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Airboay hull idea

Old 06-23-2015, 06:11 PM
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jwright36
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Default Airboay hull idea

This is what id like to use as a hull. Has good weight to it just have to cut the tip at an angle to create a rake, think that is what its called, angle the sides at 45 degree angles and also do i need to cut lines in the bottom to prevent spinning out because it is smooth? All help appreciated guys



Old 06-23-2015, 07:31 PM
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crispyspa
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The orange side is the bottom, right? I wouldn't change a thing. Make a "power pod" as it were, glue it on and go.
Old 06-23-2015, 09:08 PM
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Good point. Lol actually im pretty sure the bright orange is the top it has a thin layer of laminate type material and the yellow side is the foam and the bottom . . I think
Old 06-24-2015, 03:06 AM
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1QwkSport2.5r
 
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Nah, Orange is the bottom. Notice the slight rake in the front? It's a boogie board - the top is soft since you'd be kneeling on it.

I'm with Crispy - glue and engine pod on and go play. Several guys have built boogie board airboats in recent years. You can do a quick search on this forum to find a few. Altered1 built one and used an Enya .60 engine on his.
Old 06-24-2015, 08:55 AM
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jwright36
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Ahh i see that now thanks guys!
Old 06-24-2015, 11:24 AM
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jwright36
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How do you figure how long your rudders need to be? I figured however high your engine is mounted say you have a 14" prop the your rudder.needs to be atleast 14" long to catch all the prop wash correct? Also mounting the motor ive read to mount it at about 1/3 the length of the hull.
Old 06-24-2015, 11:38 AM
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I don't make my air rudders any taller than needed - usually as high as the engine mount usually. You can make your rudders big, but there's a limit to where the size is really effective. It would be a bit of an experiment to make a few different size rudders and see what works best. A 14" prop is a big prop - suited for a .90-1.20 2-stroke. Most boogie boards are better suited for a .46-.61 size engine using 10x5-10x6 and 11x6-11x7 props respectively. Too much power on too light a boat and you'll have problems keeping it from flipping.
Old 06-24-2015, 02:02 PM
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I see thank you sir. Can you clarify on what the .90 1.20 .46 etc mean? What is a 33cc poulan?
Old 06-24-2015, 05:53 PM
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The displacement sizes I gave are in cubic inches. A .46 is 7.5cc, a .61 is 10cc, a .91 is about 14.7cc, a 1.0 is 16cc, and a 1.20 is 20cc. Your 33cc is about 2.0 cubic inches and I'm gonna guess is a bit too big for a boogie board and would need a bigger prop than 14". Probably closer to 18" diameter.
Old 06-24-2015, 06:35 PM
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Ahhhh i see. Nice learning something! Thank ya sir

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