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Old May 24, 2010, 08:16 AM
Crashing into the sky!
jackosmeister's Avatar
Auckland NZ
Joined Aug 2007
7,389 Posts
HXT900's and pylon racers dont mix. Sure they may be the equal in terms of speed and torque to an HS55 but they have horrific resolution and shocking QC, its a friggin $3 servo haha!, stick them in foam parkflyers and such. Putting them in a plane doing 120mph is not wise, and personally I wouldnt wanna be within 2km of it in flight.

Dont cheap out on servos, You need zero slop, ultra high resolution, and perfect centering over everything else in a pylon racer.
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Old May 24, 2010, 04:50 PM
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keehopper's Avatar
Albuquerque NM
Joined Mar 2009
82 Posts
did some testing with stock motor and a Hyperion 1800 35c 3s battery. with props. 4.1x4.1 fewest amps (20) and highest rpm, 4.75x5.5 most amps (30+) fewest rpm but only 5mph faster. I am 5100 ft. altitude. Anyone do any testing with the stock set up? Nothing came over 125mph on the scale. The 4.75x4.75 came in at 112....kind of surprised!
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Old May 24, 2010, 08:52 PM
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keehopper's Avatar
Albuquerque NM
Joined Mar 2009
82 Posts
Where are all of the videos of everyones planes? Anyone actually get one of these things to fly and capture it on video? I did see these on this thread...cool stuff!
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Old May 24, 2010, 08:57 PM
KK6MQJ
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Joined Sep 2004
13,742 Posts
I tried but the cameraman blinked and missed it.
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Old May 24, 2010, 08:57 PM
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denver colorado
Joined Jan 2004
356 Posts
Check out page 27. There,s a video of a hopped up one (arc motor) and a link to my video of a bone stocker
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Old May 25, 2010, 05:19 AM
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buffalo NY
Joined May 2010
8 Posts
dammit towers move back the date again its now late june
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Old May 25, 2010, 08:21 AM
Speed Demon
GregG's Avatar
Antioch,CA,USA
Joined Dec 1999
12,323 Posts
They had better gear up for a big shipment if this thread is any indication of how many want it.
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Old May 25, 2010, 08:53 AM
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keehopper's Avatar
Albuquerque NM
Joined Mar 2009
82 Posts
I better not fly maden until I know I can get parts... You don't have to fly these at high speed at first do you? How slow can you fly these just to learn how they react? Is there a better prop to use than the speed prop and get these trimmed out...I can just see me throwing it in the air, hit the gas..... and by - by, see ya! Anyone seen my plane?
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Old May 25, 2010, 10:53 AM
3D wing innovator
MikeRx's Avatar
Dallas, Texas
Joined Dec 2009
2,211 Posts
Quote:
Originally Posted by keehopper View Post
I better not fly maden until I know I can get parts... You don't have to fly these at high speed at first do you? How slow can you fly these just to learn how they react? Is there a better prop to use than the speed prop and get these trimmed out...I can just see me throwing it in the air, hit the gas..... and by - by, see ya! Anyone seen my plane?
Not to scare you, but this plane is hard to slow down..even at its lowest practical speeds, it appears fast because of its size. With that said, you may want to try a 5x3 or 5x4 prop for possibly more thrust at lower speeds.On the other hand, the rifle tracks very well and offers no surprises. Wind helps slow landings, which as the instructions say, will take a much longer and shallower approach than usual. Use an experienced launcher. Keep the plane in a constant turn with ̃he top of wing facing you as often as possible. You do not need parts..if you destroy one part, the rest will likely need replacing. The biggest danger is the firewall coming out, and the fuse developing cracks and seam splits.. Repairable with the usual glassing methods. Now go fly!
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Last edited by MikeRx; May 25, 2010 at 10:58 AM.
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Old May 25, 2010, 11:07 AM
The Kid
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Detroit, MI
Joined Dec 2007
2,587 Posts
An APC 5.7x3 draws about the same amps as the 4.75x4.75. So you could try that out for "lower" speeds.

Also, it makes a killer noise when it fully unloads in the air
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Old May 25, 2010, 12:06 PM
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Davenport, IA
Joined Aug 2003
280 Posts
So, what does everyone recommend for servos?
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Old May 25, 2010, 01:17 PM
3D wing innovator
MikeRx's Avatar
Dallas, Texas
Joined Dec 2009
2,211 Posts
Quote:
Originally Posted by tman52804 View Post
So, what does everyone recommend for servos?
the ones recommended are good. Im using hitec 45s... they seem to work ok now that ive upgraded my esc. I want to try the dymond d47s
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Old May 25, 2010, 01:19 PM
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tman52804's Avatar
Davenport, IA
Joined Aug 2003
280 Posts
Yeah, but the recommended ones are out of stock to late June. My rifle should be here today.
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Old May 25, 2010, 01:37 PM
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keehopper's Avatar
Albuquerque NM
Joined Mar 2009
82 Posts
I have a 6x4 that I ran up on the plane and drew about 30amps with the stock motor and the Hyperion 1800 battery. May try that and see how it goes! It should give me better lift and maybe not so much speed.....maybe!
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Old May 25, 2010, 01:43 PM
You down with EPP?
johnnyrocco123's Avatar
Houston, Tx
Joined May 2009
6,851 Posts
I would'nt go any bigger than maybe a 5.25 diameter prop. I would keep tham square. Start with a 4x4 and work up from there. I would imagine that the stock motor on a 4x4 prop would be easily manageable.
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