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Old Oct 02, 2014, 01:19 AM
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Joined Nov 2012
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Quote:
Originally Posted by oldsamer View Post
Why is "moment" used to describe the relative position of weights on a seesaw?
Moment = force X distance

2 pounds at 1 ft = 2 ft-lbs = 1 pound at 2 ft

On the seesaw, 100 lb at 6' = 600 ft-lbs moment = 150 lb at 4'
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Old Oct 02, 2014, 05:27 PM
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Wamp's Avatar
Joined Mar 2012
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Quote:
Originally Posted by TennFlyer View Post
Moment = force X distance

2 pounds at 1 ft = 2 ft-lbs = 1 pound at 2 ft

On the seesaw, 100 lb at 6' = 600 ft-lbs moment = 150 lb at 4'
Thanks, it is creeping back in
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Old Oct 11, 2014, 03:05 PM
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United States, TN, Nunnelly
Joined Aug 2012
673 Posts
I have a set of Eflite S75 servos and an Eflite Park 480 from my retired Mini Pulse XT. Would those servos work good with this plane?
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Old Oct 11, 2014, 07:16 PM
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United States, KS, Rose Hill
Joined Sep 2007
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Yep.

L.
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Old Oct 19, 2014, 07:53 AM
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United States, TX, El Paso
Joined Jan 2011
264 Posts
Quote:
Originally Posted by GLHS592 View Post
I have a set of Eflite S75 servos and an Eflite Park 480 from my retired Mini Pulse XT. Would those servos work good with this plane?
I've always been leery of using salvaged servos. Servos are mechanical and eventually wear out.
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Old Oct 19, 2014, 10:51 PM
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Leawood, KS
Joined Nov 2010
89 Posts
Just got a G-Force G10 motor from Value Hobby, and mounted it into my Leader. A little higher KV than the Power Up 480 plus motor, and quite a bit more power. I got a bit of work travel now, so I'm not sure when it is going to go up, but before winter sets in, I hope. The 480 plus, is going to move to a Mini Pulse.
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Old Oct 21, 2014, 01:25 PM
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United States, MA, Medfield
Joined Jul 2010
854 Posts
Quote:
Originally Posted by sjair View Post
Just got a G-Force G10 motor from Value Hobby, and mounted it into my Leader. A little higher KV than the Power Up 480 plus motor, and quite a bit more power. I got a bit of work travel now, so I'm not sure when it is going to go up, but before winter sets in, I hope. The 480 plus, is going to move to a Mini Pulse.
I looked up the G10 and it's specced at 140g which is I think a fair bit heavier than the PU 480 Plus.

Did you have to do anything to keep the CG correct?

-l2t
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Old Oct 21, 2014, 11:20 PM
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Leawood, KS
Joined Nov 2010
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G10 shows at 95 grams on Value Hobby. Weighed in at 111 grams on my scale. I haven't balanced, yet, but I got enough room for adjustment on the battery. Shouldn't be a problem.
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Old Oct 24, 2014, 07:00 PM
What tree?
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Yucca Valley, California
Joined Aug 2005
2,771 Posts
I'm thinking this is in my future.

I've got a spare Turnigy Park 480 and am looking for something a bit more aerobatic than my MPXT. And for $110 it looks like an absolute steal!
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Old Oct 24, 2014, 09:16 PM
Rockin' & Flyin'
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Virginia Beach
Joined Dec 2009
2,858 Posts
It's s solid plane.
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Old Oct 25, 2014, 02:19 PM
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Bay Area CA
Joined Jan 2011
3,996 Posts
This is just one of those planes that is a keeper.
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Old Oct 25, 2014, 05:35 PM
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United States, IN, Indianapolis
Joined Oct 2012
653 Posts
Definitely my favorite and go to. When I had a RX glitch and toothpicked my first one I immediately picked up another.
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Old Oct 26, 2014, 01:01 AM
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Leawood, KS
Joined Nov 2010
89 Posts
Flew it with my Gforce G10 motor. Much better than the Power Up 480 Plus I was using. I still wouldn't call it a screamer, that's what my Extra 300, Dogfighter, or Stryker are for. I'm flying with the same 11x7 prop and 3 cell battery, as I was on the prior motor. Before I thought it was sluggish, now it's a very competent sport plane.
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Old Nov 03, 2014, 09:06 AM
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Fayetteville, PA
Joined Dec 2002
233 Posts
Just picked up my Leader 480 the other day and I'm having a good time putting it together so far. I was gonna' go with a Spektrum AS3X receiver but changed to a Futaba 6 channel with a Guardian 2D/3D Stabilizer.

One thing I noticed though is it seems to have a degree or so of "up thrust" built into it. In fact, the top left corner of the firewall (looking from the front) looks like its warped back a little. Anyone else have this problem? I shimmed it with a few washers and now it's zero/zero.

The gear looks a little flimsy and the wheels are out of round too. I have some replacements but it would be nice if it came with a serviceable set.
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Old Nov 19, 2014, 09:12 AM
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United States, TX, El Paso
Joined Jan 2011
264 Posts
Quote:
Originally Posted by Vulgar Vulture View Post
Just picked up my Leader 480 the other day and I'm having a good time putting it together so far. I was gonna' go with a Spektrum AS3X receiver but changed to a Futaba 6 channel with a Guardian 2D/3D Stabilizer.

One thing I noticed though is it seems to have a degree or so of "up thrust" built into it. In fact, the top left corner of the firewall (looking from the front) looks like its warped back a little. Anyone else have this problem? I shimmed it with a few washers and now it's zero/zero.

The gear looks a little flimsy and the wheels are out of round too. I have some replacements but it would be nice if it came with a serviceable set.
The 480 is such an honest, balanced flier that gyro stabilization is hardly necessary. If you reduce Aile & Elev movements by 1/2 that recommended, it flys as like an extension of your desire.

The firewall is "canted" for a 480 motor. It fly's better with a little more, especially when a larger motor in installed. Expect to enlarge the cowl motor opening.

The gear is "flexible", check it after every flight for piece-of-mind. When I built this one, I gorillaed the mains in so they wouldn't hogout the slots. After 100s of landings and touch and gos they are holding up with no problem.
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