Hello everyone,
This is a quick video showing you how I've started to create the formwork for my hull extension to convert my boat from a sterndrive to twin outboards.
I'm using 17mm Form ply to create the shape and to ensure I follow the original lines of the hull including the chines. I also need to ensure the materials I use are solid, won't flex or move and are suitable for external use.
once the basic form is created I've created the radius's using simply children's plasticine, i did use moulding clay but due to extreme heat 35 of degrees C the clay cracked badly and needed to be replaced. the plasticine went soft as well but it was workable.
I made sure the transom angle was right by copying the original angle by using a simple template.
The longitudinal and lateral bulkheads are full height and will end up being fixed to the floor which is then fixed to the side of the boat by laminating or tabbing it into position. This will then essentially make the whole structure on piece - one very strong piece - one structure. The stringers, bulkheads and the floor all lock in together.
I'm using Thermolite, biaxial cloth, multi bias, quadaxial and CSM chopped strand mat. Which are all laminated together in a specific way to ensure the strength is ensured.
The hull will be widened by adding a sponsons to the sides and all the fibreglass work will be added to provide additional structural strength and structural integrity. With this we will be adding a higher chine which will be just below the new water line of the boat. The main reason to keep the new chine below the water line is to prevent chine slap which is an annoying problem that occurs when chines are slightly above the ware line and waves come up and slap against it creating an annoying sound, especially if you're trying to get some shut eye.
In addition to this we're using all composite materials throughout These products are designed and manufactured to ensure they don't absorb water. These products will include Thermolite and FF360 - but more on that later.
I hope you enjoy the video and please remember to subscribe and hit the notification button for future content.
Cheers
Rob
fibreglass
fibreglass cloth
fibreglass repair
boat hull extension
boat repower
boat modifications
fibreglass form work
tools
Makita
outboards
sterndrive
adventure
fibreglass resin
vinyl ester resin
powder bound CSM
types of fibreglass
chopped strand mat
emulsion bound chopped strand mat
thermolite stringers thermolite bulkhead thermolite transom
boat structure boat structure design
#thermolite #thermolitestringers #thermolitebulkheads #boatstructure #boatstructuredesign #boatdesign #boatrepower
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Негізгі бет Starting to create the formwork for my hull extension to repower form a sterndrive to outboards
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