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Measuring Control Throws

Old 10-18-2009, 06:14 PM
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thehaze
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Default Measuring Control Throws

What's the most accurate way to measure the throws for the various control surfaces on a model?

Usually I just eyeball it, but I'm thinking there's got to be a more precise way of doing it. Any tips?
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Old 10-18-2009, 07:05 PM
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cyclops2
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Default

Very carefull take off.
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Old 10-18-2009, 07:14 PM
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cyclops2
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Default too many variables.

Size, wing loading, amount of excess power to recover with, type of air foil, COG position, outline shape of the wing & tail surfaces, how sensitive the servos are at just off of the neutral position, how much drag & how far from the center line of the prop & center line of the fuselage.........1 relates to powered flight, the other relates to doing a dead stick landing.
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Old 10-18-2009, 07:55 PM
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Sky Sharkster
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Default Throw + Go?

Hello thehaze,
Depends on whether you want the deflection measured in inches;
http://www3.towerhobbies.com/cgi-bin...&P=8(Incidence
Or degrees, for that you can use a dollar-store protractor.
If the plans/instructions call for 1/2 inch "Up" and "Down" for example, that's measured at the widest part of the control surface, with the control stick at full movement.
If there are no specific figures to go by, as Cyclops said, there's a bunch of variables to consider. I believe it's better to err on the safe (lower deflection) side, if that's not enough movement, land and move it up a notch.
If your radio has dual rates, you have two chances to get it right
Without knowing more about the model, it's hard to give an exact answer.
Good Luck!
Ron
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Old 10-20-2009, 12:43 AM
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cyclops2
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Default Lead is death. 2X the recommended power is ALWAYS correct.


All my planes are never more than 1 lb per square foot of wing loading.

None are allowed to solo unless they can fly straight up while I am holding it. ........Piper Cubs to WW II....nitro powered.

Electrics have less TESTOSTERONE in their armpits. They pull out of my hand at about a 45 degree angle.

I have always crashed EVERY underpowered airplane.

Rich
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