Cat Build(Here kitty kitty kitty)

[Darin Jordan]

Darin - I'm still using the stock plastic ones! Haven't ordered the replacements yet ...

What you might consider is that the plastic ones on those units are very flexible, and that hull is pretty big and heavy compared to the ProFisherman... If you can get the Graupner 36mm props, or even the 31mm props, I think you'll have better luck...

If you aren't counter-rotating the motors yet, you might also try the purple ProBoat props for the Miss Bud... I used those on my ProFisherman and they worked great, and are CHEAP to buy... you also get TWO to a package! I think they are about 34mm or so...

Congrats on your wife's promotion... that's great news!

[Eodman]

Darin - I got the props ordered so that should help! The Cat will plane & stay on plane as long as I don't turn to sharp! Then cavitation starts and it drops off plane but will go back up on plane after the turn!

Last nite I adjusted the motor mounts a little more so I'll run out at lunch and try her again! Right now I want to guess she's approaching the speed of our Villian EX! My son & I are going to run them side by side this weekend so I'll be able to tell then!

I'll try to post pictures & a short video too!

[Eodman]

Well I have a short video of the Cat from my phone but its a verizon account & I can't seem to get to download to this site .......... any suggestions! I can view it but can't seem to share it with this site! Its only like 15 seconds but at least you can see it move! I'm bummed!

[Stealth Assassin]

Try photobucket.com It's free...

[Steven Vaccaro]

http://s214.photobucket.com/albums/cc246/Eodman_photos/?action=view&current=110407_14131.flv

[Eodman]

Well Folks I tried to post a short video - even asked Steven to help by emailing it to him and still no good !

I will take the video camera out this weekend and get some footage of the cat running! Hopefully I'll have the new props from OSE by then! Not Ose's fault - mine ... I must have had fat fingers when typing in my ship to address! If I have the new props on they will be counter-rotating and inward so that may help with keeping the props in the water also!

I did move the batteries back a little & that helped the cavitation some!

[Eodman]

Lipo update ---- Well I tried the Cat at lunchtime with the 3700 2s1p's in it made a big difference! I'm guessing maybe 7 or 8 miles an hour difference! Very noticable... however without the extra weight of the NiMH she has a higher center of gravity and this is very noticeable in turns!!!!!

Have a small problem with it wanting to turn right alot even with the the counter rotating props! Not sure why!

[Stealth Assassin]

Rotating Inwards or outwards? Are you sure the brushed motor In reverse polarity would have the same timing or hp?

[Eodman]

Both inwards --- it should be close in hp! This morning I spent some cleaning the drives & when I took the lower units apart to clean I discovered that the inner bearing was broken! The inner race was on the shaft and the outer race was cracked and in the lower unit housing!

Although this may not be the only reason it's certainly a large part of it!

So I guess Steven is going to get an order!

No Cat action this weekend!

[Avanti]

you want to run a cat boat turning the props outwards (atleast that is how most full size boats run, I use to build cats)

[obrien]

Avanti, the outboard cats turned out and the inboard cats turned in. But that was with the drives in a much different location that what he has with this setup. Since his drives are in the tunnel, it could go either way. Typically turning the props in will give more bow lift and turning them out will give more stern lift.

Eodman
If you decide to try to move the motors behind the sponsons over the winter, you want to gearcases behind the sponsons, but as close to the tunnel side of the sponson as possible to get as much prop surface into the tunnel area as you can.

Again this not being a full size boat, it may react much differently since the weights are going to be different.

[Stealth Assassin]

Avanti, the outboard cats turned out and the inboard cats turned in. But that was with the drives in a much different location that what he has with this setup. Since his drives are in the tunnel, it could go either way. Typically turning the props in will give more bow lift and turning them out will give more stern lift.

Eodman
If you decide to try to move the motors behind the sponsons over the winter, you want to gearcases behind the sponsons, but as close to the tunnel side of the sponson as possible to get as much prop surface into the tunnel area as you can.

Again this not being a full size boat, it may react much differently since the weights are going to be different.

Dead on... The differance with most R/C IMHO... Is the weight location.

[aquinosteven]

what kind of speed do you get out of thats. i want to do the same thing but with twin 800s

[Eodman]

Well up until about 3 hours ago it was running about even with a stock Villian ex ... however after work the tell tale signs came out of one the EP1's so its rebuild time! I think the water intake was blocked because the other EP1 & esc were just warm and this one was hot!!!!!

So I'm going to pick up a couple of 19 turn motors and move the motors out to the edges of the tunnel and it let her be! I think the hop up & the relocation of the motors should make a little faster than the Traxxas!

Thats what this started out to be --- a learning experience so when my son & I start the Maritimo build we have some idea of what we are doing!

[aquinosteven]

wow i though it would be faster cause i got a villain ex and i was looking to do a build with a little more speed