Hello from WI

I picked up an old Mirrocraft and will be browsing site for knowledge to get it on the water cruising.

Welcome to TinBoats. That is a classic.

You have not asked and I could be misreading the picture. It looks like the transom is not supported by the trailer bunks. If it isn't, you might want to remedy that. Sorry for the unsolicited advice.

No worries, there is information in all forms, including advice. Good advice, like yours, shows concern, which I appreciate!

I will look at it when I get home but there are brackets at the end of the trailer 'legs' that seem to be a u-joint with a pad at the top that is holding the boat in that area. You can see the 'tie down' chains (with a spring) that go from the transom to the bottom of the brackets in the picture.

So a funny story about transoms and trailering, the first boat I bought was a 18' Larson with a 190hp V6 IO and I trailered it to a friends after purchase 30 some miles on the interstate; missing the transom tie downs. I had no clue, and was green on boating at the time.

(Are those chains going to be another story? Looks like a old time swing-set, lol.)

I confirmed via hull id that it is a 1963. I need to clean off the engine serial number and look that up when I get a chance. I am pretty sure I found it on the bow side of the engine mount.

Welcome @bearskinlake . Nice project boat. Please share your work on tinboats.

A roller on each side.

Motor sn (this is as best as I can tell at the moment)
25526-01005
I would love to know the year. There is a control box outside of the engine.

Looks like a 1956 30hp
https://www.marineengine.com/parts/model_guide_pre80.html

bearskinlake said:

A roller on each side.

View attachment 121839

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Roller is denying the hull, need more rollers are bigger ones to support more surface area. In your case, replacing those with bunks might be more effective !

If that boat has been on that trailer since 1956, that shows how much better-built the riveted boats were back in the 1950's.

I've heard that the quality is because of all the aluminum aviation worker who were building airplanes during WWII. Some moved to the boat building industry and they were good at their jobs. Every 50's boat I've seen has been excellent even 70 years later. That's why they could put large, heavy motors on pretty small boats back then. I had a small, narrow 14' Crestliner that originally came with a 40 HP motor and they were great back then.

A modern Tracker hull would have bowed, warped, cracked in two and sunk one day after the warranty died, ha-ha. (Just joking, Tracker owners... err... sort of)

Congrats on a great boat!

My main concern at this point is doing the math on the feasibility of adding level flotation when refiting the interior.

PDF: COMDTPUB P16761.3B

I will likely post in the boathouse once I have the measurements.

The ribs are glued and riveted to the floor with no way for water to go but over.

Here are some interior shots

I'd be looking at replacing the trailer.

lckstckn2smknbrls said:

I'd be looking at replacing the trailer.

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After a bunch of reading I will probably not be using it as is medium or long term, I think. Not sure I can set this one up as a bunk trailer. I do plan on using this on local lakes and not have it dedicated to the cabin.