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Old Dec 17, 2011, 08:24 PM
Pushing the envelope
Nicoflyer's Avatar
Valatie, N.Y.
Joined Jan 2006
408 Posts
Quote:
Originally Posted by headlessagain View Post
I'd expect a 2200 kv motor to run a 7x3,6x4 or 6x5 prop on 3 cells. What prop are you running & have you hooked up a watt meter to test your set up.
Andy
I'm running a 8X4DD GWS. I'm away for the weekend, that was a quick flight before I left.
I'll do some testing on it when I get back. I'm thinking to go with a hotter motor because it can use the extra noise weight anyway.
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Old Dec 18, 2011, 02:34 AM
Reap the wild wind
headlessagain's Avatar
Bristol,UK
Joined Feb 2007
4,033 Posts
Nice one Don
I noticed your Spitfire vid on YouTube. Was that built from a plan and if so, is there a build thread anywhere?
Andy
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Old Dec 18, 2011, 05:51 PM
beemerdon
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USA, NC, Charlotte
Joined Nov 2009
787 Posts
Andy, I got the plans for the Spitfire from this site;

http://www.rcgroups.com/forums/showthread.php?t=1012551

but I couldn't fly it and the last time it crashed it broke into three peices so it's in Depron Heaven right now. I have flown some of the profile planes he has and they did great but I didn't use dihedral on the Spitfire, plus it was tail heavy, and I just couldn't get it to fly so I abandoned it.

The Funbat, or in my case the Stingbat (the Stingray is from Ken who does all the plans on the above link) flies great right off the drawing board. SO much more fun than the Spit.

Don
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Old Dec 18, 2011, 07:23 PM
Registered User
Joined Mar 2011
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Hi,

is there a tiled plan for the stingbat so we can build at home.

Thanks

Nick
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Old Dec 18, 2011, 07:30 PM
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chris1379's Avatar
United States, OH, Eaton
Joined May 2006
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Quote:
Originally Posted by Nicoflyer View Post
I'm running a 8X4DD GWS. I'm away for the weekend, that was a quick flight before I left.
I'll do some testing on it when I get back. I'm thinking to go with a hotter motor because it can use the extra noise weight anyway.
Just remember a bigger motor will demand a bigger battery. Then it's a matter of what will fit.

Chris
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Old Dec 18, 2011, 07:30 PM
CNC Cutter
birdofplay's Avatar
United States, IN, Indianapolis
Joined Dec 2005
8,609 Posts
Download the latest Adobe Reader X ! It's free

It has a print tiling feature so you can just print full sized pdf plans.

which are here ...

http://www.rcgroups.com/forums/showp...&postcount=358

Bob
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Old Dec 19, 2011, 01:06 AM
Reap the wild wind
headlessagain's Avatar
Bristol,UK
Joined Feb 2007
4,033 Posts
Thanks for the link Don. Perhaps I'll stick with the Funbat for now
Andy
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Old Dec 19, 2011, 09:22 AM
Pushing the envelope
Nicoflyer's Avatar
Valatie, N.Y.
Joined Jan 2006
408 Posts
I reconstructed the noise to accommodate a larger motor and lipo(2100mah).
I'm going from 100 watts to 250 watts!! Should be interesting,I should have a video on the V2 FunBat by tomorrow. I'll also post pics of the redo.
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Old Dec 19, 2011, 07:21 PM
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chris1379's Avatar
United States, OH, Eaton
Joined May 2006
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Is everyone else using blind nuts to mount the motor or will small wood screws work?
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Old Dec 19, 2011, 09:28 PM
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birdofplay's Avatar
United States, IN, Indianapolis
Joined Dec 2005
8,609 Posts
For this small model I'd use those swell Caphead wood screws with the washer built in .

The guy that sells bulk has em. and lots of other hardware.

Bob

PS they have blind nuts too - lots of sizes !
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Last edited by birdofplay; Dec 19, 2011 at 09:34 PM.
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Old Dec 19, 2011, 09:30 PM
beemerdon
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USA, NC, Charlotte
Joined Nov 2009
787 Posts
Small wood screws, or even some servo screws, will do just fine. I am using the blind nuts that came with Jon's firewall mount and I like them. Either is good.

Don
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Old Dec 19, 2011, 11:43 PM
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Australia, WA, Madeley
Joined Jul 2011
659 Posts
Servo screws are working well enough for me as well. No sign of movement yet.
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Old Dec 20, 2011, 02:35 AM
Registered User
Australia, QLD, Brisbane
Joined Dec 2011
4 Posts
Thanks Mic

Great Model. I have only flown it in +15knot winds so far and it flies great.

Flying Weight - 16 oz
CG - approx 2' 1/4" aft of LE.
5mm Foam Board
Carbon/Aluminum arrow shaft leading edge spar.
HXT900 servos
Turnigy 2209 1130kv swinging a 8x6 sport prop
25A ESC 2A BEC.
1300Mah 3S.

Not to quick and extremely maneuverable. Perfect for cutting streamers.
Very docile stall but does not glide to well.

A fantastic result for 2 evenings work. Thanks Mick
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Old Dec 20, 2011, 08:19 AM
Pushing the envelope
Nicoflyer's Avatar
Valatie, N.Y.
Joined Jan 2006
408 Posts
Well I flew it this morning and all did not go well.
The motor quit and I had no control and the plane went in and it went in hard! As bad as it may seam I was lucky because it crashed about 15' from me.
When I would go to full throttle the motor seamed to only get upto 3/4 throttle and pulse on and off?
When I bench tested the motor it was at about 23 amps and I had a C.C 25 amp ESC.
The only thing I did different from the bench to the flight was that I had new Nano Tech lipos 25-50 c and there were higher c rating which could of put it over the 25 amps limit of the ESC and also it didn't have good air flow over the ESC.

I'll build a new one this weekend with a 45 amp ESC and that should fix things!
I can't get over how well the plane took the impact! It was all intact just had stress cracks.I just find it easier to build a new one.

Will post a video later have to go to work.
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