i need help

[monterey214fs]

i am thinking of building my first boat from the water up. does anyone know of a site that offers plans for a good deep-v hull or steps to building? and why do i not see nitro boats with 3 speed trans.? how do i get 70+ mph cheap?

[roadrunnerdude]

i can tell your a car guy.. three speed trans. 70 mph cheaply.

well with boats. it isnt quite that simple. lets start with what your budget is. and we will go from there.

[CG Bob]

Most RTR nitro boats sell for about $275-$300 and go about 25-33 mph out of the box, and that's typically considered the cheaper end of the spectrum. Figuring $10 per 1 mph, you're looking to spend over $700.

[monterey214fs]

LOL yep im a car/truck guy.... my budget isnt the problem , unless you ask my wife... i want to build my own hull to match my boat but im not to sure how to go about that . should i shape with foam and then fiberglass or balsa and then fiberglass or am i just all screwed up? wouldn't a two or three speed trans. work in a boat and maybe even bring up the top speed? any good sites for plans?

[monterey214fs]

oooh yeah really about the budget since i want to build my hull after that i was thinking about $800 for the motor and the hardware.

[roadrunnerdude]

well..
are you lookin to go nitro or elecric ?

[roadrunnerdude]

i personally find nitro to be a pain in the ass

[monterey214fs]

the boat i am going to build is going to be nitro however i am planning on buying a elec. boat just for the speed hopefully 100+mph

[monterey214fs]

im really not sure i may go gas or nitro for my build

[roadrunnerdude]

well lets put it this way . you crash at 100 or even ninety. your boat is not coming back
boats that go that fast are purpose built. now have you ever driven a boat..

drive one that does 45 or even fifty.. it will keep you on your toes. more so than a car ever will. its quite a rush.

also. nitro its more than big motor.
props.
engine tuning.
pipe lenght.
third channel needles.

gas is fun also. but hey who knows.

as far as nitro goes im preety clueless.
also what type of hull

fastest is rigger. but its not scale.

second is hydro.

then catamaran

then vees.

i dont think ive ever seen a deep vee go over eighty.

theres a couple of people on here that are very knowldgeble. about nitro.
one is ron olson.
second is doubledog.
and a couple others.

guys you think you can help him out ?

[Doubledog]

I'm currious to know the status of his endeavor. So whats going on Monterey? Have you done anything or settled on some plans? Unload the info man. :)

[monterey214fs]

i have . i am going down to the store today and i am going to buy crap loads of foam blocks and resin and start playing around with my hull design . i am going to have two boats one electric with a 10T and one nitro with two nitro motors or a 35cc.
i have a question DO ANY OF YOU KNOW OF A WEBSITE THAT WILL SHOW PLANS FOR BUILDING A HULL I AM MOSTLY WORRIED ABOUT THE INSIDE OF THE BOAT SUCH AS HOTOR PLACMENT ANS SERVO PLACEMENT GAS /BATTERIES...ETC.......

[roadrunnerdude]

boats usually dont like car motors unless they are higher turns 19 turn 27 turn or 13 turn. i found 10 turns to be uselesss and slower. just a waste of power.

you might however wanna try 12 cells and a 700 or 550 type motor..

[BoatDoc]

if you want to use a car motor in an FE boat, you'll want to build it around 22" in length. i'd also suggest using a 19t or 27t motor, so that it's raceable (if you decide to do so). the 27t motors are used for N-1 mono in NAMBA, but some clubs run 19t motors instead. the speed you get from a 19/27 boat will be in the mid to high 20's at best. if you want more speed than that, you'll want to look into 6 or 12 cell brushless. about 25" for 6 cells, and 30" for 12 cells. both of those are larger than "traditional", but i know for a fact that a 22" boat won't cut it anymore. i'll see if i have some mono set up pic's that i can share with ya.

[Rex R]

here is a pic of the 'guts' of one of my boats, battery pack(not shown)is a 6 cell pack(3 cells on either side of the motor). yes it is kinda tight :) hth
rex

[monterey214fs]

thank you all for your help. i started yesterday on the first of three boats i am going to build it is 48" x 15" it is going to be gas. do any of you have a simular size boat? maybe some pictures of its inerds? or a site with plans? i am still just making the mold so i have some time to change a bit. ok so back to the garage......what do you guys think the depth from top to bottom should be in inches?

[w3bby]

Here's a build of a woody in that size, the pics may help you out. If you want these plans send me your e-mail via PM and I will get them out to you.
Woody build (http://www.putfile.com/w3bby/images/22401)

[Fluid]

the boat i am going to build is going to be nitro however i am planning on buying a elec. boat just for the speed hopefully 100+mphI don't want to throw cold water on your plans, but if you know noting about boats - and that is clearly the case - then I strongly recommend that you not waste your time trying to re-invent the wheel by designing and building your own boat. You will never meet your speed goals this way, as it is clear that you have no conception of what it takes to go 100 mph, or even 40 mph.

What you need to do is to find some experienced R/C boaters to help guide you on your quest hands on. Depending on where you live there should be a club within reasonable distance - contact them and visit one of their races. Talk to them, ask a lot of questions, and learn. You will find that your best course at first is to buy existing hulls and build up the boats from them. Learn to set up and drive a few boats, then design and build your own. Otherwise you will become discouraged after spending a lot of time on a futile effort.

Again, this is meant as a wake-up call to help you avoid a loss of productive time. I have seen many others try the same things as you, and all have met the same fate. They either gave up boating altogether, or they started over with commercial hulls. It is your choice, good luck either way. :cool:


.

[SouthJersey-FE]

Words to live by Fluid. I was going to attempt the same thing. I have since stepped back and reanalyzed my limitations. In your case Monte with the budget you have I would suggest hitting ebay for a nice pro built nitro boat. As for electric get your feet wet with a SuperVee 27. Both are with in your price range. Support equipment not included in the 800 price range though. Once you run them for a couple seasons then break out the tools and go to work.

[Chris LaPanse]

thank you all for your help. i started yesterday on the first of three boats i am going to build it is 48" x 15" it is going to be gas. do any of you have a simular size boat? maybe some pictures of its inerds? or a site with plans? i am still just making the mold so i have some time to change a bit. ok so back to the garage......what do you guys think the depth from top to bottom should be in inches?


I will say this: With a mono of that size, you will NEVER reach 70+mph, at least not with any hint of stability.

You could probably hit 40 fairly easily assuming a decent hill design, and 50-60 would be doable, though the hull would probably run pretty loose at that kind of speed.

On the other hand, doing 50 in a boat, especially a mono, is about as easy as doing 80-90 in a car, so it would not be slow (or easy). Note that all of this is assuming a good hull design, and with a bad design you'd be lucky to hit 30.

The reason there are no 3 speed (or 2 speed) transmissions in boats is simple: you would lose a lot more than you would gain. Almost all boats run a direct drive, with the motor shaft being connected straight to the prop. This setup has almost zero loss to friction, and has next to no rotating mass. The result? A fast and responsive boat.

Add in a transmission, and you have vastly increased the friction, rotating mass, and complexity.