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Feb 25, 2013, 08:39 AM
SEM
SEM
Registered User
Discussion

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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Feb 25, 2013, 10:13 AM
BOHICA!
Mike Warren's Avatar
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?
Feb 25, 2013, 10:19 AM
Registered User
Very nice work.

What is it made out of??

Steve
Feb 25, 2013, 10:21 AM
Pro Hoarder
turbonut's Avatar
Nicely done and welcome to RCGroups!
Feb 25, 2013, 08:35 PM
tom
tomme21's Avatar
Очень красиво сделано, вы великий пилот. Добро пожаловать на rc групп.
Feb 25, 2013, 09:08 PM
BOHICA!
Mike Warren's Avatar
Quote:
Originally Posted by tomme21
Очень красиво сделано, вы великий пилот. Добро пожаловать на rc групп.
(Very nicely done, you are a great pilot. Welcome to rc groups.)
Feb 26, 2013, 05:57 AM
Cajun-American
Boogie_'s Avatar
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?
Feb 26, 2013, 08:08 AM
SEM
SEM
Registered User
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
Feb 26, 2013, 11:20 AM
EDF Jet Jam 2017, June 15-18
Kevin Cox's Avatar
Great job! I would also like more details. Fan, batteries and weight.
Feb 26, 2013, 06:58 PM
EDF rules... :)
AirX's Avatar
Welcome to RCGroups. This is a cool project, very nicely done.

Cheers,
Eric B.
Feb 27, 2013, 02:42 AM
Registered User
p901P901's Avatar
Its always great to see how the development process continues. I will like to see your progress.
Feb 27, 2013, 07:59 AM
Registered User
juanjulian's Avatar
Great job....

A big emotion maiden a new plane.

Welcome

Juan
Feb 27, 2013, 01:23 PM
SEM
SEM
Registered User
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
Mar 02, 2013, 12:04 PM
Registered User
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 ?
Mar 02, 2013, 12:51 PM
SEM
SEM
Registered User
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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