Craft4u

Is it possible to run a small to medium nitro setup with an almosttotally sealed hatch, can the cooling system handle the load??
Will it get enough air to breath??
The reason I ask is I would love to setup a nitro rapids boat, if it can be done
Has anyone evr tried to setup a rapid boat??
crazy I know but I got jet boat fever!
Tanks... of gas

Hydro Junkie

Cooling won't be the problem, that is as long as you have good water flow through the head. The problem will be starving the engine. You need to make some vents in the boat to allow air in or stay with an electric boat that doesn't need air to run. There is a company that makes a jet drive unit or two, but they're not cheap.

f16man

And you will be dissapointed with the performance.......

Craft4u

IN-OTHER-WORDS

just add wata

cause were goin' JET BOATIN'
YEEHAW!

Tanks of gas guys! 

jet boat boy!

Hydro Junkie

If you want a slow boat, yeah, just add a water jet and lots of cash out of your pocket

R.J. West

Are we still talking about that $80 40 inch koyosho C-1 cat or Admiral. Are we seriously considering running a nitro powered boat in that small stream that in that video you showed us on the other thread you made?

Dan S

I believe so.

craft4u,
a nitro engine will not run under a fully sealed hull, it needs air.

maybe you should fit a snorkel on top of the hatch.

Dan.

Craft4u

Naw, I'll run the nitro conversion in the Potomac. Heavy Seas and miles of open water
I do think a small engine nitro would make a great rapid boat though electric is obviously better suited to the conditions.
If I had the extra cash, I might consider dropping in a couple o'jet drives. The propellers work fine and are cheap if I brush a rock, it's the shipping they ripped me off for ,) (I hope they are listening too,)
My rapids boat does not need to be the fastest boat in the world, shucks just add lots o'wata and even the Admiral is fun

Hydro Junkie

You hit a prop on a rock and you'll be replacing more than just a prop. Plan on struts, flex shafts, hulls, radio gear, props and rudders.
Let me make some things very clear, YOU'RE DEALING WITH A BOAT THAT HAS THE POTENTIAL TO HURT SOMEONE. THEY NEED ROOM AND THEY NEED SOMEONE WITH EXPERIENCE DRIVING IN ROUGH CONDITIONS. FORGET THE RIVER BOAT AND BUY YOURESELF AN RTR AND START LEARNING WHAT'S ACTUALLY GOING ON BEFORE YOU START TRYING TO REINVENT THE WHEEL. I've said it to you three times now. Start listening or nobody is going to want to help you

Craft4u

Okay
I'll take a 49" Thunder Cat
with a stock Zenoah G260
And... I'll paint it myself so don't worry about that
Oh and, how soon can you get that to me ,)

Seriously though, I hear ya
but, I still think the boat has alot o'potential to go really, really fast

I'll keep you posted on the progress
and lest you know when it's ready to race!  [sic]

Now, you might very well be right. A sic twin nitro setup might be too much for it
but the money won't be wasted. At that point, I can glass the hull, and then smoke your Hydro

Hydro Junkie

You just don't get it do you? I've got almost 30 years of boat building and running experience. RJ has over 20 and we're both telling you the same thing. We're both telling you to forget the plastic hull and take the time to learn how things work and why with a RTR. A boat with a hull that's failed can be deadly. A fast boat with a dead radio can be deadly. A fast boat with an inexperienced driver can be deadly. In short, if a boat you own hits someone or something, YOU ARE LIABLE FOR THE REPAIR OR MEDICAL BILLS. There is a thread in this forum about R/C BOATING RELATED DEATHS, YOU NEED TO READ IT!!!!!!!!!!!!!!!!!!

Hydro Junkie

I'LL EVEN SUPPLY THE LINK: http://www.rcuniverse.com/forum/m_9569185/tm.htm

Craft4u

HJ
Point taken, I'll glass the hull super light and then proceed with the build ,)
I have some ideas how to cut down on weight in the fiberglassed hull fabrication process

fastpepper

personally. i would use carbon fiber with different mixtures of resign in different spots... i use carbon fiber for my boat repairs on my sailing skiff i use for the nationals...
you can really change the charicteristics of the carbon if you use the different types of resin...
its more $$ tho... but ALOT lighter and WAY stronger.

Craft4u

Another something to think about ,)
I like that
I'll check it out, I have seen carbon fiber sheets at what looked to be reasonable prices just need to add it all up. You know, factor in all the data to the equation(s) to imagine what's best, then try it 
Likely to be, a little this, a little that and a little the other!
Thanks for the tip.

fastpepper

just lay 1 or 2 layers of medium weave all in the bottom of your boat... it should be bulletproof.... just make sure when you drill into it BE VERY VERY VERY carefull, as it doesn't have a great response to drilling.... just go very slow and be gentle, once its drilled, try and put a metal O into the drill hole, as like a brace. epoxy that in with the carbon. that will be best result.

f16man

I can't wait to see this abortion......

Hydro Junkie

You and me both

fastpepper

can i agree too? lol....

Hydro Junkie

If you wish, considering this is an open forum

R.J. West

I dont know, I think hes just foolin around now.....trying to get a rise out of us...

Hydro Junkie

I like it, JAW shut down his other thread. Now maybe he'll get the point

Justaddwata

My Feedback: (3)

He is on my radar now - He will

fastpepper

i sure would... xD

R.J. West

COOL!