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Old Dec 14, 2012, 06:37 PM
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Rich Uravitch's Avatar
Florida
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S-3 Viking redux

Got a little sidetracked with the 90mm S-3 build but it's back on track and just about ready for paint. Did manage to build another 70mm version (60" span) in the meantime though. Here are some shots. Centennial of Naval Aviation (CONA) scheme. "Flight" shots courtesy of PhotoShop!!

Rich
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Old Dec 14, 2012, 06:44 PM
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upland CA
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now that looks cool!
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Old Dec 14, 2012, 07:37 PM
EDF Jet Jam 2015 , May 28-31
Kevin Cox's Avatar
St. Louis Intl, Missouri, United States
Joined Jan 1997
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Nice!
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Old Dec 15, 2012, 11:44 AM
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Awesome Rich! Nick
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Old Dec 15, 2012, 12:28 PM
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St.Catharines, Ontario
Joined Jan 2009
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man, that's sweet. there's just not enough of these out there. I'd love a huge one for Dynamax power and a smaller version like either of these for every day flying.

Rich
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Old Jan 02, 2013, 06:39 PM
Just having fun before I die!
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DeKalb,IL
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Rich
Your S3 Viking is very nice what are the spec's for your 90mm? I'm guessing the wings span is around 85"
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Old Jan 04, 2013, 03:44 AM
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United States, WA, Vancouver
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I like it!
are those swing forward retracts? nice idea

Joe
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Old Jan 04, 2013, 07:57 PM
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Rich Uravitch's Avatar
Florida
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BadLemon.....just short of 87" with the ESM pods in place.
Joe.....good observation. I designed the models to accept off the shelf, 90 degree retracts to avoid expensive rotating units. The geometry works out great and the forward retraction allows the retracted gear to be mostly hidden by the nacelle. The full scale S-3 gear retracts aft, which I didn't want to do on the model because of the aft CG shift when the gear was retracted.
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Old Jan 05, 2013, 03:07 AM
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thanks for the pic, I was wondering how you did that, now that is "thinking out of the box", very nice!
Joe
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Old Jan 09, 2013, 07:52 PM
Just having fun before I die!
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DeKalb,IL
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Quote:
Originally Posted by Rich Uravitch View Post
BadLemon.....just short of 87" with the ESM pods in place.
Joe.....good observation. I designed the models to accept off the shelf, 90 degree retracts to avoid expensive rotating units. The geometry works out great and the forward retraction allows the retracted gear to be mostly hidden by the nacelle. The full scale S-3 gear retracts aft, which I didn't want to do on the model because of the aft CG shift when the gear was retracted.
Rich
Rich

Good size wing the Viking is going to be a very big EDF Jet! Do you have a release date set for the S-3 are you going to release the 70mm first then the 90mm some time later?

I see your using the E-Flite electric retracts are they the 25-.46 or the 60-120? I installed a set of 25-46's in a 52" OV-10 Bronco you designed. They work great and have held up well. I put a 105deg retract unit in the nose that retracts forward like scale and the mains to the rear. This keeps the CG correct in both up and down positions so no trim changes need to be made.
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Last edited by BadLemon; Jan 16, 2013 at 04:28 PM.
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Old Mar 11, 2013, 03:02 PM
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Florida
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90mm version came out at 16lbs, ready to fly
Rich
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Old Mar 11, 2013, 03:11 PM
Hey Guys, Watch This.......
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USA, TX, El Paso
Joined Dec 2003
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Rich will there a short kit?

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Old Mar 11, 2013, 03:19 PM
Just having fun before I die!
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DeKalb,IL
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Looks great Rich so when is the maiden? Good Luck!
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Old Mar 11, 2013, 03:25 PM
EDF Jet Jam 2015, May 28-31st
eatond's Avatar
United States, MO, St Charles
Joined Nov 2002
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Hi Rich,
the S3 looks great. Any chance you might make the EDF Jet Jam in September? It be great to see your S3's do their thing.

Dan Eaton
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Old Mar 11, 2013, 07:18 PM
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Florida
Joined Sep 2001
361 Posts
Thanks, guys. I plan to fly the large one later this week. Taxied it yesterday to check acceleration and it seems like there's more than enough available. Will let you all know, thanks again!

Rich
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