bertram31.com

ktm_2000

let me get Mike riled up............ I agree with you that Epoxy is stronger than polyester and vinylester resin but I think vinlyester will be "good enough" for my application. Going back to physics class, Force = Mass x Acceleration my B25 is less than 50% of the weight of a B31 so any action I pu...

ktm_2000

I didn't get out of work until 6pm thursday night so I didn't get too much done, only setup a temporary jig to make a flange on the bottom of my doghouse and then cut strips of fiberglass. it was some 2x3 screwed together wrapped in some tape which resin wouldn't stick to. https://photos.app.goo.gl/...

ktm_2000

so there is a spectrum of strengths..... Original B25 - Molded fiberglass stern panel held in by a bunch of screws, cleat thru-bolted - pretty strong but towing with a non-stretchable tow rope allowed me to pull out the screws on the bottom and pop open my engine cover. Original B31 - wooden pieces ...

ktm_2000

I am not as concerned about the resin which I am using as the surface area is significantly larger than the plate itself. The plates are 6x14" but I was going to place them flat on the transom and then I was going to fill gaps and edges with filler to make a nice radius to put 3 layers of 1708 start...

ktm_2000

Carl, I'll be honest - I'm not too knowledgeable about metalworking. I have a drill press (for woodworking) and want to get the holes drilled off the boat, hopefully that keeps them straight. I believe the screws on the original cleat were 5/16", I will check as I still have the original screws too....

ktm_2000

Busy day today, I started off early and did the 1.5hr drive to goto LBI fiberglass for them to open at 8am bought 5 more gallons of vinlyester and 5 more gallons of polyester resin. Conference calls on the ride home and meetings straight through till 530 didn't allow any lunch time fun but after my ...

ktm_2000

I took Rocky's advice and am going with glassing in aluminum plates to mount the stern cleats into the back of my boat. Here's a pic of the stock which came in today along with one of the B25's original stern cleats. https://photos.app.goo.gl/kyxAjxaZRuVK9PaG7 I discussed the idea with my neighbor a...

ktm_2000

Cam, I've got a little window to make adjustments before I put the flange on the bottom edge of the doghouse after that I can only cut the top. I was planning on starting the window 49" above the deck, roughly the top of the blue line of the filler. https://photos.app.goo.gl/YF6GvBUXhUKgBhLP6 I had ...

ktm_2000

I pulled the doghouse out of the jig over lunch and put a little filler in the front seam, I think the shape came out well https://photos.app.goo.gl/rJGrue7nWL5hw8Vr8 I made it 80"/6'8" tall and I think it is a little bit too much given I was able to get 3" of camber. I might cut the top down 1-2" a...

ktm_2000

I'd need more than 11 years to get my boat to look anywhere near as good as yours if I even could. It looks amazing!!!!!!!!!!!!!

ktm_2000

Beautiful boat!!!! I love the custom helm and hard top. I've seen pics of your boat over the years, it has nice clean lines. as for the angle of how your boat is running, I'm wondering if you've got the engines trimmed too far in and if there is something going on with something on your transom thro...

ktm_2000

Over lunch I started laying out the dash panels and as soon as I could get out of work I finished it off. I screwed chunks of 2x3s to the inside of the console and let the panels rest on the chunks of wood. The waist level rear facing piece needed to have the back glass and core cut out so it would ...

ktm_2000

I got a bunch done today I split my time between the doghouse and the roof which will go over it. I bounced back and forth between the 2 glassing one, letting it set up then shifting to the other sub project. My father in law came by and helped correct my poor carpentry and got the jig to build the ...

ktm_2000

I worked the whole day some stuff went great others not so much. In the morning I cut out the excess glass which drooped into the hatch holes as well as any excess mat which I left long at a transition point. I put the hatches back in so I wouldn't fall in. https://photos.app.goo.gl/sRTUY4p75GEZUUpA...

ktm_2000

I got the 2nd side of the boat deck covered with 1.5oz mat

the pic is horrible so don't expect this link to keep working, I'll take a better one tomorrow
https://photos.app.goo.gl/KUXY78MgP2JmTmwy6

ktm_2000

PMs that do 4hr meetings on Friday afternoons 1-5PM should be taken out and executed (I'm kidding, no really I am kidding) Here's an updated doghouse drawing done in sketchup https://photos.app.goo.gl/oGcgPVXijk4pt5zo8 slightly different from the board I drew out before, still somewhat visually top ...

ktm_2000

in an effort to knock down my project list - I spent my lunch break today glassing the 40 gallon fiberglass livewell tank I purchased into the leaning post that I fabricated. https://photos.app.goo.gl/qMn4CgSa6FDY1bnx5 The enemy of good enough is better ------ I'm thinking of putting a piece of nida...

ktm_2000

Rocky, that is an interesting idea. I have no idea where I could get the auminum stock but a neighbor is a welder and I can ask him tonight

ktm_2000

I had a design session chat with the guy who does the most fishing with me and he had a different perspective on how to go about designing the doghouse. His point was to start from the leaning post and figure out distances from there as I can't move the leaning post/livewell too easily because the u...

ktm_2000

It pouring out, there's no way I'm going under the shrinkwrap in 100% humidity to sand.......... so I decided to play with my doghouse design and started marking out the panel with some chalk lines then covering them with tape. I think the design is top heavy as I have it right now but am struggling...

ktm_2000

Yesterday I sanded the starboard side of the deck in preparation to add the last layer of 1.5oz mat but the heat and humidity got to me and I took too long to get the sanding on that side done and didn't want to get eaten by the mosquitoes glassing after dark. Good thing I waited as the side took a ...

ktm_2000

Carl, Thank you for the image and your advice. I think I am going to go with the more simple thru-bolting method along with the backer plate inside the boat at the cost of some visual blemishes outside the boat. I'm thinking of it as a KISS situation, because far too often I over-complicate things a...

ktm_2000

It isn't too much more work to add a backer plate inside so I used a strip of scrap 3/4" meranti marine plywood. It was already the width that it was, I cut 2 pieces to length and then beveled the edges. The area where the panels will land is a little rough with a couple of high spots, I didn't want...

ktm_2000

Carl, I get the concept but have not seen pics of the setup which you are describing, a google search on "Bertram 31 Stern Cleats" doesn't come up with a lot of great images.... The ones that it does come up with are where the cleats are attached to covering panels and the panels are attached to the...

ktm_2000

Hi All, I'd like to know people's opinion of the strength of the transoms in regards to installing stern cleats and if it requires a backer board. I've been using this person's B31 transom as an inspiration for my project with the storage area in the center to allow hoses,wires, etc to come up from ...

ktm_2000

I came home early today just in time for the sun to go behind the peak of my house putting my boat in the shade at 4:15pm. An hour and a half of sanding seams and a light sand over the rest got me ready to put the 2nd layer of 1708 on the port side. One thing that was curious was the pieces were all...

ktm_2000

No pics today - another rough one.... Last night I got the deck sanded down and cleaned up ready for glass. The sanding took so long that I did't get to cutting the fiberglass needed to glass the deck that night so I got going on it this morning. I got the glass cut out and fitted by 10am and procee...

ktm_2000

When I did my Hiliner I notched the transom. The low motorwell worked fine, I did take waves into the motorwell but never once did I take a wave into the cockpit. I never had an issue with the motorwell but would concede that the boat would have been nicer if I could have left the transom cap in pla...

ktm_2000

I agree - far too often I find myself rounding monomoy point from vineyard sound, water temps go from mid 70s to mid 60s and end up in pea soup thick fog. Nevermind leaving the dock at 3am for fishing for first light or doing the flip side and going out at dusk for a night's fishing. I've also had a...

ktm_2000

Tonight's fun was glassing over the deck filler piece and tying into the bulkheads, then glassing the bulkheads to the sides of the boat. As I did the work I thought about Cam's discussion of angle Iron to connect his console. I purchased some 2" wide angle iron made out of 3/8" fiberglass a while b...

ktm_2000

I'll reiterate what others have said about the time and resources needed to overhaul a boat. I'm renovating a B25, think 1/4 or less of volume of stuff than a B35 and it has taken me quite a long time and I am not done yet. To me the most important item to successfully take on such an undertaking is...

ktm_2000

Cam, Great news on the Survey. From the pics of the quality of your work there was no doubt that you boat would get a good review. As for my doghouse - I am most concerned that the 2 side panels are parallel thus the use of something to hold it all in place while the resin cures. The nida panels are...

ktm_2000

Its going to rain tonight so I am trying to think of what I can get done inside... so I am thinking about the jig that I will use to assemble my center console doghouse. I've fabricated (3)4x8', 3/4"thick nida core panels last year and they have a single layer of 1708 on each side so the panels are ...

ktm_2000

Tonight I worked on fixing a minor mess up... When setting up the front deck panel I didn't pay attention to the starting point where the cabin bulkheads would land and started my first panel too far back. Tonight I made a filler piece and bonded it in. As I had mixed up some filler for putting in t...

ktm_2000

Hi Ray, I owned a Hiliner 222 Gypsy ( a slightly newer designed version of your B20 bahia mar by Ray Hunt) and I had converted it to outboard power with a 175hp yammie 2 stroke. I never tried to get her to top speed as I had a worn out cable steering setup and was somewhat afraid of going too fast b...

ktm_2000

I was trying to think out a strategy to be able to break up the deck glassing into multiple sessions while weaving in the layers so the deck ends up one cohesive unit. I was going to hot glue in some cardboard inside the hatches to act as a dam to not let resin below decks. My goal is to get 2 layer...

ktm_2000

Bertramp, Earlier in the thread I had a similar discussion and Joe recommended smaller scuppers as well. I am still of the opinion that I would like larger ones to get water out faster but I am going to put smaller ones in to begin with and use the boat for a while in that config. If it warrants lar...

ktm_2000

I didn't get started until noon and then I worked on filling the gaps between the deck and put down a couple coats of vinlyester fairing compound and then let it cure for a couple of hours and worked on the part which will be glassed into the transom. Looking at the part - mostly scribed into the tr...

ktm_2000

I was going to come home sunday and glue in my deck on my day off monday but my wife informed me that we had doctors appointments for our kids on monday. She was more than generous to come home saturday night so I could glue in my deck today. I did some final prep then put the deck panels in and I m...

ktm_2000

Cam - the level of work you've put into your boat is amazing. I can't say I am doing the same level....

ktm_2000

A rough day on the project front............... I cut out of work early and got the macerator pump onto a set of studs - this went OK - should be easy to maintain going forward https://photos.app.goo.gl/ywPgpJtXEC7PV6eq9 https://photos.app.goo.gl/Jx7tV13FnWkAirPE8 I couldn't find a set of hangar bol...

ktm_2000

A prize package came in from Defender Marine today and I installed 2 of the battery boxes on the outside battery trays, the inside ones don't fit so I am going to drill holes through the base of the area and use the steel rods and top. I got one in tonight, Vise grips on the steel rod and a wrench u...

ktm_2000

I thought most setups the engine was the same in both sides but the transmission and propeller was setup on the counter rotating motor to spin counter clockwise while going forward.

ktm_2000

Not a lot to show from tonight's work... I drilled and tapped holes to mount my bilge pumps on top of the 2 fiberglass pieces which I glassed into the bilge. https://photos.app.goo.gl/W9DdSnP2cn1okF8ZA Then I took on the task of re-using the original stainless steel fuel tank hold down straps. I see...

ktm_2000

I did some modifications to my deck pieces to allow hoses to come up from underneath the deck Over the fuel tank area will have a livewell so I cut a hole in the deck to allow the fill and drain hoses to come up. I had reinforced this piece with a 1/2 section of PVC pipe and since I needed to cut ne...

ktm_2000

Thanks for sharing the pics!!! I really like the second one, looks like it came from a Bertram brochure in the 70s.

one way you could make an already great photo even better would to do a slight crop on the image so that you could straighten out the horizon line to make it level.

ktm_2000

Today I took the day off and worked on the boat all day. I setup the motor well area with 2 terminal strips and ran wires to the terminal strips. https://photos.app.goo.gl/MRM9ERS4NAiLhKne9 I installed a Y valve for the 1.5" hoses which run up to my fishboxes and ran the main battery cables from the...

ktm_2000

I've been slacking pretty badly on getting my boat done this year. A couple weeks ago I got out fishing with my buddy and we got into some striped bass east of Boston and we didn't catch a bass under 30# with several in the mid 40#s. It was enough of a kick to get my act in gear and get my boat done...

ktm_2000

one last item, if folks were going to do this for themselves, here's some things I could have done better. I didn't reduce the thickness of the panel where the corner fiberglass piece met. When glued together it ended up making the corner fiberglass piece stand proud and I had to grind it down and s...

ktm_2000

I glassed the front side last night and cleaned up the rough edges this morning, I've left myself plenty of excess to scribe it into the boat https://photos.app.goo.gl/qAmrktDDvxePLu6X9 As it sits in the photo the inside face of the panel is 12" off the transom, I'm doing a little second guessing th...

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