bertram31.com

Ironworker

Rick, maybe I am not understanding you.... are you trying to make the cabin roof wider or the flybridge top which sits on top of the cabin roof? https://www.bertram31.com/bailey/buddyboy2.jpg The flybridge top. The cabin roof will remain the same. I'm planning on cutting off the top moving it out 8...

Ironworker

I don't intend on enlarging the cabin. Just removing the top part of the fly bridge and sliding it out on the existing fiberglass. I'll have to fill in the section of the floor that goes with the sides. I may be missing something in the translation though.

Ironworker

I'm getting ready to widen my flybridge by 16 to 17 inches. I've looked at a boat which had done this and I'm extremely impressed with the result . I also see that Tropic Star is doing the same on their 31's . It maintains the B31 look but becomes much more functional, IMO. Because there was some pr...

Ironworker

one more question I don't have an answer for, why does the slope of the line change at a different speed? the new style prop seems to want to plane 1.6kts earlier, I would have thought the hull design would determine when the boat planes? Its being compared to the conventional Yamaha prop in the vi...

Ironworker

We good to go until Russia uses its orbital satellite killers to down the gps system. Compass, a watch and good eyes is all you need. That and some math skills. They teach that anymore? Loran anybody? :-) I have a buddy's boat sitting at my dock. He has roughly $10 million invested in this boat. It...

Ironworker

30% increase in fuel efficiency is huge. At $5 or $6 bucks a gallon for fuel it wouldn't take two long to pay for them.

I hadn't though about the repair issue for the props. Thats certainly a consideration.

I sent them an email regarding props for the 31. I'll post their response.

Ironworker

Impressive performance numbers but they aren't cheap. Anybody running these props?

Here is a boat test. The cat at 13,600# is closest to our boats.

https://www.youtube.com/watch?v=MNnB_50Z20I&t=522s

https://www.sharrowmarine.com/

Ironworker

The water intakes are just inboard of the shaft. There were no on board strainers so I assume they were the exterior strainers.

Ironworker

Rocket,

I'm going to send an email as well. The same friend that gave me my B31 also has given me a B20 which my girlfriend is in love with.

Ironworker

Thanks, I'm going with the 2" as well for the engines.

Ironworker

Tony Meola wrote: ↑Dec 20th, '21, 21:32 Rick

Where did they put the Intakes? Mine are right under that step.

I'm assuming you meant the air intakes. They are the original outboard design although with a few modifications.

Ironworker

Jason,

I"m curious what size of seacocks you used in your boat?

Ironworker

I was offered a 42' Bertram (1979) that needs some work. The engines run (Cummins 903s) but the boat has not be away from the dock for 7 years or so. The berths are in pretty decent shape but the saloon needs a new interior. I was considering taking this on as a project boat especially after seeing ...

Ironworker

I saw an installation a week or so ago in a B31 with the racors and valves under the steps down into the cabin right at the end of the main fuel tank. This particular boat had two aux fuel tanks along with the main fuel tank. The fill port and vents were in the side of the tank maximizing the volume...

Ironworker

I'm removing my side panes in my restoration. I need the room for gaffs and harpoons in my boat and side panels eat up a lot of space. Those panels give some support to the gunnels so I added a couple of layers of glass underneath along with a layer of 1/2 coosa as a backing plate for my rod holders...

Ironworker

But Bob we have… On my Penn Yann I gained almost 13 mph adding rake on a tunnel drive with an OJ Johnson wheel. On my Bertram…I could not get close to spinning my gas prop fast enough to get on plane. Rake eats power… Dad with diesel was able to add rake and his boat picked up speed, about 2mph As ...

Ironworker

My guess based upon my purchase this summer is around 35 to 36K given the recent price increases.

Ironworker

I had my oversized rudders built by John Gieges Jr. along with a new rudder shelf, bearings etc. He did a great job and I recommend him.

Bobby Soles Prop shop is in West Palm Beach, FL. They also do great work.

Ironworker

Jason,

Please keep the photos coming. You are giving me the inspiration to keep plowing ahead.

Ironworker

I'm guessing big hammerhead or Tiger shark. I've seen some 13' Tigers outside that inlet.

Ironworker

I've owned a boat since I was 6 years old. My grandfather gave me a Sears 12' Jon boat with a 3.5 Hp engine. Since then I've hit a lot of rocks, logs, mud banks, and run aground a time or two...

Note to self...reinforce the bow keel.

Ironworker

I'm looking for primarily rod/reel storage. When I say lockable that would be preferred but I mostly just need "out of sight". I'll remove the rods when in S. Florida but in the Bahamas, I generally leave my rods on the boat especially in my home port of Spanish Wells where theft is not an issue. Ho...

Ironworker

If you do away with the hanging locker on the port side and make the bench longer you could definitely put some long rods in here. You could stand some up in the head I built but not to many long ones. I will measure my bench storage area if you would like. My bench can definitely be locked if you ...

Ironworker

I know I'm asking a lot of questions and please know that I appreciate every response. I'm working on refabing my interior and looking at something similar to what Jason and others have done opening up the port side of the V berth. However, I need lockable rod storage. My boat is a flybridge model b...

Ironworker

WILCO. Thanks guys

Ironworker

I am going to bottom paint on top of 3 coats of epoxy primer. I just thought the gelcoat would add a little extra protection.

Ironworker

Thanks. I thought so. I'm using epoxy to repair the hull so now I need to study up on gelcoating over epoxy. From the little investigation that I've done, its can be done with adequate surface prep. Unless someone has a better suggestion. An INET search says that epxoy gelcoat exist. Anybody used th...

Ironworker

My boat has so many coats of bottom paint and other layers of paint its hard to tell if its gelcoat or paint. It looks like gelcoat but I'm not sure. So paint or gelcoat?

Ironworker

Thanks. I'm considering something similar. I want to open up the V Berth area but still have lockable rod storage. I've been considering a combination of the bench similar to yours parallel to a long high grade cooler for ice storage. When the cooler is in it would be a berth and when out would be t...

Ironworker

Tony I got the idea from Jimmy yes the back of the bench is on a big piano hinge and the bottom bunk goes right to the hull side. Still haven’t figured out how it will stay up for now I just prop it up on 2x4’s. I am thinking either fold down legs or a rope/strap to the ceiling When you get a chanc...

Ironworker

https://sirenmarine.com/products/siren-3-pro?utm_medium=email&_hsmi=183542936&_hsenc=p2ANqtz-94rZx3R6JQba3fj_NAzfZg4Y7BaSME-NQP96FnUXE4Ms_I5uKG5_qL0CMorIgewB06kFB-hj7iEvcJY5ZuMBgHrvoymQ&utm_content=183542936&utm_source=hs_email Here is a new system for checking on thing via an app. Check on Battery...

Ironworker

I'm certainly no expert but I'm thinking 29' +/-

Ironworker

Thanks Frank!

Ironworker

I'm planning on using coosa to build my engine beds. I've removed 8' of the outboard stringers and ~5' of the inboard stringers. I will be building them back with layers of laminated 3/4" coosa. The plan is to have 1" thick alum plate under the 4 x6 x1/2" aluminum angle caps where the motor mounts w...

Ironworker

Rick, That is a beast of a transducer...I'm jealous!!! Would it be possible for you to locate the transducer forward of the motor box bilge space so it was directly behind the fresh water tank? Just spit balling this, it would seem if you went to external raw water strainers and intakes in the orig...

Ironworker

Thanks for the photos Bob. My 599LH took some time to install in the pocket and get it flush with the keel. I need to think about the side scan unit. Do you have a top picture?

Ironworker

Thanks John, My 599LH is a huge transducer. I'd post some pics if I ever get the time to figure out how to do so. I need at least 4 group 31 AGM batteries (5 would be better) to carry my power load. We run as much as 3 large electric reels at a time and with the electronic equipment power load is pr...

Ironworker

In between the engines is a good spot but I've located a 3 KW pocket mount transducer in the forward part of the compartment and plan on putting the water intakes at the aft part of the compartment. I guess I could move the water intakes although I'm thinking of adding a side scan transducer in the ...

Ironworker

A little off topic but similar question?

My batteries were located in the bilge just forward of the engine bulkhead. I'm strongly considering locating the batteries outboard of the new cummins. What are the advantages and disadvantages of the two locations?

Ironworker

Jason,

Sorry to hear about the weather. Bring you boat to SC for the winter. While you're working on my boat you can fill in the off days on your boat!!

If its not warm enough in SC we'll load them up and take um to S. Florida.

Ironworker

Thanks Jason,

We built a model and your measurements will help up verify what we are seeing on our end.

Ironworker

Question for you guys repowering with the cummins 5.9.

What is the distance from the inside of the hull to the center line of the Crankshaft? I'm going to have to move my shaft outboard about 3 inches to accommodate the Cummins from the Volvos

Ironworker

Interesting. I asked because I thought you were using something smaller than 1/2", not two layers of 1/2"!

Ironworker

Jason,

What thickness Coosa did you use for the flybridge?

Ironworker

I agree. Its on my list

Ironworker

I'm also going with external strainers but may add a secondary strainer as well.

I got my old engines out and we are cleaning up the rest of the hull before the build back. I should have made this decision 2 years ago.

Ironworker

I believe Rick is talking about keeping the 2 raw water intakes independent of eachother, BUT there will be a "T" somewhere in the systems that will allow them to be opened to eachother ONLY when the valves are turned in the "crash/flush" positions. If the valves are in the "RUN" position there is ...

Ironworker

My first post was not clear. I'm installing two completely separate through hulls, strainers etc. (one for each engine). I was just wondering why they couldn't be tied together with a valve that could be opened if necessary. I suspect it would be a waste of a couple of Tees, some nipples and a valve...

Ironworker

I'm planning on a fresh water flush and a crash valve system for my new QSBs. I'm also relocating my raw water intakes. My question is there any reason why the two intakes cannot be tied in with a valve vs completely independent of each other?

Ironworker

I don't need to guess. I just bought two QSB 5.9s

You're looking at $75K for the engines plus the cost for the transmissions and controls. Throw in some trolling valves and you're at $90K plus.

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