Anyone who’s response is to “learn to captain your boat” and similar… your saying this to a person who researched, planned, CUT a giant hole in their hull and successfully installed a bow thruster on their own. Logic dictates this person is HIGHLY unlikely to be lacking in basic seamanship skills…. Do the math. Amazing content, very focused and pleasant delivery, don’t change a thing Sir.

You made the measuring look sooooo easy. I think I would literally be scared to death of getting it wrong.....

Thinking about this, there is a quicker more elegant way to develop the center points for the tunnel. We know the location is the distance below waterline from manufacturer's recomme dation and as far forward as possible. Use a full scale foam mock-up of the motor/tunnel assembly to determine this second dimension. Now drill a small, pilot hole through one side. Using a somewhat stiff rod, thin stick, metal rule or whatever, create two marks on it with tape and a pencil. One is the vertical distance below the rub rail at the drilled hole location. Lay the rod against the hull and transfer this mark as an arc to the other side, onto a patch of tape in the approximate location of the second hole. Approximately level with the hole, mark the center of the bow onto tape. Use this point to mark a second, reference line onto the rod. With the end of the rod positioned at the respective rub rail and bow center marks, create arcs with the second mark intersecting the first arc to indicate center on the opposite side. Drill your second hole here.

Fantastic Sir. Sailing for me should be effortless and convenient. I have the same sailboat and after seeing yours I plan to add one in mine next haul out!

Great video & perfect timing for an upcoming project. Appreciate your detailed instructions on measuring & looking forward to the upcoming videos. Your older bow thruster videos are helpful also. Thanks!

Love it!

I am so glad that you did this series on bow thrusters. I have a Beneteau 400 Oceanis that I have thought seriously about installing a bow thruster on, but I also have some unique problems related to the layout of the 400 Oceanis I have. Mine is the two cabin version with the master cabin and head forward from the saloon. My bow area consist of a rather small chain locker, followed aft by the master head and then the master cabin. I am not sure that I physically have the room to put a bow thruster in where it will do any good, I think the chain locker is two small and high off the keel and that there is no room in the head deck area. I won't know till I watch all series and have a chance to look at the measurements that you show. Lucky, I am on the hard in the middle of a two year retrofit, so I should find out my answers fairly quickly I expect. Thank you in advance.

Hello again. As far as the marking tool you used for drawing the circumference of the holes to be cut.... Do you have the file for a three D printer? Thanks,...

Good, but too much talking not enough doing. Get on with it!