Yes, another Catamaran Build!

[rockwerks]

http://cgi.ebay.com/ws/eBayISAPI.dll...tab%3DWatching

Ive bought some stuff from these guys in the past few weeks, nice quality and very quick shipping. got both orders in about 7 days from purchase

[peells]

Yup that Looks like it should do the job

[peells]

Do you have a link to Joe?

[Dr. Jet]

Do you have a link to Joe?

http://solingerrc.com/

[ace028]

here is my power plant, notice the fan on the end bell, they should throw some serious air around the hull. the e-fan is a good idea, but if you keep your run times down heat should not be a real issue. are you going to duct the fan toward the motor so the air is forced over the can and not forward into the sponson?

Yeah, I had planed to duct it tward the motor, and since the motor mount doen't cover the holes in the endbell, some air would be forced inside the motor as well, but If I get some like yours I would not need to have a electric fan.

[ace028]

On the MHZ boats, I use the supplied MHZ hardware. Very nice stuff. On the BBY hull, I am using the "New" Solinger micro rudder. Very nice stuff from Joe.

With regards to cooling the ESC, I just don't have the room in the tiny hull for a fan. It has been coming in at about 145º or so after a long run, and that is about the limit. I have a similar-in-size Schulze 18.97FW that may go in that hull if (or when) the Chinese ESC fails.

I was thinking that on the chinese ecs, I can take off the shrink wrap and make a cooling plate, and use some heat transfer grease between the fets. On my renegade the CC25 one gets pretty warm, it has blistered paint on the side of the hull a little bit.

[Avanti]

minicatracing has the out runner coolers as well
$18 on this page

http://www.minicatracingusa.com/jollymotorparts.html

[ace028]

advanti, thanks for the info.

I have put a small ledge right behind the step, for the skin to adhear to. Then I covered the steps, and finialy trimed and rough sanded the overlaping edges. The step ledges still need a little work, but its starting to look like a cat. I need to get some more ply and a ca glue tip.

[ace028]

I have done some work to the steps, I trued them up, and faced the backside of the step with 1/64 ply, there is still more work to be done on them, but they are close, and the hull sits perfectly flat on the table, no warp to it. I guess the steps are suppose to be stepped at the sides instead of blended to the hull side like I did, I'm not sure that it will effect the performance, but I am not an expert.

[peells]

You still did a good job on them

[ace028]

The pic don't do justice to the straightness, once I get off my lazy butt, and get some ply, I can finish the bottom, and concentrate on powering it.

[rockwerks]

Im thinking that they might actually work better on this size of rig, the closed on the outer side of the sponson might just trap an air pocket in there and help with lift

[Avanti]

looking good ace

[ace028]

Thanks. Hope to see a build thread for your soon.

[ace028]

Finally got some more ply to finish the cat. Here I have covered the center bottom, and have sprayed spar varnish on the inside to protect the wood in case it gets wet, I will probably do one more coat of varnish, then I will start triming and sanding the top for skinning, and concentrate on powering it.