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Author Topic:   Nauset waterline

roccus posted 05-16-2002 06:08 PM ET (US)
I wonder if anyone knows exactly where the waterline should be on a '69 Nauset. I currently have a stripped-out hull - no engine, console, seats, etc. It's not really feasible for me to weight the boat and then float it for a scum line, or I would. Thanks
Tom W Clark posted 05-16-2002 09:52 PM ET (US)
There's no way you can get an accurate waterline until you have your boat rigged and ready to go.
In the old Boston Whaler Owner’s Manual they used to give dimensions for an approximate water line location. Even back then this was marginal at best.
Nowadays with power options and optional equipment being so varied, no two Nausets will float the same way.
You’re much better off waiting until you're done working on your boat and then float it and mark it, or float it and mark the bow and stern then use a laser level to "connect the dots."
jimh posted 05-16-2002 11:20 PM ET (US)
I have seen plenty of boats with bottom paint where the "waterline" used for painting was 2-inches or more above the real waterline when the boat was at rest and empty.
I would think that you'd want to paint the boat so the bottom paint was effective when the boat was left in the water, and most of the time a boat is sitting in the water with no one aboard it. Why paint it up 2-3 inches?
--jimh
Soho posted 05-17-2002 08:01 AM ET (US)
Roccus,
I feel your pain, I just went through this exercise as I relaunched my 69 Nauset. I spent alot of time trying to figure where to put it. Got good feedback from this forum. At the end of the day, once I had the boat rigged up I did put her overboard and marked where the wl was then pulled her out. It paid off as I am pretty close all the way around and am quite happy with the results. I can take some measurements for you over the course of the next few days, but results will vary based on configuration of the hull etc.
Let me know if I can help.
Ciao,
Ron
Tom W Clark posted 05-17-2002 11:39 AM ET (US)
jimh,
Waterlines that are elevated above the water are done as the result of a couple of factors:
No boat is moored in water that is perfectly flat. Even the most well protected marina will get some wake and wind ripples running through it. Thus the water is constantly in contact with the hull at point above the true float level. If the bottom paint is at the true waterline then a "green beard" and/or scum line discoloration will occur. Bringing the bottom pain up helps eliminate or disguise this problem.
I much prefer he look of a waterline that is close to the water. When I did my second Montauk I held it to about an inch and just resigned myself to doing a little scum line scrubbing periodically. 2 or 3 inches seems excessive on a little 17 boat but it is very common.
High waterlines also occur when repainting a hull that has been painted before. I think there is always the temptation to carry the paint a little further up the hull to cover an old and perhaps crooked paint job and any other blemishes that may have appeared. Over time the painted waterline creeps upwards.
jimp posted 05-17-2002 01:15 PM ET (US)
Concur with Tom.
What also looks sharp is a 1" red boot top stripe 1" above a blue bottom.
JimP
roccus posted 05-17-2002 09:42 PM ET (US)
Thanks guys. Sounds like good advice. I'll rig her and then splash her to find the water line. I intend to bring the paint up over the chine and incorporate a boot top stripe, in part to cover an area of crazing that I intend to seal with an epoxy barrier coat. The fun never stops.

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Author	Topic: Nauset waterline
roccus	posted 05-16-2002 06:08 PM ET (US) I wonder if anyone knows exactly where the waterline should be on a '69 Nauset. I currently have a stripped-out hull - no engine, console, seats, etc. It's not really feasible for me to weight the boat and then float it for a scum line, or I would. Thanks
Tom W Clark	posted 05-16-2002 09:52 PM ET (US) There's no way you can get an accurate waterline until you have your boat rigged and ready to go. In the old Boston Whaler Owner’s Manual they used to give dimensions for an approximate water line location. Even back then this was marginal at best. Nowadays with power options and optional equipment being so varied, no two Nausets will float the same way. You’re much better off waiting until you're done working on your boat and then float it and mark it, or float it and mark the bow and stern then use a laser level to "connect the dots."
jimh	posted 05-16-2002 11:20 PM ET (US) I have seen plenty of boats with bottom paint where the "waterline" used for painting was 2-inches or more above the real waterline when the boat was at rest and empty. I would think that you'd want to paint the boat so the bottom paint was effective when the boat was left in the water, and most of the time a boat is sitting in the water with no one aboard it. Why paint it up 2-3 inches? --jimh
Soho	posted 05-17-2002 08:01 AM ET (US) Roccus, I feel your pain, I just went through this exercise as I relaunched my 69 Nauset. I spent alot of time trying to figure where to put it. Got good feedback from this forum. At the end of the day, once I had the boat rigged up I did put her overboard and marked where the wl was then pulled her out. It paid off as I am pretty close all the way around and am quite happy with the results. I can take some measurements for you over the course of the next few days, but results will vary based on configuration of the hull etc. Let me know if I can help. Ciao, Ron
Tom W Clark	posted 05-17-2002 11:39 AM ET (US) jimh, Waterlines that are elevated above the water are done as the result of a couple of factors: No boat is moored in water that is perfectly flat. Even the most well protected marina will get some wake and wind ripples running through it. Thus the water is constantly in contact with the hull at point above the true float level. If the bottom paint is at the true waterline then a "green beard" and/or scum line discoloration will occur. Bringing the bottom pain up helps eliminate or disguise this problem. I much prefer he look of a waterline that is close to the water. When I did my second Montauk I held it to about an inch and just resigned myself to doing a little scum line scrubbing periodically. 2 or 3 inches seems excessive on a little 17 boat but it is very common. High waterlines also occur when repainting a hull that has been painted before. I think there is always the temptation to carry the paint a little further up the hull to cover an old and perhaps crooked paint job and any other blemishes that may have appeared. Over time the painted waterline creeps upwards.
jimp	posted 05-17-2002 01:15 PM ET (US) Concur with Tom. What also looks sharp is a 1" red boot top stripe 1" above a blue bottom. JimP
roccus	posted 05-17-2002 09:42 PM ET (US) Thanks guys. Sounds like good advice. I'll rig her and then splash her to find the water line. I intend to bring the paint up over the chine and incorporate a boot top stripe, in part to cover an area of crazing that I intend to seal with an epoxy barrier coat. The fun never stops.