The video on YachtThruster's website is very helpful. That is where I started. It is always scary for me to drill holes in my hull
, but it is the same as for any thru-hull fitting install. I would not attempt a tunnel system on my own.
I posted some pictures in my profile but the video is much more informative. Notice the "speedy" wrench in the interior
picture. Saved some knuckles. I wish I had cut off the forward studs as it took too much time to crank the nylon locking nuts.
My only criticism of the thruster is the relay design. Impossible to wire if mounted so I did not physically mount the relay. Had to install 2 12v batteries in the hold forward of our shower
and aft of the chain locker. Ran the control wiring
back to my pedestal
Tech support from Alex was great. He was even available on a Saturday morning when I was installing.