Project 41" Sprintcat!

[FighterCat57]

Tracking just updated, the Sprintcat will be here today!

41" Sprintcat
Twin Neu/Castle 2200kv
Twin Turnigy 180 ESC
Twin 4mm Drive Struts w/counter rotating cables
Single 95mm Rudder

I'm not sure about motor mounts though, I just found out the mounts I was going to use don't work with the Neu/Castle 2200kv motors. Suggestions on water cooled mounts for the Neu/Castle finned motor would be greatly appreciated!

This should be one fast mofo! I can't wait to get it started!

[FighterCat57]

Think I need a bigger rudder though.

[Brushless55]

Right on, should be a sweet twin!

[FighterCat57]

Right on, should be a sweet twin!

Think I need to go up to a 140mm rudder or will a 95mm be OK?

95 is the same size as the 32" cats are using. I'm just thinking it might not be enough to turn it... The 57" cat uses a 170mm rudder which is way more than I need for the 41" hull.

[forescott]

I doubt you'll need cooling for those motor mounts. The castles run super cool!! Cant wait to see it!

[FighterCat57]

I doubt you'll need cooling for those motor mounts. The castles run super cool!! Cant wait to see it!

Yeah, you're probably right, but caution never hurts! I have some simple mounts ready to go, but would prefer the water cooled setup. Maybe I'll epoxy and aluminum coil to it and call it water cooled!

[FighterCat57]

Holy Sh!t, this is a BIG BOAT!

It's as wide as my 57" cat.

I'm really starting to question the installation of the tiny CC/Neu 2200's in such a big hull!

I'm starting to think this hull needs more. A lot more. Like twin Little Screamers. Twin Monster 200's and 6 or 8- 6s battery packs in series parallel. Wow, that's over a grand.

Unless I'm wrong and the 2200's will push her, I think I went in over my head and budget on this one.

[skellyo]

Perhaps Castle/Neu 1520's or 1717's instead of the 1515's?

[Fluid]

The biggest problem is the Kv of the motors. This size hull needs pretty big props and the little 2200 motors just won't spin them well. Two 1521/1.5D or equivalents on 4S each spinning x450s etc. will give better overall performance - but it depends on what you want from the boat. The above is the equivalent of an 8S single power-wise so there is plenty of power. Less expensive motors with similar KV and weight are certainly an option if cost is a factor.


.

[Brushless55]

Holy Sh!t, this is a BIG BOAT!

It's as wide as my 57" cat.

I'm really starting to question the installation of the tiny CC/Neu 2200's in such a big hull!

I'm starting to think this hull needs more. A lot more. Like twin Little Screamers. Twin Monster 200's and 6 or 8- 6s battery packs in series parallel. Wow, that's over a grand.

Unless I'm wrong and the 2200's will push her, I think I went in over my head and budget on this one.

Don't forget about the guy on youtube that has your big cat on twin 8XLs on 4s

[FighterCat57]

Don't forget about the guy on youtube that has your big cat on twin 8XLs on 4s

I was actually working on copying Rumdog's Sprintcat setup, but I think I got the hull size wrong and went too big?

If this is the same size as his hull then... well.... Kick ass!

So... right now... I don't know if I'm happy or sad just yet!

[Brushless55]

I was actually working on copying Rumdog's Sprintcat setup, but I think I got the hull size wrong and went too big?

If this is the same size as his hull then... well.... Kick ass!

So... right now... I don't know if I'm happy or sad just yet!

I could be wrong, but to me it looks good for two 8XLs in a big cat
and the Castles should really wake it up!

http://www.youtube.com/watch?v=0SdG4Kis9NA&feature=player_embedded

[FighterCat57]

I could be wrong, but to me it looks good for two 8XLs in a big cat
and the Castles should really wake it up!
http://www.youtube.com/watch?v=0SdG4...layer_embedded

Well then, perhaps it's game on!

I'm not racing it, just running it around in the ocean!

[Brushless55]

Well then, perhaps it's game on!

I'm not racing it, just running it around in the ocean!

Get er done bro!
I'm still having a hard time deciding of either doing a twin Cat like your doing or a twin Hydro, That I don't think anyone has done yet..
I'm just having an issue letting go of the cash

[FighterCat57]

Get er done bro!
I'm still having a hard time deciding of either doing a twin Cat like your doing or a twin Hydro, That I don't think anyone has done yet..
I'm just having an issue letting go of the cash

Apparently I'm not. I can't seem to hold on to my cash this year!!

I'm certainly loving the twin cats. The mono cats are nice too. They just look really cool in the water and the twins sound awesome!