50yr old Oday Mariner 2+2 19ft sailboat to mini trawler conversion

[OldDan1943]

Hot daymn, you painted the hull something other than white.
You may start a trend in your boat yard!!!

 

[Durant F]

Dan...
Can you see a theme here??

???

 

[Durant F]

Looking towards the stern is the worst view as the cabin seems too tall for the low freeboard of the old Mariner.
I made a life ring mount up and the ring certainly breaks up that tall wall.
Cockpit ends up around 5ft long which isn’t bad considering what’s in the cabin. Lots packed in to a low, skinny 19ft sailboat hull.
Ordered foam for seat and Vberth cushions...
Feels nice seeing it come together

 

[ben2go]

That's pretty nice for a bare bones cruiser on the cheap. I'd do the great loop in a boat like that.

 

[O C Diver]

I apologize if I missed it, will you be using what I assume was originally a retractable center board for some tracking stability. I imagine quartering to wind with the house windage will make tracking more challenging.

I very much like what you've done in repurposing the boat, and think it's turned out well. I am curious to see with the added pilothouse weight raising the center of gravity and no no longer having the mast and sail to act as stabilizers, how rolly she is. Any thought of adding some keel?

Can't wait for the maiden voyage reports!

Ted

 

[Durant F]

The Center board was removed. The trunk would take up too much room inside. If mounted on the hull, boat would sit too high on trailer. I installed ballast and kept the house as light as possible so hopefully it will be good. This will be a protected water only boat. Will report after first trip next year.

 

[Durant F]

Mounted the anchor roller and did a few touch ups.
Will make cushions and rig the throttle and steering in the spring...
Looking at it outside made me realize how badly the trailer needs paint too.
Didn’t look that bad until the boat was painted ��

 

[OldDan1943]

Mounted the anchor roller and did a few touch ups.
Will make cushions and rig the throttle and steering in the spring...
Looking at it outside made me realize how badly the trailer needs paint too.
Didn’t look that bad until the boat was painted ��

When you finally get it wet and moving, take lots of pictures with comments.

 

[ben2go]

She looks good. You're going to get a lot of questions on the dock.

 

[Jmk2000]

When you finally get it wet and moving, take lots of pictures with comments.

What Old Dan said!

 

[Nomad Willy]

Ted wrote;
“I apologize if I missed it, will you be using what I assume was originally a retractable center board for some tracking stability. I imagine quartering to wind with the house windage will make tracking more challenging.”

Being an OB will help immensely w the probable directional problem. Night and day I’ll bet.

 

[Durant F]

Through hulls installed today for the cockpit drain and sink.
Installed the manual wiper too.
Will keep pecking at the list as time permits...
I really have to acknowledge my brother in law Blake.
While he’s not a boater, he was certainly there to tail a sheet of plywood on the table saw or hold something. A
A great help and I truly appreciate both the hand and the company!

 

[Nomad Willy]

Durant you need more red trim.
Suggest a line at lower window level 2” wide. Will make the cabin look much much lower. Trust me. Reversing the hull/cabin color would make the boat look stable like you just added 1000lbs ballast.

I know your not done.
I’d like to see many more boats like this.
You’ll like the 9.9hp engine as you’ll be able to run a low rpm ... very quiet (relatively). Does the engine have outside adjustable carb jets? You can adjust for smoothest running at 1/3 throttle. Thusly you’ll burn less fuel than a 4s (I think) and no low load cool running problems like with a diesel.

You may be building the future trawler yet to come.
Cheers

 

[Durant F]

I think it might be a hard market ?
Most small boat people want to go fast...
Displacement hulls won’t/can’t plane, but they are super efficient at low speeds with minimal HP needed to attain hull speed.
The Oday Mariner sailboat I used was designed by Phillip Rhodes NA and is a very slippery hull. A 4hp would push it, 6hp would be more than enough, an 8hp 4stroke electric start twin would be perfect. Very quiet and efficient.
I’m using the Johnson 9.9 sailmaster as I own it. They are reliable ole engines and the “sailmaster” model get electric start, 6 amp alternator and extra long shaft. It should be a super low rpm to get hull speed with the 9.9
It’s too bad tooling cost do much. There may well be a market for small, light, trailerable mini trawlers that are super efficient and good for lakes, rivers and canal exploring. As you can see, it’s amazing what you can pack into a small hull. I think the problem would be the small market wouldn’t justify the expense of set up.

 

[ben2go]

I think it might be a hard market ?
Most small boat people want to go fast...
Displacement hulls won’t/can’t plane, but they are super efficient at low speeds with minimal HP needed to attain hull speed.
The Oday Mariner sailboat I used was designed by Phillip Rhodes NA and is a very slippery hull. A 4hp would push it, 6hp would be more than enough, an 8hp 4stroke electric start twin would be perfect. Very quiet and efficient.
I’m using the Johnson 9.9 sailmaster as I own it. They are reliable ole engines and the “sailmaster” model get electric start, 6 amp alternator and extra long shaft. It should be a super low rpm to get hull speed with the 9.9
It’s too bad tooling cost do much. There may well be a market for small, light, trailerable mini trawlers that are super efficient and good for lakes, rivers and canal exploring. As you can see, it’s amazing what you can pack into a small hull. I think the problem would be the small market wouldn’t justify the expense of set up.

There was a guy back in the mid '00s that had a company redoing the Compac 16 and 19 sailboats into mini trawlers. I don't know what ever came of that. They were good little boats and one did some long open water cruises. I think they were using the two stoke E-tech around 9.9 or 15 for the electric start and charging.

 

[Pack Mule]

Wow , This looks great! Pretty dang cool .

 

[Durant F]

Rain day at home so I’m in relaxing and making lists of things to do.
As I think of what’s next on the Mariner, I was chuckling about the dollars spent.
While I didn’t keep a file, this will be close, in Canadian funds:
Sail Boat and trailer. $800
Fiberglass cloth, tape and epoxy resin, about $250
4- 3/8 ply, 2- 1/4 ply, about 100’ of 1x2 pine.. $300
Paint $250
Round ports $100
Lexan windows $200
Bow anchor roller $150
4” foam mattress to use for cushions $150
Material for cushions $100
Porta pottie $100
Thru hulls for sink and cockpit drain $100
Fasteners $50

So...about $2550 to where you see it now, including the trailer.

Still to come:
Engine $$.
Controls and cables $$
Steering system $$
Wooden ships wheel $$

Going with a new 8hp, 4 stroke, electric start and controls would ad about $4000
I’m guessing the steering system and wooden wheel to be in the $600 range.

As I’ll be using my old 9.9 sailmaster, it will be just new, longer cables and the steering system. As such, I’m hopefull that I’ll be launched under $3500

Let’s not talk about hours into the project.....��

 

[Frosty]

Let’s not talk about hours into the project.....��

Never!

 

[Durant F]

Misty rain all day yesterday so started cushions in the shop.
I saw this in a magazine years ago.... like 25+ Yrs ago.
This is my 4th time doing them and it really is tooooooo easy.
No, they are not reversible, but many factory cushions are’nt as well...

I bought a 4inch topper at Walmart for $119 Canadian
It will have enough foam for the V berth, helm and dinette seats as well as the back rests.
Bought 4 meters (about 4.5 yards) of heavy material at “fabricland” for $4/m
PS..Colour chosen because I drink red wine ��

I had old 3/16 plywood kicking around. Taped together if need be


Take your measurements

Cut your foam

Cut your plywood 3/4” LESS all the way around

Lay out your material on the table. Cut so there is plenty to come up and “wrap” the edges to staple to the plywood

Start in the Center of one side pulling up tightly as you staple. Use stainless steel staples

Work out to edges

Now, start at Center of opposite side pulling tightly and staple.

Repeat to remaining side or sides. Wrap corners (trim as needed)

Trim off excess material

Too easy

 

[Jmk2000]

Looks great and the wine colored cushions will look good and match your stripe on the outside!

 

[Durant F]

Thanks for the comments JMK.... they really are easy to do.

 

[Durant F]

Had some extra time today...
Seats...

 

[Durant F]

Made the back rests today
Carpet down
Porta pottie in (private head on 19ft)
That’s it for this year
Off to storage when the rain lets up
Next spring is inside helm: steering and engine controls

 

[OldDan1943]

Looking great. You have and are making LOTS of headway.
What are your plans for the cabinet with the tall door and opening next to it?

I keep forgetting, folks in Canada have to put things away come winter.
Down here, we put on a sweater or a rain coat and complain about both the cold and rain.

 

[Durant F]

The aft opening holds a 9 gallon water jug. There will be a typical hand pump at the sink.
Under the drawer is a cooler I’d added 1-1/2 inches of high density foam around, then covered. I call it a super cooler. If you limit openings and pre cool before leaving, it lasts 6-7 days.

 

[Durant F]

Oops...
Dan, just realized your probably asking about the starboard side.
Tall door aft is enclosed head.
Opening forward will have a rod for a hanging locker
Helm forward of that

 

[OldDan1943]

Oops...
Dan, just realized your probably asking about the starboard side.
Tall door aft is enclosed head.
Opening forward will have a rod for a hanging locker
Helm forward of that

Thanks, that clears up a lot.

 

[Durant F]

Moved the mini to covered storage for winter to free up room in the shop for vehicles. It’s been a fun project. Can’t wait to get the helm rigged next year and launching!

 

[OldDan1943]

How much head room do you have?
Did you leave the center board or do you have a substantial keel?
Ballasted??
I suspect you answered all these questions before but, I hate to go back and sort through all the information.

 

[Durant F]

Built around me...
I’m 5’ 11” and the top of my hair just touch’s the Center section.
No Keel (see previous posts)
Ballast added
Have cruised with the former owner of this boat as a sailboat, no keel (board totally up) motoring around Georgian Bay
All good