50" apache power

[ReddyWatts]

I think you could run a 40" to 43" hull with twin KB45 motors on 20 cells each and run somewhere around 40. Someone should be posting a build like this in the next couple of weeks.

[Piranha2]

look up a guy on eBay.......tazdrev........he had a bad azz boat before....BIG power!!!

[Piranha2]

oh yeah, you're going to need around 4hp for 40mph.....

[ReddyWatts]

A dual drive KB45 on 20 cells will have 5 hp.

24v X 85a X .9 eff / 746 = 2.46 X 2 = 4.92 hp

[SJFE]

My first 10 ft jon boat had a 7.5hp gamefisher single cylinder ob on it. It did 17mph with 300 pounds of passenger, cooler and saftey gear in it. It bogles the mind thinking about 5hp in rc boats.

[Doby]

My V-24 mod has around 13 Hp and does around 45-50 without even getting warm,,I reall need to prop it up a lot

[ReddyWatts]

It will need 5 hp to push all of that weight. 40 NiMH cells and two KB45 motors. WOW!!! 15-18lb boat ??? Sounds more like a nitro weight.

Robby76 has a dual drive 42" ABS cat with 32 cells and 2 Fiegao motors and it weighs 12lbs.


Might need a back supporter to carry it to the lake. lol!

[skidooguymxz550]

i'm 16, my back is still in great condition. so this seems doable?

[ReddyWatts]

Yes, I think it will be an awesome boat. You could always go to lipos for more speed.

The robby76 boat travels at 43 mph on NiMH batts and throws up a wall of water behind it. He is using Feigao 10XL's / trans with X447 props, hex controllers. A head turner.

[Mich. Maniac]

yes yes, On its wonderful way from Australia. I hadnt realized these motors were soo powerfull. gonna need some huge props. Steven still have that one from his vacation????

[skidooguymxz550]

sweet. i think it's time to build me and my dad a scale warpath

[Doug Smock]

Cats fair better with twin screws than monos do. Monos have a tendancy to unload the outboard drive in the turns. That's why we don't see more of them.

Doug

[skidooguymxz550]

the handling of cats scare me. i can't get my 26" scat cat figured out so i don't want to try it bigger or more expensive. besides. nothing beats a vee in the rough stuff

[Doug Smock]

Good luck with the project. It will be interesting to see how you guys overcome the issues associated with twin screws in a mono.
Be sure to post some pics and vids.

Doug

[ReddyWatts]

When I said it would be an awesome boat, I was thinking a 40 to 43 inch cat like I said earlier in this thread.

Here is a video of robby76's cat on its maiden run.

http://www.rcflix.com/photopost/showphoto.php?photo=2299&cat=500&ppuser=3055