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Old Jul 06, 2009, 02:50 PM
ARFs make me BARF
mrittinger's Avatar
United States, MI, Roseville
Joined Dec 2000
8,933 Posts
Yippee!
Super Sportwin

Just an FYI for you guys....
Remember the famous "Sportwin" Speed 400 bird from 2001?
After much prodding and technoligical increases, I've started design work on the "Super Sportwin".
This bird will be 50" span for using 48" wood for the wings, Brushless/Lipo, with provisions for retracts.
It keeps the same super -sexy Sportwin lines, and easy build techniques.

If there is interest, I can post a build thread as well.

Mark
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Last edited by mrittinger; Jul 06, 2009 at 02:57 PM.
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Old Jul 06, 2009, 04:37 PM
Single-task at best...
tim hooper's Avatar
Telford, UK
Joined Feb 2000
7,490 Posts
Go for it, mark!

You may recall that I built a 48" version a few years back. Looked nice, but would have flown a lot better on the current crop of cheap outrunners and Li-pos!

tim
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Old Jul 06, 2009, 04:40 PM
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Mentor, OH
Joined Dec 2004
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that's what i'm talkin' about!
SWEET!
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Old Jul 06, 2009, 04:58 PM
ARFs make me BARF
mrittinger's Avatar
United States, MI, Roseville
Joined Dec 2000
8,933 Posts
Well, I am trying to make it buildable for outrunners and inrunners. I tend to like high-winding, high-rpm inrunners on a model like this.
It'll have a thick ply firewalls that can support outrunners, yet leave room for inrunners and motor mounts. Right now I have it set for 2" spinners, a common and cheap size.
Mark
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Old Jul 06, 2009, 05:07 PM
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Mentor, OH
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i had Dave North wind a couple of high KV out runners for my Sportwin. i'm in the process of figuring out how to mount them.
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Old Jul 06, 2009, 05:45 PM
ARFs make me BARF
mrittinger's Avatar
United States, MI, Roseville
Joined Dec 2000
8,933 Posts
The best way is to mount them from the front like a 400, it puts any chance of vibration to rest as opposed to a firewall mount where the entire motor,adapter and prop is hanging WAY out front. My opinion anyway. Works well on my little Curare....

Mark
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Old Jul 06, 2009, 10:33 PM
INDORUS EXPARAMINTO
SPEED-E-FLYER's Avatar
Springfield, Missouri, United States
Joined Jul 2002
4,206 Posts
Looking forward to this.

Larry
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Old Jul 17, 2009, 01:34 AM
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BeechSkipperDude's Avatar
Manchester NH
Joined Mar 2001
263 Posts
Wait, wait! I've gotta finish my original size sportwin first! I guess I can have two builds at the same time...

And yes, Please do post a build thread!
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Old Jul 21, 2009, 06:04 PM
ARFs make me BARF
mrittinger's Avatar
United States, MI, Roseville
Joined Dec 2000
8,933 Posts
UPDATE: The rough drawing are done, and I may start building soon, time permitting.
It is set up for 2" spinners, more than likely inrunners (but there is room for hot outrunners as well. )
Mechanical retracts that rotate forward, and 2 1/4" tires.
I'm going with landing gear doors rather than a hole (looks kinda unfinished that way), so it's been a complicated ship to design compared to the original, though it really keeps the spirit of the Sportwin.
Can be built one-piece (my advice for simplicity and strength) or with removable wing.


Mark
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Old Jul 21, 2009, 10:39 PM
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thanks for the update.
looking forward to some build pics.
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Old Jul 21, 2009, 10:48 PM
Registered User
Hemet, California, United States
Joined Aug 2001
2,607 Posts
Hi Mark,

Wow, great project. I know you like foam wings, but is there any chance you will have a built up version as well? Many guys don't cut their own foam wings. You might see more built from plans if there were a built up version.

Good luck! Mickydee
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Old Jul 22, 2009, 06:14 AM
ARFs make me BARF
mrittinger's Avatar
United States, MI, Roseville
Joined Dec 2000
8,933 Posts
The original has a built up wing.
This one will be foam because it is not flat-bottom aifoil.
I can provide templates to a cutter if someone needs cores cut, that is no big deal. We just need to find a reputable cutter and let me know.
Mark
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Old Jul 22, 2009, 12:25 PM
AndyKunz's Avatar
Illinois
Joined Sep 2001
23,392 Posts
Mark,

If you send me the templates I can make a set of ribs for you to put on the plans.

As for cutters, there's nobody better than Bob Hunt (Robins View Productions).

Andy
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Old Jul 22, 2009, 12:58 PM
I'm kind of a big deal
Tarpon Shawn's Avatar
Tarpon Springs, FL USA
Joined Feb 2002
852 Posts
Quote:
Originally Posted by mrittinger
....... If there is interest, I can post a build thread as well.

Mark
Yes please
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Old Jul 22, 2009, 01:19 PM
Really?!?
ChrisS's Avatar
Lost ...on the 3rd rock out
Joined Sep 2001
1,242 Posts
Put me down for a set of plans and cores as well Mark.

Chris
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