Soviet Student/Universities Projects (MAI, KhAI, etc.)

[blackkite]

Hi! MAI-63 and MAI-68.

MAI-63.

Уголок неба ¦ МАИ МАИ-63

МАИ МАИ-63

J2mcL Planeurs - Fiche planeur n°

MAI-68.

Экспериментальный планер МАИ-68 "Пушинка". - Российская авиация

Экспериментальный планер МАИ-68 "Пушинка". :: Экспериментальный планер МАИ-68 "Пушинка". Разработчик: МАИ Страна: СССР Первый полет: 1970 г. Дальнейшим развитием схемы "летающее крыло", предложенной

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Экспериментальный планер МАИ-68 "Пушинка".

Экспериментальный планер МАИ-68 "Пушинка". :: Экспериментальный планер МАИ-68 "Пушинка". Разработчик: МАИ Страна: СССР Первый полет: 1970 г. Дальнейшим развитием схемы "летающее крыло", предложенной

translate.google.fr

 

[Avimimus]

Hi,


here is anther drawings and a Model for Grach-4.

http://alternathistory.org.ua/proekt-selskokhozyaistvennogo-samoleta-mai-grach-4-sssr

Link is down, so Archive.org: http://web.archive.org/web/20170204...skokhozyaistvennogo-samoleta-mai-grach-4-sssr

Some interesting information... apparently its structural weight was supposed to be 44% of its takeoff weight?

It seems to have also had an autopilot and possibly even fly-by-wire controls?

Btw. Does anyone have a more detailed 3-view (or larger version of the image Hesham posted)? I'm trying to work out some of the aerodynamic characteristics - but without being able to figure out more about the airfoil, wing incidence, and other details of the layout it is hard to do. A higher resolution image would help somewhat.

 

[hesham]

Hi Avimimus,

I think I saw 3-view to it on Internet,but where ?.

 

[Avimimus]

Hi Avimimus,

I think I saw 3-view to it on Internet,but where ?.

The upper right hand corner of the image you posted has one. It is just low detail. Any other leads appreciated though (or a higher resolution verison).

 

[Richard N]

The original MAI Grach-4 illustration link worked for me and I found that if you opened the illustration in a new window, you got a 1680 X 1085 large image to work with. I enlarged it on my screen and took screen snips of the drawings and have attached them.

I am also interested in the aerodynamic characteristics of the Grach-4 configuration. I build and fly flying wing models and am curious about how the downward shaped multi-segment elevator works. In most tailless aircraft, there is some part of the rear part of the wing that imparts a downward force, like a conventional horizontal tail, to balance the tendency of the forward part of the wing to pitch down.
The Grach-4 seems to have a downward shaped surface that would seem to give an upload instead of a download and would be the opposite of what works on my flying wing models. The elevator is also multi segmented and I was wondering if in level flight the segments are parallel to the flight path or slightly up to create a balancing download force.

I look forward to seeing the results of your analysis.

 

[hesham]

Amazing find,

thank you my dear Richard N.

 

[youROKer]

MAI, 1958.
1. Flying jeep. Weight 1200 kilograms.
2. Heavy flying platform. Weight of transported cargo - 40 tons.

 

[hesham]

Nice find YouROKer.

 

[borovik]

couple of flying platforms developed under the leadership of I.Bratukhin
Reply #217 http://www.secretprojects.co.uk/forum/index.php/topic,3556.210.html

 

[hesham]

couple of flying platforms developed under the leadership of I.Bratukhin
Reply #217 http://www.secretprojects.co.uk/forum/index.php/topic,3556.210.html

Thank you my dear Borovik,I remembered that I saw them before,but I didn't know
where.

 

[flateric]

OSKBES MAI design bureau 6-seat Aviatika-950 bizjet project - ancestor of Foton design, 1994-1995.
Design by Zhidovecky, Khvan and Goryunov.

 

[hesham]

Wow,amazing find my dear Flateric.

 

[hesham]

Also from, Летательные аппараты МАИ

 

[paralay]

OSKBES MAI design bureau 6-seat Aviatika-950 bizjet project - ancestor of Foton design, 1994-1995.
Design by Zhidovecky, Khvan and Goryunov.

The company Aviatika had a project with different nose pieces, including for the military. Maybe this is it?

 

[Avimimus]

OSKBES MAI design bureau 6-seat Aviatika-950 bizjet project - ancestor of Foton design, 1994-1995.
Design by Zhidovecky, Khvan and Goryunov.

You mention this as an ancestor of Foton. Out of curiosity... did it have boundary layer control at this stage in the program?

 

[hesham]

From L+K 5/1974,

a 3-view to Riga-50M.

 

[hesham]

here is a MAI Krechet VTOL Project.

http://p-ln.ru/rus/Krechet/index.html

https://www.jstor.org/stable/44719526?seq=1#page_scan_tab_contents

 

[Cy-27]

In 1994 the MAI published a book by J V Makarov called "Летательные аппараты МАИ " (ISBN 5-7035-0161-X). The Russian language book covered the history (aircraft engine powered boats, gliders, aircraft, submersibles, early UAV's and other equipment) from the MAI.

At the back of this, now dated, book were tables of equipment worked on and produced by the Institute. Many of the aircraft were experimental one-offs.

The first few tables covered aircraft, helicopters and gliders and are attached.

 

[hesham]

"Летательные аппараты МАИ "

Amazing book,I have it,and it had many unknown Projects.

 

[hesham]

A strange Info in my files,until remember the source;

MAI worked on or developed a Messerschmitt design after the WWII,can anyone confirm or deny this ?.

 

[hesham]

A strange Info in my files,until remember the source;

MAI worked on or developed a Messerschmitt design after the WWII,can anyone confirm or deny this ?.

It was from Flugzeug Classic,

Messerschmitt Me 262. One of the captured machines was extensively tested in the Russian flight test center NII. A Russian one still exists today
Instruction film for handling the machine with
many aerial shots. Further copies of the 262
were analyzed in detail in MAl and ZAGl.
The plan of the direct replica was then taken
but distance. The first jet fighter of the Soviet
union, the MIG 9, was seen in an early construction
phase of the Me 262 was still similar, but then became
completely redesigned.

 

[hesham]

What was this ?,

Interceptor fighter aircraft design. Poland.

Alfred Baron's graduation project developed at the Moscow Aviation Institute in 1956-1957 under the supervision of Artem Ivanovich Mikoyan.

samolotypolskie.pl - MAI-AB

 

[riggerrob]

Hi,


here is the MAI-407,it is a four-seat twin engined multi-purpose light aircraft
project,powered by two Rotax-912S engines.

Первый образец самолета МАИ-407 запущен в производство // АвиаПорт.Новости

Началось изготовление первого опытного образца легкого двухмоторного многоцелевого четырехместного самолета МАИ-407

www.aviaport.ru

Looks like it is intended more as a trainer for pilots earning their multi-engine rating. Similar to Piper Seminole, Beechcraft Duchess, Grumman-American GA-7 Cougar and Diamond DA-42 light twins.

 

[riggerrob]

Also from, Летательные аппараты МАИ

.3png and .2png look like attempts at toroidal biplanes where the wing tip vortices generated by the top wing are re-directed by the bottom wing. That might eliminate up to 15 percent of total drag.

 

[TsrJoe]

Brilliant photos, many thanks for sharing