05-07-2018 07:32 AM
05-14-2018 01:47 PM
On a sailboat a GoPro could be attached to the standad rigging or to the the mast At the foot under the .
The standard rigging comprises a series of stainless steel cables that keep the mast in place. These cables are about 7-9 millimeters in diameter.
As for the mast the diameter can vary enormously depending on the size of the boat and the functionality. Also its best to talk in terms of circumfernece as the mast is not circular but oval shaped. The circumference can vary from 30 to 120 centimeters depending on the size of the boat.
Here is a link to wikepedia page on standard rigging: