Quote:
Originally Posted by netwolf
The problem is not the weight of the OTA but the tube length. The longer the length the more the turning moment Nm (newton meter) is, Force(=mass x gravity or acceleration) x distance. So you need to keep this in mind when considering mount capacity.
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Fahim, the tube length does not have detrimental effect to weight capacity of the mount as it is balanced per se
However, the tube diameter does.. bigger diameter, the centre of tube mass is further from RA axis. That means the bigger counterweight (or further away, which is the same thing as inertial momentum is concerned).
On the other hand, the longer tube will pose additional load to worm gear (for the reasons you mentioned).