atomic 58 inch catamaran motor question

[cgd2175]

good idea!! thanks Lenny Probably tomorrow im going to try te t600 1400 with the stock ESC (180amp)
if it works fine testing bats and weights then im placing a lipo order to run 2 6s in parallel

[Finest Racing]

I spoke to Damen, he is working on the pictures. I have not spoke to Ken yet. It has been crazy over here. It was my daughters birthday this week. I will be calling Ken tomorrow.
I will be checking the data tomorrow too.

I also use a GoPro using the head strap. Your head is always following your boat.

[cgd2175]

I could not go to test the new motor yet, I forgot that the shaft 6mm shaft coupler is on its way from OSE with other stuff but what amperage do you think is going to draw? Also want to put order on new 6s lipos to go parallel but Im not sure if Im going to need 65c of discharge.
The T600 1400kv motor is rated up to 8s with ...rated for 3250 watts
Planning to use the stock 54mm 3 blade prop, what C rate do you think I need running in parallel config?

[lenny]

I would use 40c turnigy,
Unless you have more money to through around.
Than I would look into getting some of the Dinogy cells.
http://forums.offshoreelectrics.com/...rand-Batteries

Also try to ask Ray Schrauwen and FastVee and Coolmind members about those T600 motors,
They have done some testing with them and should have some input for you.
I had asked about the new motor that HK had out in hear.
http://forums.offshoreelectrics.com/...etition-Series

Hear a link to Coolmind very cool vids. http://www.youtube.com/user/nasdoxen/videos

[Doby]

I have a t600 in my Genesis on 6S....good motor....gets pretty hot.....in a 58"cat on 6S??? I just don't know?????

[cgd2175]

Thanks Lenny...The stock motor is 1100kv, Im going to test this with all stock, the dif is the stock has 5mm shaft , expecting the 6mm coupler this week
20131215_170349.jpg

[Finest Racing]

Do you have a speed that you are trying to reach?

[cgd2175]

50mph...
Yours ran ok as I read with the 5692? near 60, very nice!

[Finest Racing]

The reason I ask is that the stock motor can hit 45mph. I had the stock the motor at 45mph without any tuning or adjustments.
With my new combo, I am going to bump up on the prop and fine tune it. I hope to hit 64-66 next time out. I am going to view the data tonight. This will tell me a lot.

[lenny]

Chris You should change all your connectors to basic 5.5 bullet,
That would be a very good upgrade for the whole setup.
My P1 KOS stock v500 2000kv runs pretty hot to some times,
Temps in the rang of 130f and up to 210f some times is normal on the these outrunners.
But with a little higher timing it help it run a little cooler for me,
Do you have a temp prob for checking temps ?

[cgd2175]

Yes everything goes cc 6.5 as I'm putting a CC 240 I want to try and standardize my escs, motors and batteries. The traxxas connector is temporary. In my test I'm going to take temps also and share.

[Finest Racing]

The Traxxas connectors gave up on me in the middle of the lake. One time the plastic got soft and reshaped itself. The next time the solder let loose and the wire came off the contact.

[ray schrauwen]

If I knew the weight of the hull empty I could get a better idea of what is possible for this large hull on 6S and 1400KV.

I ran the T600 1400kv motor on 5S2P old PolyRC cells, 10000 mah total. I ran it for 6 laps plus mill racing on a full course in a 29" Promise hobby cat. The hull could handle the power because it was 3.5lbs EMPTY!!

I was turning a D/T x450 2 blade and the motor had a Vantex Water cooled motor mount. Came back fairly hot but, once an out runner is in the air it cools off much faster than an inrunner since every thing is more exposed to air and the magnets are on the outside. I had the strut set level and even with the bottom of the sponsons. More tuning would have helped but, it was a quick idea before a race.

You won't be able to turn the stock prop on 6S for very long without something going stinky, that's a really big wheel to turn.

I ran a T180 esc on fairly stock Auto settings so there is probably a best program that I never got to.

If I had the hull I'd run the T600 880kv motor on 8s -10S starting with a 450 prop then see what is possible.

Lenny, I should have bought that used T600 1400kv motor when I had the chance.... oh well.

If anyone wants T600 880kv to test out let me know I have 2 kicking about.

I sold the 1400kv long ago and mounted a 880kv back into the 29" cat. Spun it up on 10S1P but, never ran it.

Maybe I'll charge the cells and take it out in the snow.

With 5S2P, x450 D/T T180 that 29" cat was hauling out at about 50-55mph....

This

Shows when I ran it and you can see my orange cat pop out from time to time. The camera was on a 48" cat running 10-12S on a big lehner and Schulze 40-160 esc. I could keep up but, the rudder was too short to handle the corners effectively.

[Doby]

That was a fun heat!

[FastVee]

Hi,replying here to the pm.

I can only tell you what I think but:

the 880kv T600 motors I have used were ok but the~54" v-hull needed 2 of them and they were just ok, they were not running too hot but 1 is def not enough on it it needs 2 of this sized motors to work.

The 910kv motors that I have in it now are much more powerful and they run about the same temp as the 880kv but heat the esc and lipos more.

I use 57mm 2 bladed prop usually and it is perfect for the boat.


If you want to use 1 motor I would suggest lower kv, the 30k most suggest for fe is not needed to get the boat to go 50mph. (15k will get the boat to 30mph on 4s!)

The cat is lighter and easier for the motor so 1 motor could work in these 700+ sizes but I would try about 51mm prop first.

I am building same size cat atm and it will have 2 1250kv motors and I will aim to 60mph on 6s.

Something to think about...

-Pate