Thread: Home build 3.4m Alloy Jetboat (photo heavy)

I know of a fair few female engineers Dougie....even back when I was doing my trade 25y ago they were far from uncommon tho mostly they seem attracted to machining and cnc type work away from the burns and heavy lifting.

Originally Posted by mikee

Theres been a lot in the waimea river lately all crew in earmuffs and you can hear the things miles away. I'm all for jet boats and boats in general but these things are.......

Yes I know what you mean.....pretty sure the only river locally they are allowed on( any power boat) is the Mot and only for part of the year.

Originally Posted by mikee

While I really like jet boats (even though I am the "black sheep" in the family being the only one to own a fizz boat currently)

I loathe jet dinghies powered by shitty noisy little jet-ski engines/unit.


Please, please please if you are going to build one please put a proper motor in it!!
You should not ever have to wear earmuffs in a boat unless you are actually in an engine room or generator room. If you must be a little noisy then a 5 to 6ltr V8 engine will supply the best result

Dougie your boat looks like bloody good fun by the way

You mean something quiet like a 300hp honda vtec in a 3.8m hull.!!!!

Is there any rotary engine powered jet boat?

Originally Posted by Friwi

Is there any rotary engine powered jet boat?

yes,But not that common as you are after torque for a jet boat.

Originally Posted by Friwi

Is there any rotary engine powered jet boat?

https://www.youtube.com/watch?v=WSCX9IBtCDI

If you'd like to top up my bank account for a four stroke jet ski motor then fill your boots!

Previous boat had a Rover V8 in it that was a heap.. swapped it out for a holden V6 and I swear it was louder than the two stroke in this boat!

Ear muffs do not bother me in the slightest. I wear them a lot at work...might as well be wearing them and doing something fun.

It's the vibration that is the not so good thing about the two stroke. I bought (trade) these epic washers for the engine mounts at $12 each!!!!!! They do no undo though. Unlike every other bolt I am now finding out


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Originally Posted by Dougie

Crank up the sensitivity or just bite the bullet and buy a better one... I have one for galv and another for tig because the mig one is shit and flashes me occasionally, it's about $99 I think. I don't want to ruin the good one by using it on spitty steel

Kotuku im writing for thebloke.co.nz

I stopped with NZO after they published photos without my permission, edited my articles and reviews without sending me a draft before publishing, then they fired the Editor who was sticking up for me.

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What about the Hunters Element gig? You still involved with them??

Originally Posted by Kudu

What about the Hunters Element gig? You still involved with them??

No.


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any video on the list , keen to see it up n running sound included cheers, hope i havnt missed any other posts asking same cheers

P.S.is yours similar to Smiddys and Kiwi Bushmans liked theres ,just on a wishlist but running out of years

Maybe your impeller needs balancing?

Originally Posted by Mauser308

That's interesting about the vibration, the little 2thumper motor's should be fairly free from vibration cause if they aren't they can do all sorts of nasties like peening roller bearings and wiping cylinder walls... Also it's not to flash on the jet units they should be free from vibration as well.

I mean the fact that the boat is essentially a large drum that vibrates and amplifies the high frequency sound of the two stroke


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I was looking at a similar length boat to your today, it had a wee KodiaK V8 shoe horned into it. It was very well done but not a home build.

I always wanted a jet boat but not much use in the sea unfortunately have to make do with taking dads for a spin occasionally when I visit

Originally Posted by Dougie

Yeah I absolutely loved the bit on Farah last night! What a great role model.

I think it's a lot of nurture, not nature.

I have grown up not being encouraged much with honestly quite an absent family, but with extensive pig headedness and drive for excellece. (Read: stubborn.) however, I think if our little girls were always told that they could do anything (and similarly to boys... they can do anything, including hair dressing, nursing, ballet dancing, crying when they are hurt physically or emotionally.......) then we would live in a much more diverse and fair world.




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I think you are right. Back in the 40's women were doing everything. My mother was a strong swimmer and took on the men's open events and won those because there was not enough competition in the women's events. Her father died when she was about 10 leaving her mother to bring up the three kids on her own with little welfare. There was my mothers role model.

Impressed with the build.