Help

[Thomas Schlarb]

I've got the same motor.. on 1280kv you need to run 8s high discharge batteries.... 10 to 12 gage wire and you need a BIGGER ESC... like grsboats said SF240 or the SF300..

[Thomas Schlarb]

Sorry 8 to 10 gage wire

[Thomas Schlarb]

Big FE boats cost a lot and if you don't do it right it'll cost you a lot more... lol

[Fluid]

ok so far I have to run 6s batteries with what I have at 1280kv
so can someone tell me what bat to buy part# would be very helpful
wire size anyone have any paperwork for anything thanks jim

Let me be frank with the OP. What kind of speeds are you expecting? Running 6S with relatively low Kv motors will really limit your top speeds. Depending on your goals, you are making a lot of compromises which will work against you. Why twins for a first boat? Why a huge unproven 50" rigger...arguably the most difficult type of boat for a beginner? Boats like this are tough for FE experts to make work. I have seen MANY beginning FE boaters make simple mistakes which cost hundreds of dollars - compounded with a big, expensive boat.

There is no "paperwork" for boats like this, very few folks build them - BTW I wrote the book on FE boats (one anyway). The fact that you know so little about FE is a warning NOT to build this boat until you have some experience with smaller, simpler boats. From the FE beginners who I have watched, you have a 90% chance of failure with the big rigger. Do yourself a favor and shelve it for awhile and get an RTR first. Learn, make the mandatory beginner mistakes, then go big and fast with the right equipment.



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[grsboats]

Agreed with Fluid....very good advice/warning here!

[Thomas Schlarb]

Same here.. great advice

[jk20041958]

ok im already getting smarter with this electric stuff here is what I am starting with as some know my motor, 180 esc, the bullet connectors are 7or7.5 ? can you tell me, the batteries are 6s but what milliamps should I be able to run, #10 wire. and can anyone take a pic or two of this motor set up, again I am thankful for all the help its just not something I have built before, nitro and gas engines are what I know thanks jim

[Thomas Schlarb]

8mm connection on the motor to ESC. 6mm connection on the batteries. Again that motors kv is to low to run 6s...you need 8s and if you read the amp draw for the 1280kv configuration the 180 ESC is to small... and max MAH is 10000 in a race boat..

[jk20041958]

so there is no way to run that esc? I was at a hobbyshop Friday and 8mm bullet connecters would not work just a tad to largeand 6.5 were way to small, too wire the back of the motor, soo will a larger esc change the MAH or is that a standered, also the wire size should be larger as opposed to smaller 8 - 12 with a larger esc

[Thomas Schlarb]

MAH is just the compacity of the batteries.. more MAH the longer they will last... like we've been saying there is no standard when it comes to big FE boats.. only RTR.. I buy my own connectors and solder everything myself. I'd say no with that ESC. It'll run 6s and you need 8s or more. A larger ESC will provide you with the amp draw you'll need and you can run the voltage you need as well. Stick with 8 to 10 gage wire as well... just trying to help so you don't put it on the water and it last 10 sec and cost you hundreds of dollars.

[grsboats]

Specifications
X520 3Y System
Watts: 5280W
Max Voltage: 41V
Max Amps: 128A
Resistance: 0.0132
KV (RPM/volt): 730
Max RPM: 30000
Length: 102mm
Diameter (w/fins): 55.8mm
Weight: 925g
Shaft Diameter: 8mm
Length of extend shaft: 30mm

X520 3D System
Watts: 5280W
Max Voltage: 23V
Max Amps: 229A
Resistance: 0.0046
KV (RPM/volt): 1280
Max RPM: 30000
Length: 102mm
Diameter (w/fins): 55.8mm
Weight: 925g
Shaft Diameter: 8mm
Length of extend shaft: 30mm

This is the data of your motor....take a look to those numbers ...definetively no way to use your esc and be on the safe side!

[Thomas Schlarb]

very one I know is running this motor is running it on 10s in the 3Y configuration.