It's brushless & it's a boat!
 

No kidding, I can hear you say, but, here it is. My new found speed passion.

I've have a new love interest and it's with my big twin lumped beauty.

I bought an electric ocean cat 'Genesis', 1045mm overall and came with 2075kv BL motor and running hardware, including plastic prop. I never ran it with that prop as I changed to an Octura X437/3 Blade Beryllium Copper type before it touched the water.
No radio, ESC or batteries came with the hull.
http://i55.photobucket.com/albums/g1...1-31141402.jpg
http://i55.photobucket.com/albums/g1...s/IMAG0197.jpg
http://i55.photobucket.com/albums/g1...1-31141602.jpg
http://i55.photobucket.com/albums/g1...1-31141747.jpg

This configuration (ie motor) can only cope with 4S as you will soon see why.

The first run was done with the stock motor (obviously), a Mamba Monster ESC (mainly due to it's auto fan & I never had another ESC that could take 4S) and 2 x 5000mAh 40C 2S 7.4V lipos in series which is a 4S 14.8V configuration. Which ran perfectly, however, was a tad slow and had hot packs afterward. I think 2 x 4S 4000-5000mAh 40C in parallel would be very good for this setup.
http://i55.photobucket.com/albums/g1...s/IMAG0195.jpg


http://www.youtube.com/watch?v=5gjTZz71OjE

The second was with same motor, Turnigy 180A Continuous 360A Burst 2-6S ESC running on the same 4S configuration. It was short lived as the batteries hit LVC before my fun was done.
No footage as I was on my own.
http://i55.photobucket.com/albums/g1...2-04131918.jpg

The third run was same specs as above except I thought I'd be daring and run 70% power on 6S. For a longer run time.
Amps were still there and the motor died...........overheating from a kinked waterline preventing cooling wouldn't have helped either. I'm lucky it was just the motor!!
For that second it went, it was fast and I knew at that point, I wanted to go faster!!


http://www.youtube.com/watch?v=fhzfxDA5pi8

The third run was with a new motor, the one chosen began it's life in my Hong Nor BL converted truggy for about 2mths running happily on 5S.

I pondered my overheated motors demise and kept staring at these 2 Medusa Industries powerhouse motors glaring at me with their bright blue hue. Both were a 36mm diameter can, both 2000kv, but one was 10mm longer which will always produce ample torque for most applications.

So, there it was, squeezed into what looks to resemble a 2 yr olds t-shirt on that beautiful big busted girl you always dreamed about as a dirty old man that you are now, you know who I'm talking about! :lol:
A Medusa Afterburner 3680-2000kv 1300W capable of engorging on up to 30V of power!!
Perfect for my meager 22.2V kids toy. :wink:

After a nice run and being yelled at twice...........for being "in the way" of her below average videography (<< made up word) skills I came round for another run and spun the flex drive to the prop. Lucky for me it had enough grip to slowly make it's way back to shore.
http://i55.photobucket.com/albums/g1...2-10173118.jpg
http://i55.photobucket.com/albums/g1...2-11130426.jpg


http://www.youtube.com/watch?v=b6RcQlK0xO0

Once I install a thicker flex drive and the correct sized shaft for the prop aaaannnnd balance & polish the new prop a larger Octura X440/3 blade with more pitch, I'll go back with 2 x 6S 4000mAh in parallel with 8000mAh for more available amperage and do a couple of runs with the different props to gauge the difference.

That is one bad boat. I know it's hard to tell from a video, or on water, but it looked to me to be going 70mph. Impressive.

Great! I have been thinking about what I could do with exactly that hull... Thanks for the inspiration - both for the boat and to get the wife to do some filming for once...

Nice. I have one with a Turnigy 240 & 1521 1Y. They are fun

Where about in Aus mate?

Melbourne.

A few guys where I work part time have boats.

RC Garage