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Old Feb 25, 2013, 08:39 AM
SEM
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Joined Feb 2013
8 Posts
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Su-7

Good day frends. Let me introduce this model.

http://forum.rcdesign.ru/attachment....3&d=1361638659
http://www.youtube.com/watch?feature...&v=TmoXEGdZI0A
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Old Feb 25, 2013, 10:13 AM
Not Funny......
Mike Warren's Avatar
United States, CO, Redstone
Joined Dec 2010
906 Posts
Very nice! Congratulations.
The Su-7 (Nato "Fitter-B") is something barely known to most Westerners. Your model flys well; ........and has a long takeoff roll just like the real one!
More details? Dimensions, power system, construction?
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Old Feb 25, 2013, 10:19 AM
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Joined Apr 2004
799 Posts
Very nice work.

What is it made out of??

Steve
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Old Feb 25, 2013, 10:21 AM
Pro Horder
turbonut's Avatar
upland CA
Joined Dec 2004
7,416 Posts
Nicely done and welcome to RCGroups!
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Old Feb 25, 2013, 08:35 PM
tom
tomme21's Avatar
USA, LA, Natchitoches
Joined Apr 2004
1,595 Posts
Очень красиво сделано, вы великий пилот. Добро пожаловать на rc групп.
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Old Feb 25, 2013, 09:08 PM
Not Funny......
Mike Warren's Avatar
United States, CO, Redstone
Joined Dec 2010
906 Posts
Quote:
Originally Posted by tomme21 View Post
Очень красиво сделано, вы великий пилот. Добро пожаловать на rc групп.
(Very nicely done, you are a great pilot. Welcome to rc groups.)
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Old Feb 26, 2013, 05:57 AM
Da' Cajun
Boogie_'s Avatar
Lake Charles, Louisiana
Joined Jun 2009
2,871 Posts
Very nice.

Great to see this being modeled. Very similar lines to the MiG 19 I'm doing now. Almost decided on doing the Su-7 but had better drawings of the MiG.

Good flight too. I'm guessing that was the maiden?
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Old Feb 26, 2013, 08:08 AM
SEM
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Joined Feb 2013
8 Posts
Hello,guys! Thank you for your coments. I don't speak english very well.
however i want to tell about my model.
First take a look at the pictures, please
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Old Feb 26, 2013, 11:20 AM
2014 EDF JET JAM We be Jamming
Kevin Cox's Avatar
St. Louis Intl, Missouri, United States
Joined Jan 1997
6,815 Posts
Great job! I would also like more details. Fan, batteries and weight.
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Old Feb 26, 2013, 06:58 PM
EDF rules... :)
AirX's Avatar
Joined Nov 1999
13,603 Posts
Welcome to RCGroups. This is a cool project, very nicely done.

Cheers,
Eric B.
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Old Feb 27, 2013, 02:42 AM
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p901P901's Avatar
United States, CA, Lancaster
Joined Jan 2009
1,250 Posts
Its always great to see how the development process continues. I will like to see your progress.
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Old Feb 27, 2013, 07:59 AM
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juanjulian's Avatar
Guatemala, Guate
Joined Jul 2007
286 Posts
Great job....

A big emotion maiden a new plane.

Welcome

Juan
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Old Feb 27, 2013, 01:23 PM
SEM
Registered User
Joined Feb 2013
8 Posts
Guys, thank you for invitation!
So about SU 7. Material is foam plastic(one of the tipes) dark blue. it was a slab of 10 cm thickness.
A pair of tubes and rails of carbon...Stationery tape.

Wingspan 850 mm . Length-1400 mm. All-up-weight is not more then 2 000 g.
I used 3 positions of the airplane for 3D model in SolidWorks.
The power plant http://www.velocity-rc.com/cgi-bin/v...ion=show&pid=1
I use 2 Kw motor and equipment suitable for it.
The main task of process was designing of the air channel befor and behind of fan.
You know fan must to recive enough of air.
My fan has over then 2.5 kg of thrust. I wanted to keep this parameter
Please have a look at the process of building in the foto http://forum.rcdesign.ru/f101/thread304403.html
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Old Mar 02, 2013, 12:04 PM
Registered User
Joined Dec 2008
1,516 Posts
Very unique project . I'm going to have to come up with a duct similar to that for my Het mig 21. If you squeezed the round FSA of the duct flat where the lipo sits , would it still flow the same or would you have to widen it even more ?
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Old Mar 02, 2013, 12:51 PM
SEM
Registered User
Joined Feb 2013
8 Posts
Sorry i dont understand your question very well.
As for air channel befor fan.
In any vertical profile of the channel we have the same area=Intake area(nof FSA).
And under lipo the air channel is changing its form only. However,any vertical profile in this part has the same area=Intake area.


Could you show your MiG21 please?
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