Newbee needing help...

[Insanety]

The items in question are:

Turngiy 80amp HV ESC

http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=8945&Product_Name=Turnigy_Marine_80A-HV_Brushless_Boat_ESC

and

Turngiy 3656 2700kv
http://www.hobbycity.com/hobbycity/s...r_(WaterCooled)

As far as I know I can't use this combo, so I'm hoping somebody can guide me in the right direction. So I'm thinking if I buy the right motor and Ecs I have two "power packs", and a reason to buy a new hull.

So If anyone can give me a gentle push in the rigth direction, I'd be a happy boater very soon...

[FRED]

Newbie needs help

Nothing.

[Insanety]

Jupp, forgot to add type of hull etc.
I'm currently building a 33" balsa/ply cat (plans from this forum).

I could use the 3656/2700 in a 3s setup, but I'd need a new Esc.
Or i could use the 80amp hv esc in a 4/5/6s setup and find an low kv engine.
Not sure what is the best way to go.

[sailr]

You could either get this esc:

http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=8946&Product_Name=Turnigy_Marine_120A_Brushless_Boat_ESC

or get a different motor. Cost is pretty close to the same. I would recommend buying a Feigao 1oXL motor from Steven at OSE.

[Insanety]

You could either get this esc:

http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=8946&Product_Name=Turnigy_Marine_120A_Brushless_Boat_ESC

or get a different motor. Cost is pretty close to the same. I would recommend buying a Feigao 1oXL motor from Steven at OSE.

Feigao 1oXL motor you say, on 6s? right??



Don't you worry, I'm going to buy from steven very soon...

[FRED]

newbie

Nothing.

[Insanety]

Fred:
I understand, no need to go hogwild on lipos...
3s lipo is something I have and need since i do rc planes and helicopter, so stepping up to
6s (3s x2) is within reach. And since I help out my LHS, I get a good discount on lipos.

[Flying Scotsman]

Okay some questions ...what batteries with C and amp rating...sport or race running....what prop....what hardware..proposed run times. A 33" cat will need at at least a 12XL running on 5S or 6s with a high voltage ESC rated at 120 amps or more dependant on the prop

Douggie

[domwilson]

Here is some good reading... http://forums.offshoreelectrics.com/...read.php?t=271

[Insanety]

Douggie:
At the LHS we have some 2s 5000mAh 30c and some 3s 3200 25c.
Sport running
Props that I got is grim 40x53, and grim 40x52 3blade. open for suggestions.
HOR cat hardware.
Runtime?, how does 5min sound?
domwilson:
Thanks, have read it many times. Everytime I think I got it, I find somthing that dosen't compute and I'm non the wiser. A noob's tale...

[FRED]

Newbie

Nothing.

[sailr]

On 6S you might want the 11XL or 12XL. I only run 4S. I'm pretty sure the 10XL would handle 6S but a little lower KV might be better.

Feigao 1oXL motor you say, on 6s? right??



Don't you worry, I'm going to buy from steven very soon...

[Insanety]

Oops, i guess i stepped on your toes, i'll bow out!

I checked my toes (all 12 of them), non where hurting...

[FRED]

newbie needing help

Nothing.

[Insanety]

Oki, I now think know have an Idea for a setup
For my 33" cat I'm thinking an 11xl on 6s (3x 2s 5000mAh 30c)
As for a prop I run the numbers to FEcal, an it suggested a octura M435/3 or grimracer 36x55.
According to FEcalc the amp pull is around 50amps +-.
Am I going of the deep end here boys??