vito85

I would like to know if I can use the electrics of my r/c car on a boat. If I could do so I would be interested in buying a hull and shifting all the electrics onto the boat. The motor is CORALLY, electronic speed controller NOVAK and the radio control and reciever are ACOMS.
Thanks!

toesupwa

The very short answer is "Yes"...

pompebled

A bit longer would be: Yes, but..

As a car motor usually is geared down, it requires a small prop when used in direct drive on a boat, otherwise you'll end up burning the poor thing.

The rest of the electronics is basically the same, so it will work fine in a boat.
Keep the electronics dry by mounting them higher up in the hull, not on the bottom, where every drop can cause disaster....

With the limitations in mind, what kind of hull are you looking for?

Regards, Jan.

vito85

I still don't know what hull to buy. I assume it has to be a mono hull as I will be using just 1 motor. I don't want to buy an expensive hull as its gonna be my first rc boat. Any suggestions?

Dorsal

My Feedback: (17)

Yeah, shy away from reverse until you are SURE it won't swamp your boat! []

mfr02

But remember that reverse is your ONLY brakes! Those concrete pond sides are unforgiving.

Simon.O.

I agree with Jan, the short and medium answer is Yes.
Do you know the specs on your car motor, Turns or rpm??
Can you disable the reverse on your esc.??
I'll take a guess that you have 6-cell packs.

I have 7 fast ( well they are for me ) boats at the moment.
All but one runs a "car motor" between 17 and 23 turn, all are on 6-cells and for esc's I have car , plane and boat ones.
May I suggest for a Car motor of moderate turn 19-23 you will look for a hull that is 18" to 22" long.
You will not get a record setting pond rocket but as it is your first boat then you want something that you can learn to drive and then look for more speed later.
This I KNOW as I have been through it all in the last 18 months.
Move down to the Speed electric section and you will get some more help there.

Cheers.
Simon.

pompebled

Hi Vito,

Assuming you're not all thumbs, making your own hull is also an option, there are a lot of free plans on the net.

What type of hull you need / want, depends on what conditions you'll be running it in; in a freshwater pond, you could go for a monohull, aswell as a cat.
Large bodies of water or sea asks for a monohull with a floodchamber, so it will selfright after a flip.

Keep in mind that car motors are considered medium size powerplants for boats, so don't make the hull too big, or too heavy. (45 cm, 18" and 1kg max! preferably lighter.)

A Crackerbox would work really well, powered by a car motor and free plans are available.

Regards, Jan.

vito85

Thanks for your help! My motor has 21 turns and the ESP has no reverse powered by 6 cells. I will be using the boat in salt water (sea). Can you please give me some links for the free plans of hulls that would be suitable for me. Catamarans are my favourites asthetically but I don't know if it will be good for the conditions I will be using it in.
RE Crackerbox.. What is it exactly? I'm so green in this subject!

pompebled

Hi Vito,

If you google for Crackerbox, or do a search on the forea, you'll be swamped with info on this boat.

Here's a site which has free plans for the Volcano monohull: http://membres.lycos.fr/mikenaval/plan.en.html , go to 'plans' and download it.

This http://www.modelbouw.gompy.net/boott.../monoplans.pdf is a PDF for a monohull Deep Vee, very suitable for rough water, but it need a bit more power due to the hull design, build it light and it might just work on 6 cels and a car motor.

If you plan on running it in the sea, I'd definately add a floodchamber to whatever monohull you choose, having a boat, that turns the right way up after a flip is very handy when running in rough conditions.

Regards, Jan.

pompebled

If you check the http://www.modelbouw.gompy.net/boottekeningen/ page, you'll also find drawings for a lot of other hulls, including cats!

A cat will run best of flat water to medium chop, as the boat will be quite small (see my first reply), I'd only run it on flat to medium rippled water, to avoid multiple rescue attempts when it flips...

Regards, Jan.

HoaRC

you cant use the rc car motor as it spins too fast.

mfr02

Hence the wonders of gearing. Or use a smaller prop.