Thread: Pontoon Dingy build.

Originally Posted by Sideshow

What size I beam are you using there veitnamcam?

It is a channel (75 PFC) not an I beam (UB or UC) so 75 high 40 wide, I went with channel toes out for ease of washdown.

Gunna make your own mudguards VC?

Originally Posted by Mathias

Gunna make your own mudguards VC?

Yep, a mudguard that cannot be stood on is worse than useless so will be grunty enough to hold my 130kilo mate and as low profile as possible as the dingy will have to sit above them,would be way too wide if sat low between them.

man that is a sweet wee boat....... it will fair fly along when you chuck a 15hp on her......

That is one great looking punt. Been watching the build from the beginning but haven't been able to comment til yesterday. I'm sure it'll bring many years of happy boating, fishing and general mucking about. Pat yourself on the back. Would love to have half the skills you've got

Originally Posted by Micky Duck

man that is a sweet wee boat....... it will fair fly along when you chuck a 15hp on her......

Had a test run with a mate and his 15hp yam last weekend. 250kilo payload not counting fuel and motor weight =WOT 38kph, easy cruise at 27-30 kph.

One thing I did not realise when I built this is different manufactures have different leg lenghts in the same leg length eg "Short" yam is 17.1- 17.3 inch.
I built it to have the highest transom that would suit my current 8hp yam at 17.1 inch, it goes well only cavitating at full trim and turning tight, the 15hp is 17.3 but looking over the back the difference the cav plate is under is more like 3/4 inch, no cavitation unless sever turning at full trim.

The fourstroke suzi 20 I was dreaming of is 15 inch so not going to work.
Tohasu 18hp two stroke is 17.1 and a couple hundy cheaper than a 15 yam for 3 more hp so probably where I will end up.

Originally Posted by Manuka

That is one great looking punt. Been watching the build from the beginning but haven't been able to comment til yesterday. I'm sure it'll bring many years of happy boating, fishing and general mucking about. Pat yourself on the back. Would love to have half the skills you've got

Thanks I hope so.

that speed is nothing to sneeze at...more than enough to get you out of (or deeper into) the crap.

Originally Posted by Micky Duck

that speed is nothing to sneeze at...more than enough to get you out of (or deeper into) the crap.

Yep I hear ya. It is only 11 foot long.
By myself in the 10f parker with the 8 I get 32kph which is starting to get a bit dodgey, two up 38kph in the Tinny Punt felt safe as houses.
Im not really after speed just enough grunt to easily plane 2 big lads and gear without going everywhere full throttle.

Bloody hell I have been both busy and slack.

Did a little this morning.

Axle and springs back from being arc sprayed.
Assembled and tacked in position (may move yet position is just a guess) to have something to work around to make some guards/step.
Once I have guards made I will have a hight to work to for the bunks.



Very happy with the long series 450 kilo springs.....they actually have some travel.

You can get galvanized springs but they are very short and very harsh rising rate and I don't like that personally.

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as a truck driver by profession may I give you a hint/tip????
move them wheels waaay back on trailer Mate.
2 reasons
#1 it will keep motor off ground when you go over ruts
#2 most importantly....it will slow the trailers rate of turn and make it shit loads easier to back as it wont veer off to side if you lift arse cheek off seat to fart.


try it and you will see what I mean straight away.

My guess is he may have intentionally positioned them where they are to make it easy to wheel around by hand

wheeling by hand he will faaark his back quick smart with wheels there as the arse will drag if nose is up..... put em towards the back and put a trolley wheel on drawbar.

Originally Posted by Micky Duck

as a truck driver by profession may I give you a hint/tip????
move them wheels waaay back on trailer Mate.
2 reasons
#1 it will keep motor off ground when you go over ruts
#2 most importantly....it will slow the trailers rate of turn and make it shit loads easier to back as it wont veer off to side if you lift arse cheek off seat to fart.


try it and you will see what I mean straight away.

Yea the pick is a bit deceptive as the drawbeam is cut off from pick.....they are pretty far back....its quite heavy on the "ball" like that with no coupling/winch/jocky wheel yet.
Pretty experienced backing both very short and long trailers uphill around tight corners this one will be pretty easy to back compared to my tandem that is both very short and very wide.

I need get to get the guards and bunks made to sit the boat and motor on it to finalize axle position, I want good weight on the ball without being a ring tearer to lift on or off.

The drawbeam is very long at the mo (good for high speed backing ) but length is an issue for my garaging so the whole thing will end up as short as possible/practical.

I would like to leave it a bit longer but with two boats and trailers in the garage and another boat and trailer on the lawn I need to economize on space !

good shit Mate.....wouldv'e been a crime to not say it...... now a cunning bugga COULD make the draw beam extendable/shrinkable then you could have best of both worlds.