X-Cat Twin

[DCMW]

Here's my latest project.
Converted Motley Crüe X-Cat with custom made engine stand offs fully adjustable.

[T.S.Davis]

Have you run it yet? That's just really cool.

[Tamelesstgr]

DAM! I've been wanting to do something like that. Looks like the motors look pretty scale with the hull, nice job!
What motor/esc/battery setup are you running? Can you post some pictures of the interior?

[DCMW]

Have you run it yet? That's just really cool.

Thanks yea I've always wanted to build an X-Cat so I did it, will be building another and probably selling this one.

[DCMW]

DAM! I've been wanting to do something like that. Looks like the motors look pretty scale with the hull, nice job!
What motor/esc/battery setup are you running? Can you post some pictures of the interior?

Twin 2600kv 4s engines with twin Turnagy 120 ESCs with twin 5000 4s Revolectric battery's.

[Doby]

Have you bat-tub'ed it yet....the CG should be very interesting!

[DCMW]

Have you bat-tub'ed it yet....the CG should be very interesting!

That I have not, gotta get everything situated inside then I'll play with CG.

[Tamelesstgr]

Any idea what it might run on the water?

[Doby]

Should be cool!

[DCMW]

Any idea what it might run on the water?

I'm thinking in the 50-60mph range once I change the plastic props out for some good ones, the plastics won't handle 4s for very long and flex to much anyway.

[Tamelesstgr]

Are you set up with counter-rotating outboards? Are those the TFL units from HobbyKing?
I would have liked to build one that would go 40'ish

[Tamelesstgr]

or is this the unit you are using?

http://www.hobbyking.com/hobbyking/store/uh_viewitem.asp?idproduct=66147

[DCMW]

or is this the unit you are using?

http://www.hobbyking.com/hobbyking/store/uh_viewitem.asp?idproduct=66147
That's the ones, yea you can counter rotate them and I might just do that if I can find a l/r prop that will fit.

[ray schrauwen]

That's the ones, yea you can counter rotate them and I might just do that if I can find a l/r prop that will fit.

And cable!

[DCMW]

And cable!

Ah that's right, I can make a right hand cable for it:)

[DCMW]

Pics of inside electronics.

[Brushless55]

This is so cool !

[Tamelesstgr]

Was it difficult feeding the wires through the double hull?

[DCMW]

Was it difficult feeding the wires through the double hull?

Wasn't the easiest task but that's what good little needle nose pliers and some patients plays a good part:)

[Jesse J]

That is the tightest x cat model I ever done saw! Glad to have seen in person!, steering is rock solid!

[Tamelesstgr]

Part of me wants to see a running video cause it will be awesome.

Part of me doesn't want to see one, because I'm going to want one for sure.

[Tamelesstgr]

I'm curious about the props, what size if the propshaft? 3/16"? Kintec and OSE have nice CNC units you could try.
What is the connection at the motor shaft and cable? Is it a collet or grub screw type linkage?

[DCMW]

I believe it's a 4mm shaft.
Yes motor is coupled to shaft with a collet that has 2 set screws on the cable and the engine shaft, have yet to have one come loose or spin.
Stock props are marginal at best, would be better with some aluminum or copper ones in same size if I could find them.
Props are 30mm 1.4 anyone got a couple:)

[Tamelesstgr]

So it's something similar to this (not the right size, just for conversation)
http://www.offshoreelectrics.com/proddetail.php?prod=ose-1340

I know I tore up the tip of the cable on my son's Shockwave with the straight coupler going from 2s to 3s with a 3000kv motor. Switched to the collet style after that and haven't had any issues. Do you think there is room in the assebly to use a collet?

something like this (not the right size, just for conversation)
http://www.offshoreelectrics.com/proddetail.php?prod=ose-81513

[Tamelesstgr]

Maybe this is the answer for the 4mm prop shaft? would allow you to run 3/16" bore props:

http://www.offshoreelectrics.com/proddetail.php?prod=ose-1030

[Tamelesstgr]

Some other prop options

http://www.ebay.com/itm/Rc-Propeller-CNC-Left-Right-Prop-437-For-4mm-Shaft-Rc-Boat-/161479939031?hash=item2598f453d7:m:m-PJsqPLbxOIUprEzlk1mnA
http://www.ebay.com/itm/brass-538-left-right-prop-dia-38mm-pitch-57mm-P1-5-for-4mm-shaft-rc-boat-/140920070057?hash=item20cf7d9fa9:g:grkAAMXQTghRJf-N
http://www.ebay.com/itm/New-1Pair-Brass-5237-Left-Right-Prop-Dia-37mm-P1-5-for-4mm-Shaft-RC-Boat-P495-/361385707247?hash=item54244446ef:g:4NgAAOSwLqFV8lg w

[DCMW]

Going from the 4mm to 3/16 shaft is no biggy but finding 30mm 1.4 props has been the challenge.

[Tamelesstgr]

http://www.ebay.com/itm/4mm-VXP-FAST-Upgraded-X-Series-32-40mm-1-4p-CNC-Prop-EP-Electric-Boat-Octura-M-/171932968902?var=&hash=item280800e7c6:m:malgyJL-DpHSbknK8UibWLQ

32mm

[T.S.Davis]

Part of me doesn't want to see it run. I don't want to shatter the vision of it running in my head.

[DCMW]

Part of me doesn't want to see it run. I don't want to shatter the vision of it running in my head.
Well it's going to be for sale so you can run it or shelf it if you buy it:))

[Tamelesstgr]

Was just curious if you ever got this hull wet?

[Fluid]

He hasn't been around for several months.



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[firetech]

Nice. I never thought about twin outboards.