Have been trying to source a 1/4 scale hull for a jet sprint boat but not successful so decided to make my own
Borrowed a small model identical to the one I wanted and set to scaling it up by 2.5 times
I have shown the start of the journey and will continue to post development until it is in action
Have sourced 1/4 scale driver and navigator together with jet unit and electric water cooled motor which will need to produce 3 to 4 hp to drive the jet unit shaft
Hope you all like it because it's been really interesting so far
I should be in a position to pour the mould shortly and then have a fibreglass hull taken off😆

Completed all the clay work. Now set in
casting plaster and waiting to see how it turns out in a few days time
Have used 50 kgs of clay and 50 kgs of casting plaster so far.
Next target is designing the top of the boat and back to clay and plaster again whilst the hull is being gell coated and fibreglassed
Will report on the casting result shortly

Have removed plaster cast from the clay mould and very pleased with the results
Will now have some fibreglass hulls taken off by a specialist (not me ) lol
Now onto the next stage forming the top half so it's back to the clay again so here's hoping it goes as well
Will update progress again shortly

Just laid first fibreglass hull
Pulling it out tomorrow

Removed first hull from mould
Had a few problems with the release but all OK now so onwards and upwards !!
Laid profile for top deck now and starting the clay shaping
Should be a bit easier than the hull and hope to have this ready for moulding shortly
I intend to cover it with silicone first to get a good impression and back it up for strength with fibreglass strengthened casting plaster
I will then lay the fibreglass in the mould and gradually build it up for the finished article
Well that's the theory at this stage lol
Will keep in touch with progress but going well and I am happy with the results so far

Clay mould for deck / top area nearly completed and should be ready for applying silicone rubber shortly

Hull ready for attaching to top deck

So am I Wayne
It's coming together nicely now
Should finish top deck mould in the next week or so
Cheers

Just taken top half out of the mould
So far so good Now to complete sanding and join the hull to the top and then commence painting

Just fibteglassed the top and hull together and tried the rubber bumper strip out for scale
Looks like it will do the trick
Now onto a heap of sanding sanding and more sanding to get it perfect for painting
Still not sure what colour I will use but I guess something that stands out amongst the river rapids