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Old Aug 28, 2009, 05:06 AM
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Calculator for pinion, head-speed, motor

I hope this pic uploads big enough to read.
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Old Aug 28, 2009, 12:26 PM
Still a n00b.
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Quote:
Originally Posted by skyzoid
I hope this pic uploads big enough to read.
Nice work.

School teacher?


grnbrg.
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Old Aug 28, 2009, 05:34 PM
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Thanks. No, can't teach , just sharing my learnin'. lol
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Last edited by skyzoid; Aug 29, 2009 at 09:13 PM.
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Old Aug 28, 2009, 08:52 PM
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Great, I've figured this one out previously. What I really need is a power predictor for home made BL rewinds I've made for my Eflite Blade CP2, that does this and also has a airfoil profile lift to AoA plotter that calculates needed rpm/power (watts) to angle of attack for hover and climb.

Sort of a Motor Drive Calculator for helis

I guess this is asking for too much?

Thanks anyway it's a good, simple, calculation helper.
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Old Aug 28, 2009, 08:58 PM
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nice work. Ive been looking for a way to find head speed and see what different sized pinions will have on it.
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Old Aug 28, 2009, 09:01 PM
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Quote:
Originally Posted by Looooeeee!
Great, I've figured this one out previously. What I really need is a power predictor for home made BL rewinds I've made for my Eflite Blade CP2, that does this and also has a airfoil profile lift to AoA plotter that calculates needed rpm/power (watts) to angle of attack for hover and climb.

Sort of a Motor Drive Calculator for helis

I guess this is asking for too much?

Thanks anyway it's a good, simple, calculation helper.
Not a problem. We'll get right on it. Uh...let's see now. E=mc to the ... uh. Ok.
I think I got it.

Calculate the Bending Stress and Shear Stress in a Screw Auger Due to Bending and Torsion
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Old Sep 05, 2009, 12:29 AM
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http://www.readyheli.com/Online_Head...lator_s/81.htm

Look here and enter your info for what you are requiring
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Old Sep 16, 2009, 09:21 PM
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Quote:
Originally Posted by Bushido
http://www.readyheli.com/Online_Head...lator_s/81.htm

Look here and enter your info for what you are requiring
Doesn't really calculate for smaller CP helis like the EFlite CP2.. No weight, no rotor diameter, no Lipoly mAh capacity, no calculation of lift for various types of blade airfoil shapes, ( I made my own semi flat bottomed blades with a Eppler 205 profile.) no length of blade, doesn't take into account small motors..

Kinda limited...
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Old Sep 18, 2009, 09:31 PM
Quit asking ???s, get a Quark!
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Quote:
Originally Posted by Looooeeee!
Doesn't really calculate for smaller CP helis like the EFlite CP2.. No weight, no rotor diameter, no Lipoly mAh capacity, no calculation of lift for various types of blade airfoil shapes, ( I made my own semi flat bottomed blades with a Eppler 205 profile.) no length of blade, doesn't take into account small motors..

Kinda limited...
try this

http://dhrc.rchomepage.com/calcAdvanced.htm

Da Wolf
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