Discussion in '"Pocket" Downeast Boats (14-24ft)' started by RobBaker, Feb 8, 2020.
What model are you installing?
not that far yet
I'll have New England Bow Thruster do the install.
I think they use Lewar
Glassing the bottom side of the tube is the real PIA part.
You did a nice job mine will have a little more room underneath but understand the challenges. Drilled the pilot holes today and the unit arrived today need to measure the tube and get a hole saw next.
I think a hole saw will create an oblong or egg shaped hole due to the curve of the bow. I made a jig out of threaded rod to mark mine, then cut it out with a jig saw, i'm sure there a other ways to do it.
Mine was so close to the point of the hull on the bottom that I put a piece of foam core in there and glassed it all together. Was not able to wrap tube entirely because the clearance was so low but it was totally encapsulated and then I think I laid up like 4 overlapping layers of 1708 tabs all around it plus csm Inside and out then faired it with hull and deck with glass fibers from csm mixed in. If there is core remove it so tube is glassed to hull skin in and out. Fun project once you are past the interior grinding stage.
Drawing the proper diameter circle on a piece of paper, with center marked, then transferrng to hull makes it easy too.
My plan is to replace the pilot drill bit in the hole saw with a steel rod. The rod being long enough to go thru the hull on both sides. Go thru 90% on one side then pull it out and get the other side. If this works it should do away with the oblong shape hole.
won't work. the hole saw isn't deep enough.
Rob, post a pic of the plug. Want to see how thick the hull is there.
Genius good post, got me thinking. The standard hole saw is 1 3/4 deep for going thru a 2*4. They make a deeper one FREUD DHS4500 High Performance Hole Saw which is 2 3/8 inch deep which should help me but not resolve the issue you pointed out. Perhaps I can do most of the cut from the outside and finish up on the inside. Time will tell. My tube is small a little over 4.5 inches so that should also help. I'll have my jig saw handy just in case.
Rob, did you go with the Lewmar 110TT thruster?
Yes I did. The motor was almost 2" shorter then the Side-Power.
Hey Kenneth, can you post photos? I'm doing a minor refit on my old Dyer project and a thruster is on the dream list of upgrades.
My 22 sisu didn't have enough bow in water for one of them.Id practice docking if I was you
Brent I’ve studied this enough to determine that a thruster will work on my boat. Stay tuned to this thread should have a 4.5 inch hole within the next two weeks weather permitting it’s cold out there.
I've not got past the tube install as of yet.