1/3 scale Japanese vintage glider Mita type 3

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norm
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1/3 scale Japanese vintage glider Mita type 3

Post by norm » 14 Nov 2019, 11:00

I'd like to post my newest scratch build 1/3 scale Japanese vintage glider Mita type 3 mod1.

Image

Above picture was taken at her first flight 19th Sept. 2019. I will post its details and how I made it during last 2 years. Please enjoy!
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Cliff Evans
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Re: 1/3 scale Japanese vintage glider Mita type 3

Post by Cliff Evans » 14 Nov 2019, 11:52

Gotta say, nice glider but don't like the moustache! Did you produce a plan?

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

Post by VinceC » 14 Nov 2019, 11:53

Lovely glider and one I don't know anything about. Thanks for posting

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

Post by Martin Gough » 14 Nov 2019, 22:35

Fantastic. Like that.

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

Post by norm » 15 Nov 2019, 02:00

Cliff,VinceC and Martin, thank you for your comments.

Cliff, yes I also don't like the moustache. It does not fit her beautiful face but is necessary because I don't have a Tag nor a Winch.
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Cliff Evans
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Re: 1/3 scale Japanese vintage glider Mita type 3

Post by Cliff Evans » 15 Nov 2019, 02:49

Did you do a plan?

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

Post by norm » 15 Nov 2019, 10:02

About the Mita type 3 mod.1.

Believing that the Mita type 3 is not popular in the Europian glider community, let me introduce her.

The Mita type 3 mod.1 was designed by Mr. Asahi Miyahara in 1965 and took the first flight in 26th March, 1966.
It is two placed soarer used by many flying clubs and brought up many glider pilots in Japan.

General characteristics
1. Crew 2
2. Length 8.60m
3. Wing Span 16.0m
4. Height 1.3m
5. Wing Area 15.9m^2
6. Aspect Ratio 16.1
7. Airfoil NACA 633-618
8. Empty Weight 300Kg
9. Gross Weight 450Kg
10. Number of Production 32

Performance
Vne 180Km/h
Max glide ratio 30.8
Rate of sink 0.75m/sec
Last edited by norm on 15 Nov 2019, 10:43, edited 1 time in total.
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norm
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Re: 1/3 scale Japanese vintage glider Mita type 3

Post by norm » 15 Nov 2019, 10:04

Cliff, yes I made the plan by myself using 2D CAD.

My 1/3 scale Mita type 3 has 5.33m wing span and the all-up weight is just around 10Kg. It has a fuselage made of epoxy bonded carbon pipes and covered with the SIG KOVERALL. The original Mita's fuselage is made of welded steel pipes and covered with cloth.

Because the 1/3 model craft's Reynolds Number is much lower than the original Mita, I changed the NACA 633-618 18% thickness airfoil to the NACA 632-615 airfoil which has 15% thickness. It was decided after the study of airfoil characteristics change at low Reynolds number by using the XFLR5 software.
Attachments
fuselage structure.png
fuselage structure
Last edited by norm on 19 Nov 2019, 13:58, edited 4 times in total.
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Cliff Evans
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Re: 1/3 scale Japanese vintage glider Mita type 3

Post by Cliff Evans » 15 Nov 2019, 12:00

Would you consider donating the plan to the forum so that others can build it? Looks great by the way.

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

Post by Paul_Williams » 15 Nov 2019, 16:12

Wonderful modelling of something not seen here before.
Will you post how you made the tube joints strong enough ?
Most impressed.
Paul

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