Replacing Roll Actuators

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Removed the old right-side actuator (bottom) and was measuring the difference in length (the old one was 21″, the new one is 18″ but the difference because of the tang is 2.5″).  The new ones are 3″ bore (the old ones are 1.5″ bore) which will yield 4x the force thanks to our friend pi*r²!

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