15ft pride ski boat :)

[eaglejim]

Re: 15ft pride ski boat

Just have you next of kin forward the youtube video so we can all say "we knew that guy"

 

[Bottom]

Re: 15ft pride ski boat

Looking at the boat builders guide provided by the coast guard here are the number for your boat....


15' long

5' beam (assumed)

Hard Chine bottom...

15 x 5 = 75

Chine factor is .8

75 x .8 = 60

subtract 25 from that number

60 - 25 = 35

From those calculations that boat is only rated for a 35 hp.

If it had a softer chine it could rate as high as a 60hp.

I'm sorry if this is very simple but it amazed and lost me at the same time....LOL

Please explain, I would love to do this for my boat.

My boat is a 1985 Glasstream. 15 '

 

[BobsGlasstream]

Re: 15ft pride ski boat

Well,
If you like to have crazy things, I think this would qualify.

I hope that by crazy, "I hope you don't mean careless".
Good luck with this one.
Or should I say, I hope that you reconsider this one.
Bob

 

[anthony115merc]

Re: 15ft pride ski boat

the boat does have vertical stringers and if i do do this i will do it properly im not a careless person i would build the boat up to the job. my ideas were welding up a frame to support the motor and the frame would go up near the front seats aswell to support it and tie it into the stringers by means of putting flat bar each side of stringers and bolting it through then welding to that the motor is very light for its power and considering the age its prob lost a few hp. another thing is u look at the size of a jet ski it has 260hp goes 110km/h yes they are built to handle it so y cant a boat be built in a way to handle more hp. my thinking on it is if u make good stuff to attach to and spread all the load/weight out its not gonna over stress it anyway im gona see if the engine will even run if it doesnt it wont be going on anyway

 

[anthony115merc]

Re: 15ft pride ski boat

1 vid
http://www.youtube.com/watch?v=eqJvzJEZmko&feature=related

2 vid
http://www.youtube.com/watch?v=IXpDDSNuUXE

just a few things these boats dont look too bad

 

[Azonic]

Re: 15ft pride ski boat

Your boat has "ONE" vertical stringer taller than 2" in the middle.

Not the # of stringers you show in your drawing...

As far as the calculation goes...

The instructions are in a manual and cover about 5-8 pages...

The gist is this...

Length in feet X Beam in feet = Boat Factor

then there are about 5 different calculations based on

Bottom of boat design, transom height, and steering type...

Each reduces or increase HP rating.....

 

[anthony115merc]

Re: 15ft pride ski boat

i understand what ur saying but in life everything doesnt have to be by the rules i see what ur saying and yes it would apply to a standard boat.but what ur saying doesnt take into account what if the boat isnt made outta just ply wood it doesnt include if the boat is going to have all welded up frames that the motor bolts too. they are just guidlines and once in a while u see people step outside them and they do make good things happen ive seen a 13ft boat with a 300hp merc hanging off it he woulda built it up.if im putting 200hp on it i will be ripping up all the floor and redoing everything and just keeping the hull skin. i will do it safe and proper the motor only weighs 179kg which is very light. im not here to try and **** people off. if people have ideas i would like to hear them.

 

[Azonic]

Re: 15ft pride ski boat

Here is the bigger point...

those are the guide lines..
they translate to rules...
to which the coast guard and our local water patrol will ticket a person for violating...

I agree with you on one point...
You can go past the guidelines, however should you and can you?

If you were a mechanical engineer with a specialty in marine hull designs I would say you could have a shot at it. You might even have your PE license which would allow you to sign off on the design...

The nice thing about that is this...
Once you have a PE license, and can sign off on things..
You can then also be summoned to court to be held accountable for anything that you signed off on that was wrong.. including your own design work...

So lets assume this...
You do what you want to do, and only you ever get in the boat, and you never use it around a populated area, then we assume you are taking all the risk...
How often is that going to happen?
Since the answer is rarely...
Then you should and if I got to decide, would be held accountable for any mishaps that occur.

And I would like to make this point agian.

The rear picture you took of your boat with the entire transom removed shows one (1) stringer. Your "design" as we will call it, has 3 or 4 stringers in it...
Your reality is not matching your design or desire.
Second, if you started this project by cutting the cap and transom completely off the boat, you prove you do not have the design understanding of a boat at close grasp, as you have approached a significant portion of any rebuild project in a complete obscure if not inccorect manner...

And I quote "Fiberglass is not my thing" If you go down to the hull, removing the stringers, and build back some... you better make fiberglass "THE" thing you are best at... or this design will die... The strength you are hoping for is going to come from the fiberglass that ties the stringers to the hull... the metal will do nothing to make that stronger!!

 

[ezmobee]

Re: 15ft pride ski boat

im not here to try and **** people off. if people have ideas i would like to hear them.

Anthony, no one here is going to give you ideas on how to severely overpower your boat.

 

[sourbsted]

Re: 15ft pride ski boat

Hey anthony long time no hear. Done some research on your boat well at least I tryed. Its not in any of my aussie built boat books. It may be similar to the caribbean comaro/Pride premier 15ft it takes a max 115hp or best power 75hp..

I was told by some poeple my 16ft savage runabout wont handle a 150hp but the boat manufacter says i can. I have had no drama's. I think a merc inline would be a good choice for you..