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Old Jan 25, 2003, 11:12 PM
Registered User
Canada
Joined Dec 2002
20 Posts
Saab J-37 Viggen

Well

I've been trying to come up with a jet that hasn't been done yet and I want to flex my minute scratch building abilities.
I am thinking a Saab J-37 Viggen large enough to have retracts.

so now I basically have to build it around a power plant.

do you guys have any reccomendations?
I was thinking a jepe unit? or?
I'm really stuck as to what unit would be best motor, battery and so on.


So I think I'll try my hand at a plug then get it molded and such.


any good 3 views? thanks

Chris
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Old Jan 26, 2003, 07:47 AM
310mph Kolibri T25 Swist
henke's Avatar
Sverige, Kronobergs Län, Ljungby
Joined Jan 2001
4,836 Posts
Hi

Viggen is a great flyer! lands really slow!
I´ll se if I can find my 3 views!


BTW red is a good color!




yes... i know it´s a big pic.



/Henke
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Old Jan 26, 2003, 08:36 AM
EDF Head
Haldor's Avatar
Stavanger, Norway
Joined Feb 2000
7,999 Posts
Dimension:

Size the model for a 90mm EFD unit (I recommend a Schubeler DS51-3ph, Pricey but the best out there : http://www.schuebeler-jets.de)
Jepe fan is just as good but not designed for 1kw+ applications, more suited is size is slightly less and weight <2,5kg/5pounds.

Next is overall size of model, I think 140cm/55" length is a good number and aim for ~3-3,5kg/6-7pounds AUW. => 1kw power from ~25cells. Figure out which motor based on intended cellcount and powerlevel.
Cells - apparently the best battery out there at this time is the Sanyo HR-SC2600 NiHM, get'em zapped.


Haldor
www.halair.com
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Old Jan 26, 2003, 08:47 PM
Registered User
Canada
Joined Dec 2002
20 Posts
Wow thanks guys!

Haldor that is roughly the size I was going to shoot for, but a bit lighter! hehe

just to do it now!

the schubie fan and the motors they sell look like a good setup, but REALLY expensive!

oh well I guess for perfection there is a price!

I'll keep you guys posted, if anyone has a good 3 veiw and some other really good shots let me know

thanks!

Chris
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Old Jan 26, 2003, 09:14 PM
Big gov never Works
St. Martin's Avatar
Skunk Water, Rhode Island
Joined Jul 2002
12,466 Posts
Chris, I built the Ziroli Viggin for the RK-720. Not fast but extremely manuverable. Proved to be a decent small field flyer.
I think the design is very adaptable to edf. I would like to scale it down to mini-fan size. But, it may give you a starting point.
Steve
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Old Jan 26, 2003, 11:00 PM
How fast can balsa go?
rogwinger's Avatar
Chilliwack B.C.
Joined Jan 2002
678 Posts
Here's a 3-view for ya!
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Old Jan 27, 2003, 08:36 PM
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Clayton's Avatar
Jackson Hole, Wyoming
Joined Feb 2001
574 Posts
Here you go. Henket, is that a svenska plane or what? Why does it have english writing on the side?
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Old Jan 27, 2003, 10:50 PM
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St. Louis, Missouri, USA
Joined Nov 2000
667 Posts
Here's another one to twist your arm with....
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Old Jan 27, 2003, 11:42 PM
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Clayton's Avatar
Jackson Hole, Wyoming
Joined Feb 2001
574 Posts
Slowly twisting
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Old Jan 27, 2003, 11:45 PM
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Clayton's Avatar
Jackson Hole, Wyoming
Joined Feb 2001
574 Posts
OOPs wrong one
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Old Jan 28, 2003, 01:07 AM
310mph Kolibri T25 Swist
henke's Avatar
Sverige, Kronobergs Län, Ljungby
Joined Jan 2001
4,836 Posts
hehe still think red look better



/Henke
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Old Jan 28, 2003, 02:00 AM
Purple power
gregg f's Avatar
shadow hills,ca
Joined Apr 2000
6,594 Posts
air volvo. not your usual family ride!..........g
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Old Jan 28, 2003, 05:39 AM
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Jackson Hole, Wyoming
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574 Posts
It must be her g-suit that does that, right?
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Old Jan 28, 2003, 12:18 PM
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Ed Waldrep's Avatar
Las Vegas, NV
Joined Dec 1996
7,937 Posts
Gee, it'd be a shame if her bra straps failed when pulling 8 Gs and no one was there to enjoy it
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Old Jan 28, 2003, 01:01 PM
Registered User
St. Louis, Missouri, USA
Joined Nov 2000
667 Posts
Greetings!

Ed, that creates quite an image You've got to love it...

Here's a couple of good Viggen sites to peruse:

http://www.ipmsstockholm.org/magazin...blue_peter.htm

http://www.scramble.nl/mil/aircraft/...n-database.htm

http://www.hotel.wineasy.se/ipms/stu...ail_viggen.htm

http://www.flygvapenmuseum.nu/

I particularly like the blue Swedish special scheme on the first web site listed.

Fly Fast! Mark
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Last edited by Mark Nankivil; Jan 28, 2003 at 01:05 PM.
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