bentley marshall

Hey ever one I did a deal with a guy here and part of the deal was this 1/4 scale just sprint boat and 3 stage jet unit
the hull was pritty ruff condition so ive been working on it fulling and sanding to get it mint and adding a few bits here and there so i can take a mould off it

the jet unit is one of 2 units that were made by a guy that worked for hamilton jet here in New Zealand ...
any way heres some pics

bentley marshall

heres some current photos taken today just after ive primed the botom sill need a little spot fuller and it should be ready to take a mould off it then will flip it over and do the top ...

da mad maori

watch ya back bentley.......

im comin back in NZ for a holiday soon




you might wake to find your jet unit "missing"

mmwwwwaaaahhhhhhhahahahahahahaha




hehe
any idea what engine you'll use??

bentley marshall

ha ha you maoris are all ways steeling our stuff you will have to find me first !!!!

yeah going to use a blata clone engine with a bit of porting should be round 10hp should push it along ok i think

martno1fan

Looking good mate,id give the boat a top coat before moulding but it might be ok with primer .Like the jet unit thats pretty cool,will it handle the blata ?.Keep the pics coming mate i like that hull.
Mart

da mad maori

10 horses??
nice that should be heaps choice ow....

bentley marshall

yeah mart i will be puting a few coats of gloss on it then sand that with 1200 grit paper then apply the wax that will give it a nice smooth finish ...

martno1fan

Sounds good to me mate hey guess what the postie brought me this morning ,by the way what paints you using cellulose or that dangerous 2 pk stuff [X(].
Mart

bentley marshall

good looking gear there mart for the plug hull im just using rattle cans for paint

martno1fan

rattle cans are fine ive allways found em good just not as hard wearing but thats not needed on a plug.
Mart

bentley marshall

yeah thats true in using the automotive stuff so should be ok i will prob use this plug hull for the 3 stage unit becouse it allready got all the mounting for the unit etc and make anothere few hull to sell

sheograth

Thats some serious jet drive hardware you acquired

bentley marshall

yep its all untested but looks like it should work the impallers are all mabe of cast brass just like the real ones .. next time i take the unit apart i will take some photos still need a bush in the tail housing

bentley marshall

hey guys got the bottom of the plug finished with a coat of gloss black will sand that with 1200 paper to get it nice and flat then i can make the bottom 1/2 mould .....any way heres some pics

MKMotorsport

I'm drooling over the pump unit! [:-] Why can't someone tool up something like that for mass production and offer it at a semi-reasonable price? [&o]

martno1fan

Looking good mate have you decided how your going to make the moulds yet ,flange or not?,shoe box fit for the top maybe? or seamless?.
Mart

bentley marshall

yes wouldint that be nice the guy made 2 units a 2 stage and this 3 stage he must have been a clever bugger

bentley marshall

hey mart its going to be seamless mate

Dreamin Hemi

Seamless makes for a lot of extra work. After I've built 17 of my Dreamin CS boats, the next model will definatly be a shoebox joint. Check out the Dreamin build thread currently going, perhaps might give you some insight. Nice hull and really nice drive unit. Good luck with your molds!

martno1fan

I have to agree with you about the extra work also means you cant do an all gelcoat finnish.
Mart

bentley marshall

Hi yes it will make more work but i think the look of the boat being seamless is a lot better
i have been reading you ones the mould making and the building of a boat its all good info
ive done a bit of flass work befor on race cars making guards and bonnets etc
the top mould will have to be in 3 bits and bolted together to get it round the rear spoiler

mart i could still do a all jell coat boat but it will need pin stripe on the join but im only going to make white boats so then every one can paint them any colour they want or i can have it painted for them

ive got 3 guys that want one so far and havent advertised them yet

JakeDW

All gel coat and glassed in side does it have a line yes but not too noticeable just like a real boat you would put rub rail over this or it would be capped then gel shot on and feathered in or a paint line added with graphics.[img][/img]

In real boats your sprint jet would be all alum with a 2 or 3 stage Hamliton pump.You seen the vids of them jumping beaver dams?

Can you take the pump apart for us to see the inside stators ect.

Jake

bentley marshall

hi yes if done right the joins are hard to see i dont think my skill is that good at this stage but colour gellcoats cost more at the end of the day so im just going to stock to white

will take some photos of the unit next time i take it apart as it still needs a bush making in the tail housing

martno1fan

Sounds good mate as regards been able to see the join err yes you can see it and yes it will need painting or it wont be seamless .Pinstripe with vinyl also works just depends what they want i guess,as jake says most real boats have a rub rail anyway so a red or black pinstripe would look good.One thing as far as gelcoat goes is it fades (colour) and also you can get hairline cracks apearing over time so most boats end up been painted anyway.White is a good safe colour as they can then as you say add paint or graphics etc themselves.Im looking forward to seeing what you come up with keep the pics coming,any problems you know where i am mate.
Mart

infinityteg

I saw the listing for that on trade me some time ago
looking forward to see how it all goes.
i also had touble finding jet boat hulls when building mine. I am half way through the plug for a 1/4 scale jet sprint with plan to sell them but as some one else is closer there isnt going to be much point to finish it. demand isnt too high to have two manufactures of them.
hers a couple of pics of mine