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Dec 14, 2012, 05:37 PM
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Rich Uravitch's Avatar
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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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Dec 14, 2012, 05:44 PM
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turbonut's Avatar
now that looks cool!
Dec 14, 2012, 06:37 PM
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Kevin Cox's Avatar
Nice!
Dec 15, 2012, 10:44 AM
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PANTHERFLYR's Avatar
Awesome Rich! Nick
Dec 15, 2012, 11:28 AM
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LuvEvolution7's Avatar
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
Jan 02, 2013, 05:39 PM
Just having fun before I die!
BadLemon's Avatar
Rich
Your S3 Viking is very nice what are the spec's for your 90mm? I'm guessing the wings span is around 85"
Jan 04, 2013, 02:44 AM
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sloperjoe's Avatar
I like it!
are those swing forward retracts? nice idea

Joe
Jan 04, 2013, 06:57 PM
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Rich Uravitch's Avatar
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The full scale S-3 gear retracts aft, which I didn't want to do on the model because of the aft CG shift when the gear was retracted.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
Jan 05, 2013, 02:07 AM
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sloperjoe's Avatar
thanks for the pic, I was wondering how you did that, now that is "thinking out of the box", very nice!
Joe
Jan 09, 2013, 06:52 PM
Just having fun before I die!
BadLemon's Avatar
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.
Last edited by BadLemon; Jan 16, 2013 at 03:28 PM.
Mar 11, 2013, 02:02 PM
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Rich Uravitch's Avatar
90mm version came out at 16lbs, ready to fly
Rich
Mar 11, 2013, 02:11 PM
Hey Guys, Watch This.......
mike2663's Avatar
Rich will there a short kit?

Mike
Mar 11, 2013, 02:19 PM
Just having fun before I die!
BadLemon's Avatar
Looks great Rich so when is the maiden? Good Luck!
Mar 11, 2013, 02:25 PM
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eatond's Avatar
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
Mar 11, 2013, 06:18 PM
Registered User
Rich Uravitch's Avatar
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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