1/3 scale Japanese vintage glider Mita type 3

Let us all watch your new project progress.
Post Reply
StephenB
Posts: 99
Joined: 26 Dec 2018, 08:45
Location: Hungary

Re: 1/3 scale Japanese vintage glider Mita type 3

Post by StephenB » 15 Nov 2019, 17:33

Beautifully engineered fuselage, quite an accomplishment - interested to see how you did this.

norm
Posts: 37
Joined: 14 Nov 2019, 10:15
Location: Utsunomiya
Contact:

Re: 1/3 scale Japanese vintage glider Mita type 3

Post by norm » 16 Nov 2019, 02:47

Cliff,
It is my pleasure and a great honor to donate the plan but the current plan is quite messy. After organizing it I will donate. Please wait.

Paul and Stephen B,
The fuselage structure was made of carbon tubes bonded by epoxy adhesive. After cutting the tubes, edges were trimmed carefully by a diamond file to fit well. The fuselage is composed from several truss panels. Each panel was built on a flat plate onto which the plan was placed. Attached is a shot of making a panel.

At this point, a bit of CA is dropped on each junction. After making necessary panels, then they were constructed. Second photo shows this process.

A bit of CA is dropped again. After the construction is completed, the epoxy adhesive is applied on each junction. The epoxy adhesive was mixed with a carbon powder.
The canted longerons were joined each other with a steel rod inserted inside with the epoxy adhesive.
Attachments
後胴組立.png
assembling aft fuselage
後胴トラスパネル.png
making fuselage panel
Last edited by norm on 19 Nov 2019, 14:03, edited 3 times in total.
河上宣道

User avatar
Cliff Evans
Posts: 1818
Joined: 13 Mar 2015, 10:32
Location: Bristol
Contact:

Re: 1/3 scale Japanese vintage glider Mita type 3

Post by Cliff Evans » 16 Nov 2019, 08:40

Norm, that is very kind of you. Thanks, we look forward to it.

Martin Gough
Posts: 73
Joined: 03 Mar 2017, 23:21
Location: Cheshire

Re: 1/3 scale Japanese vintage glider Mita type 3

Post by Martin Gough » 16 Nov 2019, 11:55

Stunning construction. More picture of the build would be greatly appreciated.

norm
Posts: 37
Joined: 14 Nov 2019, 10:15
Location: Utsunomiya
Contact:

Re: 1/3 scale Japanese vintage glider Mita type 3

Post by norm » 16 Nov 2019, 12:50

Martin, thank you for your comment. You can see more picture in my blog. Although it is written in Japanese, you may possible to understand by viewing pictures. Please try!

http://normsan.blog.fc2.com/archives.html

Added by moderator

For English Translation:
https://translate.google.com/translate? ... hives.html
河上宣道

norm
Posts: 37
Joined: 14 Nov 2019, 10:15
Location: Utsunomiya
Contact:

Re: 1/3 scale Japanese vintage glider Mita type 3

Post by norm » 16 Nov 2019, 12:55

Let me show you my 1/3 scale Mita's beautiful flight over the rice fields. This view is taken from a drone.

[youtube]https://www.youtube.com/watch?v=-qNezx_ ... e=youtu.be[/youtube]

I belive the scenery is quite different from those of Europe. Did you enjyoy it?
河上宣道

Adam C
Posts: 8
Joined: 26 Oct 2017, 14:36
Location: Southampton

Re: 1/3 scale Japanese vintage glider Mita type 3

Post by Adam C » 16 Nov 2019, 13:32

I've used a similar approach with Ww1 scale power models that used wooden dowel to emulate steel tubing. The idea is interesting but suffers from easily cracked joints even with pining.

Thin walled steel tubing is practical and can be welded.

User avatar
Cliff Evans
Posts: 1818
Joined: 13 Mar 2015, 10:32
Location: Bristol
Contact:

Re: 1/3 scale Japanese vintage glider Mita type 3

Post by Cliff Evans » 16 Nov 2019, 14:02

Great video norm.

norm
Posts: 37
Joined: 14 Nov 2019, 10:15
Location: Utsunomiya
Contact:

Re: 1/3 scale Japanese vintage glider Mita type 3

Post by norm » 17 Nov 2019, 07:54

Wing Build

The wing is composed of four sections, 2 center sections and 2 outboad sections. The full scale Mita has a single center section but I have broken it in two sections because of ease for transportation. It has a single spar at 35%C and an auxiliary spar in front of the airlon. The spar was built with a square carbon tube frange and a plywood web.
Each section was built on an assembly jig. Total weight of the wing is about 4 Kg after covering and painting.
Attachments
wing plan.png
wing plan
wing assembly jig.png
Wing assembling jig
assembling outer wing.png
assembling outer wing
wing assembled.png
assembled wing
Last edited by norm on 19 Nov 2019, 13:53, edited 1 time in total.
河上宣道

User avatar
RobbieB
Posts: 531
Joined: 07 Mar 2015, 22:22
Location: North West

Re: 1/3 scale Japanese vintage glider Mita type 3

Post by RobbieB » 17 Nov 2019, 09:52

Super vids (and model) Norm - always nice to see something a bit different.

Quite a 'tight' flying field you have there but I suspect Rog would still be a bit envious :lol:

It will be interesting to see how the epoxied joints stand the test of time re Adam C's point - do please keep us informed.

Post Reply