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Servo rules - 2/5/2010 5:49 AM   
Kevin Matney



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From: Erie, MI, USA
Status: offline 		We have a need to make some changes in our rules about servos.The rule about servos with only 4 grommets and
40 oz,in.torque. We now can get Digital Micro with 2 grommets and 60 oz, in.torque If the Vendor thinks it is ok to make them with only 2 grommets, it must be ok for us to use them in our racers?Do you think we need to change the rules?

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RE: Servo rules - 2/5/2010 6:47 AM   
g.hodgesrc


 

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Status: offline 		Kevin,

Which classes are you suggesting to change the servo rules? Locally in Q-25 we allow (2) Hitec S81MG or S85MG (2) mounting screw servos for V-tails, but require at least a (4) screw mounting Hitec 225MG or equivalent servo for the ailerons. No failures to date from our group. I think Don Stegall had mentioned he had a Q-25 / 424 racer that used only (2) mounting screws per servo without any failures.

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RE: Servo rules - 2/5/2010 7:50 AM   
Kevin Matney



Posts: 281
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Joined: 11/29/2003
Last Login: 3/8/2010
From: Erie, MI, USA
Status: offline 		424 and 428 and 422

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RE: Servo rules - 2/5/2010 10:15 AM   
BarryReade


 

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Status: offline 		It has always been a safety issue and not a torque issue.  Would you build an aileron with only two hinges?  I wouldn't because if one broke you would most likely crash.  If you had three or more hinges on a control surface the odds are you would get it down OK.  If you only have two screws on a servo and one fails that servo is toast and will not be able to do its job where a four screw servo could lose one screw at each end and still function.


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