

Offline Tophe

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Re: MiG-3Y Utka
« Reply #13 on: January 21, 2018, 11:06:15 AM »
(With my poor standards in quality) I love Unicraft kits, yes I do.
Simply, vacform seems a new learning for me and I fear I may fail, I will see.

One of my major failures in the past was the handling of thermoformed clear canopies, and I keep that strongly in my mind. Even if the white thermorformed parts here may be a success at last, I will not use the thermoformed canopy of the MiG-3, just painting black the "canopy", and this is a reason to invent further, like this:

Offline Tophe

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Re: MiG-3Y Utka
« Reply #14 on: February 01, 2018, 02:40:46 AM »
One thing I usually do with vacforms is insert a bit of sprue running through the fuselage wing root to hold the wings on. This will give you a stronger attachment than just butt joining them.
Do you mean a vacform model is intermediate between an injected plastic model and a paper model?