48in mono hull scratch build (Full Version)

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maxxnitro88 -> 48in mono hull scratch build (11/9/2012 6:30 PM)

 this is my first boat that i have built, found some plans online and had a homelite 25cc engine laying around.  this is what i came up with.  i had a lot of help fromthis forum building my boat so i figured i would post up these pics so new guys/girls can get  agood idea of what all is involved!

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maxxnitro88 -> RE: 48in mono hull scratch build (11/9/2012 6:39 PM)

here is a link to the first run of the boat, the engine was still not quite tuned right!



cconeill -> RE: 48in mono hull scratch build (11/9/2012 8:06 PM)

You have to luv a woodie!! very nice job.



The Ghost -> RE: 48in mono hull scratch build (11/9/2012 10:31 PM)

Very nice boat, very clean lines, good luck with it, congrats

cheers



dwr9 -> RE: 48in mono hull scratch build (11/10/2012 4:23 AM)

Looks real nice. Doug



expresscraft -> RE: 48in mono hull scratch build (11/10/2012 7:00 PM)

very nice job,you will have a lot of fun with that boat.



maxxnitro88 -> RE: 48in mono hull scratch build (11/12/2012 4:51 PM)

thanks, its a pretty fun cruiser.  im hoping a 3 blade prop will give it some more pep this spring, but i haven't done any research so any input on a  potentially better prop would be helpful!



martno1fan -> RE: 48in mono hull scratch build (11/12/2012 6:37 PM)

Making it a surface drive will improve performance quite a bit,exit the transon 1/8 -1/4 " to right of keel and 1/2" up from the keel to centre of driveline and im sure you will see more performance.
Mart



MrMikeG -> RE: 48in mono hull scratch build (11/13/2012 2:04 AM)

Try a X470/3, or Prather 275 or 280.
You might need another shroud, you cut that one a bit low. Once you start working the engine harder you need the cooling coming off the fan going across the head, forward motion is no where near enough air flow.



dwr9 -> RE: 48in mono hull scratch build (11/13/2012 3:35 AM)

The props Mike mentioned should work on a surface drive. You could also try an X482. The X470/3 would be my first choice of the props mentioned. however they are all too large for you current subsurface drive. The boat was meant to use a surface drive. Doug



MrMikeG -> RE: 48in mono hull scratch build (11/13/2012 4:21 AM)

I ran a drive like that for a while, most of the top blade will still be out of the water.
Trying to find 12 year old pics on hard drives is the problem now. [8D]



maxxnitro88 -> RE: 48in mono hull scratch build (11/19/2012 2:04 PM)

just out of curiosity how does the octoura x470/3 compare to the prop shop B6717/3?

i see that the B6717/3 has a steeper pitch (4.48) but with a smaller diameter (67mm), but not really sure how the specs stack up with the octura's specs.



martno1fan -> RE: 48in mono hull scratch build (11/19/2012 2:22 PM)

Personally i think youd be best with a bigger prop,a good prop for a lower reving motor is the prather 280.



chipbreakr -> RE: 48in mono hull scratch build (11/22/2012 3:42 PM)

            Great job,  If you would like to build a tuned pipe for it and have plans that I can email
Jim



maxxnitro88 -> RE: 48in mono hull scratch build (11/22/2012 5:34 PM)


quote:

ORIGINAL: chipbreakr

            Great job,  If you would like to build a tuned pipe for it and have plans that I can email
Jim


yea sure that would be great, my email is mann.232@osu.edu  

it's been hard to find one that will fit with the way I have the exhaust routed...



chipbreakr -> RE: 48in mono hull scratch build (11/23/2012 2:43 PM)

I'm out of town , I'll be home tonight and will send you the pipe plans.
Jim



chipbreakr -> RE: 48in mono hull scratch build (11/29/2012 3:01 AM)

I just sent you the pipe plans , I apologize for taking so long , I forgot about sending them .
Jim



maxxnitro88 -> RE: 48in mono hull scratch build (11/30/2012 1:40 PM)

got them thanks!



wan6176 -> RE: 48in mono hull scratch build (12/14/2012 9:45 PM)

was it 48" or 54" which one is it your length.here stated 48" ur youtube stated 54". which is which? what ur width?



maxxnitro88 -> RE: 48in mono hull scratch build (1/9/2013 4:24 PM)

48 without the running gear and 54 with it.



michaelgrout146 -> RE: 48in mono hull scratch build (3/22/2013 9:27 AM)

I'd like to build one of these too! Where did you find the plans?



dwr9 -> RE: 48in mono hull scratch build (3/23/2013 2:34 AM)

michaelgrout146, I can email them to you if you let me have your email address or you can download them at: http://www.modelgasboats.com/
Doug



maxxnitro88 -> RE: 48in mono hull scratch build (5/23/2013 5:25 PM)

found a great deal on a macs tuned pipe, pics posted soon...



scales10 -> RE: 48in mono hull scratch build (5/23/2013 8:21 PM)

looks great, im doing my lower hull like yours basically just my sides are gonna come up higher to look like a fishing boat



scales10 -> RE: 48in mono hull scratch build (5/24/2013 12:17 AM)

do you remember how far apart your braces are on the inside? and those stringers down the middle are apart? thanks



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