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Old Dec 11, 2009, 10:00 AM
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United States, TN, Bartlett
Joined May 2005
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Autogyro Main mast pivot point

How come the pivot point is not closer to the center of the main shaft? It seem that the pivot point being way back would put stress and load on the servo which are trying to pull down all the time.

?
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Old Dec 11, 2009, 11:30 AM
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imsofaman's Avatar
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So you can have more leverage. You see where you have intersection line drawn? If I were to put th pivot there, the servos would work harder.

I just didnt stick the bolt anywhere....there is a thought process behind it.......
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Old Dec 11, 2009, 02:12 PM
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No worries Dave! Since the photo in the thread happens to be of MY gyro, I will attest that it flies excellent in that configuration. It is certainly one of the best flying tractor gyros I own. There will always be a load on the servos in flight(Regardless of where the pivot point is), but the mechanical advantage is a plus for sure. I too had the same question you did ssrobzoom, but with all the Kellett profiles out there flying so well I decided not to change the head design. If it ain't broke don't fix it.
Regards,
-Mike
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Old Dec 11, 2009, 03:48 PM
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Stourport on Severn ,Worcestershire, United Kingdom
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It only needs to be inline if you use seperate roll and pitch control as I did.


She's been gone six whole days

Regards Rich
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Old Dec 11, 2009, 09:03 PM
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She's been gone six whole days? What do you mean??
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Last edited by ssrobzoom; Dec 13, 2009 at 11:15 AM.
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