PDA

View Full Version : AC R42 Twin Outboard



timjz
11-17-2010, 09:48 PM
**************

Make-a-Wake
11-17-2010, 09:55 PM
This 3660 comes out of the side

http://cgi.ebay.com/rc-boat-hi-power-Leopard-brushless-3660-motor-2050kv-/250717617414?pt=AU_Toys_Hobbies_Radio_Controlled_V ehicles&hash=item3a5fef3d06

timjz
11-17-2010, 10:00 PM
Look close at the pic - It says "L-4074-2200KV"

Make-a-Wake
11-17-2010, 10:08 PM
Well crap...................thats retarded to use that photo. I wonder what the 3660's really look like now...................?

Make-a-Wake
11-17-2010, 10:12 PM
This link shows a schematic of the motor at the bottom................shows the wires out of the top.....................hmmmmmmmm.

http://www.rc-fans88.com/details.asp?prodid=2221

timjz
11-17-2010, 10:13 PM
Well crap...................thats retarded to use that photo. I wonder what the 3660's really look like now...................?

I agree. Take a look at the first link, it has a drawing showing the wires coming out the top. I would think an extra 4mm on the dia. should be fine.

Make-a-Wake
11-17-2010, 11:00 PM
Me too, 2mm per side really....hope you dont overpower the drive on those PB outboards with the big 40mm 4 polers.

timjz
11-17-2010, 11:17 PM
Would the esc's handle those motors? I'm not sure which wind to get.

Make-a-Wake
11-17-2010, 11:29 PM
I'd go with the 1900kv........................4s would be plenty..........you could run a couple of these props - http://www.offshoreelectrics.com/proddetail.php?prod=dh-aqub9760

Make sure the 40mm jackets arent too wide diameter-wise if you still want to use the cowl. The t120's should handle it fine.

EDIT - just realized those props arent L/R available................you could use Octura x442's they come in L/R rotation.

steveo
11-18-2010, 08:52 AM
i have a suggestion for a cowl, i have used a cowl from a proboat blackjack 26 really not the whole cowl just the cockpit maybe you could do the same with a blackjack 55, i assume your boat is 42" i know the bj 55 is larger you maybe able to customize it using to fit your needs

ScarabChris
11-18-2010, 08:53 AM
Cool....another twin outboard build. Were there so many outboard builds before I came in here?

timjz
11-18-2010, 10:11 AM
Cool....another twin outboard build. Were there so many outboard builds before I came in here?

I've had this in mind for quite a while now. First I was going to put twin OS 21's on my Dumas Skater, but I just didn't feel like messing with nitro anymore. Then the electric outboards just didn't look right on the Dumas. 2 boats & 3 sets of motors later, this is how my project ended up.

wparsons
11-18-2010, 09:39 PM
I'd go with the 1900kv........................4s would be plenty..........you could run a couple of these props - http://www.offshoreelectrics.com/proddetail.php?prod=dh-aqub9760

Make sure the 40mm jackets arent too wide diameter-wise if you still want to use the cowl. The t120's should handle it fine.

EDIT - just realized those props arent L/R available................you could use Octura x442's they come in L/R rotation.

I don't think you'll find right hand cables for the lower unit, but I might be wrong.

Make-a-Wake
11-18-2010, 10:32 PM
I don't think you'll find right hand cables for the lower unit, but I might be wrong.


Yeah.............thought about that too, its why i posted the 40/57 first.........then thought he may want counter rotation..........he could fab a right hand cable possibly.

timjz
11-19-2010, 06:21 AM
Cables are already taken care of.