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In moment of weakness, I’m looking at an octopus 1012 and 1212. 7″ and 12″ linear drive travel respectively. What is our center-to-stop distance?
-Adam S._______________________________________________
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Hi Adam-
I suggest that you install a separate tiller arm for the drive rather than attach it to the quadrant. The choice of 12″ or 7″ drive depends on how long the tiller arm is from the center of the rudder shaft to the attachment point on the tiller arm. If you pop open the inspection port just aft of the steering pedestile, you can guage the turning range of the rudder between stops. The Edson catalogue has some info on these calculations.
We installed a 12″ range Octopus drive. I suppose a 7″ drive would work with a shorter tiller arm since they have plenty of power. Got the tiller arm from Hamilton Marine.
Rudder movement is quite small under most conditions so I doubt there would be much difference in power consumption between the two drives.
We choose the 12″ drive because the longer tiller arm put less lateral force on the rudder shaft. See discussion on this site on upper rudder shaft bearing issues.Quent
Clairebuoyant #132 -
Hi Adam-
I suggest that you install a separate tiller arm for the drive rather than attach it to the quadrant. The choice of 12″ or 7″ drive depends on how long the tiller arm is from the center of the rudder shaft to the attachment point on the tiller arm. If you pop open the inspection port just aft of the steering pedestile, you can guage the turning range of the rudder between stops. The Edson catalogue has some info on these calculations.
We installed a 12″ range Octopus drive. I suppose a 7″ drive would work with a shorter tiller arm since they have plenty of power. Got the tiller arm from Hamilton Marine.
Rudder movement is quite small under most conditions so I doubt there would be much difference in power consumption between the two drives.
We choose the 12″ drive because the longer tiller arm put less lateral force on the rudder shaft. See discussion on this site on upper rudder shaft bearing issues.Quent
Clairebuoyant #132_______________________________________________
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