Micro Scat Cat Twin

[Dr. Jet]

Someone asked me about this. Although it is on RRR, this person had problems registering. Here are some photos for you, as requested:

[Dr. Jet]

And a couple more:

[waynedawg]

cool i am going to run the same drive set up as you do in the hydro we are going to run a micro class like you guys do . would i use the same rudder assy from ose for a single motor set up?

[Dr. Jet]

Yes, that will work. Also, look at using the Octura aluminum "Strudder" for 1/8" propshaft (I think it is part number OC4STRA). I think Steve carries them on OSE. You can use the 0.098" cable, but a coupler to the 2.3 mm motor shaft may be hard to come by. Maybe using a 1/16" wire drive with one of Jeff Wholt's couplers would be the ticket. Maybe the complete MiniCat hardware system will work with 2.3 mm motors, I do not know, as I have never used it.

[waynedawg]

what is it that you have layed in the bottom and the sides of the boat?

[Dr. Jet]

That is carbon fiber mat with a layer of 3/4 oz. glass over everything. I did not pay much attention to the typical "Jet" neatness; rather I just stood back a few feet and threw carbon, fiberglass, epoxy, and Cab-O-Sil at it until it looked like a hull.

The hull is stiff as a board. All the floatation foam is structural, and glued in with expanding polyurethane glue. I could use the hull for a battering ram if necessary.

[waynedawg]

cool did you make the carbon rudder mount? and should it be mounted this way?

[Dr. Jet]

cool did you make the carbon rudder mount?

Yes, it also doubles as the servo mount. Very rigid assembly.

and should it be mounted this way?

I did it that way to get the rudder behind the props. The stock mount would have set the rudder in front of the props with the way my drive is set up.

By the way, I'm using a larger 3400 rpm/V outrunner than I am using in the hydros, and turning counter-rotating x430s on a single 2S1P 2500 mah 25C. It's not the fastest thing in my fleet, but it is dependable, stays dry inside, it's almost impossible to flip, and it sounds cool. I get long runtimes and cool temperatures. It is a great fun little boat.

One note: If you look at the profile photo, you may notice that I "chopped" it by about 3/8". I did this by trimming that amount off the top edge of the bottom hull prior to assembly. With the twin arrangement, I did not need as much space under the deck for a motor. I think it looks better than the stock "highboy" version.

[SJFE]

Way Way kewl!! Did Randy redesign this hull? I dont remember it looking like that.

[Dr. Jet]

Way Way kewl!! Did Randy redesign this hull? I dont remember it looking like that.

I "chopped" it by 3/8" to improve the look.

[Spot Me 2]

We need vids!!!!!!!!!!!

[Dr. Jet]

We need vids!!!!!!!!!!!

It's been a while since I've run this. It is waiting in the building queue for hull finishing and paint. Maybe I'll take it out again for grins and vids. At full speed, it turns left and right on a dime. At lower speeds, I can do figure 8s at full power in an area about 4' x 8' .

It accelerates to full speed quickly, but just just seems to hit the governor. It will not go faster. Motor temps are cold, so I think I'm just running out of prop (X430 L&R). I may try a higher Kv motor. Other people see it, and they think it's fast, but I know that hull is capable of going MUCH faster than the (estimated) low-mid 30s my setup sees.

That said, it's one of the most fun boats I have and it will be a sad day if I ever sell it.

[ace028]

Envy! Looks awsome!! I can't wait to finish my mini cat. Can't wait to see some vids!

[Avanti]

subscribing

[ace028]

Any updates DR. Jet?