Pushrod for MK Bellcrank

[Dean Pappas]

Good to hear from you Reeves,
I would put a support in the middle. It works best if the arc of the servo arm is belly-up and belly down at the input to the MK unit. (or vice versa) That way there is a spot that naturally stays still half way down the rod, or so. this assumes that the elevator servo is laid on its side.
Regards,
    Dean

-----Original Message-----
From: Reeves [mailto:reeves at mtaonline.net]
Sent: Thursday, April 17, 2003 4:22 PM
To: discussion at nsrca.org
Subject: Pushrod for MK Bellcrank


Hi, It's time to go flying here in Alaska. What are you guys using for the pushrod to the MK Bellcrank? I have the carbon fiber rods from Central Hobbies I think they are .208 OD and the 4-40 Titanium fittings . I am using the 3mm MK fittings at both the servo and bellcrank. Servo will be a JR 8411 SA.  My concern is do I need to support the pushrod in the middle somehow to lessen vibration or movement under high G loads? I am installing it in an Alliance. Thanks, Reeves.

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