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Old Jun 21, 2003, 12:00 PM
Been There! Done That!
boomerace's Avatar
Eugene, Oregon, United States
Joined Sep 2001
19,187 Posts
Monster Astro SS Maiden and new problems

Just came back from the church from the maiden. I was happy to see the wing stood up fine under full power loops ,etc. So decided I would see if it would survive a full power outside loop from inverted. Wing did fine but was afaraid I was going to lose the tail feathers. They started vibrating enough so the up and down flapping was very visible!. The carbon tape on the bottom did fine in normal loops etc. but looks like I'm gonna have to reinforce the upper surfaces of the elevator! I think I will just laminate a 1/64th plywood strip to the LE and top of elevator and see if that won't provide enough stiffness! But I'm still kicking around other Ideas. I guess it really would make more sense to replace the tail with say 1/8" or thicker balsa! I think I'd better scrap the Astro 05 SS idea! Vertical as expected is again unlimited and happens pretty fast! Well back to the workshop!
More later! Love the look on peoples faces when with no noise or fuss the bird just takes off straight up!
boomer
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Old Jun 21, 2003, 12:55 PM
wild in the park?
wherndon's Avatar
McDonough, GA
Joined Mar 2003
1,614 Posts
always pushin' the envelope...

let's see some pics of this monster in action.

Bil
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Old Jun 21, 2003, 01:06 PM
BOSS
j_z_123's Avatar
New Jersey (excl EWR), United States
Joined Apr 2002
4,984 Posts
Sounds awsome! Unlimited verticle with the slowstick <in homer simpsons voice- gagaaaaggaaggaga mmmmmmm unlimited vertical> I wonder how long it would take to glide down from a speck way up in the sky..?


Jon
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Old Jun 21, 2003, 01:12 PM
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jimsp's Avatar
Sayre,PA
Joined Sep 2002
1,664 Posts
Perhaps you could use 3/4oz fiberglass applied with Minwax Polycrylic. The Polycrylic wets the fiberglass very well and pulls it down to the surface you are covering so it is very easy to apply. Iíve been looking at it for strengthening the SS wing in preparation for a power upgrade. According to this article http://rcgroups.com/links/index.php?...at=202&id=4018 the combination weights about 50gr/sq yd. I figured that if I covered the bottom of the wing it would add about 1/2oz.

Below are photos I had taken testing this combination using the leftovers from the tail feathers. One shows the reduction in deflection with the fiberglass just applied to the bottom. The other shows you can bend it a full 180 without cracking. Normally it will crack at about 90 deg.
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Old Jun 21, 2003, 02:03 PM
Been There! Done That!
boomerace's Avatar
Eugene, Oregon, United States
Joined Sep 2001
19,187 Posts
Well guys was a real simple fix! 3/4" fiber reinforced packing tape in the Zagi pattern and it is now maxie stiff! Kind of spoils the inherent good looks of the SS however as it now looks like it's ready for shipping! Good looking SS yea right! Actually the pattern looks kind of cool! Don't think I'll go try it right now as thunderheads have moved in and I have an adversion to standing in a open area with a 5 foot lightning rod in my hands! See if I can get some action pics the next couple of days! Sending of warm fuzzies or a group hug is appreciated!
boomer
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Old Jun 21, 2003, 02:04 PM
Been There! Done That!
boomerace's Avatar
Eugene, Oregon, United States
Joined Sep 2001
19,187 Posts
jimsp,
That looks very promising! Keep us posted on the final results!
boomer
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Old Jun 21, 2003, 02:20 PM
wild in the park?
wherndon's Avatar
McDonough, GA
Joined Mar 2003
1,614 Posts
here's some warm fuzzies...

I'm not good with hugs.

Bil
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Last edited by wherndon; Jun 21, 2003 at 02:23 PM.
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Old Jun 21, 2003, 02:31 PM
Been There! Done That!
boomerace's Avatar
Eugene, Oregon, United States
Joined Sep 2001
19,187 Posts
Bil,
Me neither unless she's young and pretty! But thanks for the warm fuzzys!
boomer
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Old Jun 23, 2003, 01:08 PM
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Eagle Mountain, Utah
Joined Mar 2003
81 Posts
Got a pic of the 'zagi pattern' for the uneducated ??

Thanks.
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Old Jun 23, 2003, 01:44 PM
Been There! Done That!
boomerace's Avatar
Eugene, Oregon, United States
Joined Sep 2001
19,187 Posts
Quote:
Originally posted by Desert-Racer
Got a pic of the 'zagi pattern' for the uneducated ??

Thanks.
Pic 1
boomer
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Old Jun 23, 2003, 01:46 PM
Been There! Done That!
boomerace's Avatar
Eugene, Oregon, United States
Joined Sep 2001
19,187 Posts
Rudder both sides same Now no flex!
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Old Jun 23, 2003, 03:16 PM
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Eagle Mountain, Utah
Joined Mar 2003
81 Posts
Thanks !! That's a cool idea.



..
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Old Jun 23, 2003, 03:22 PM
Mark Imbriaco
Chesapeake, VA
Joined Apr 2003
259 Posts
"It's ugly, but at least it's grossly overpowered!"
-Me
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Old Jun 23, 2003, 04:16 PM
Been There! Done That!
boomerace's Avatar
Eugene, Oregon, United States
Joined Sep 2001
19,187 Posts
Quote:
Originally posted by NeuronBasher
"It's ugly, but at least it's grossly overpowered!"
-Me
It was ugly before I overpowered it!!!
boomer
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