Amp draw from neu motors?

[justneedspeed]

I wa thining about getting a neu motor for a build im about to do but need to kow what the amp draw is on the neu 1500 sreies motor. More precisly the 1515? is yhere a motor chart somewhere becuz i cant seem to find one. Thanks in advance.

[SJFE]

Charts are more to give you the max amp draw the motor will take before failure. There are enddles combinations of hull, HW and props to be considered. About the only options are the FE calc and knowing someone who runs the setup you wish to run...Oh and has a data logger

[D. Newland]

What are you wanting to build?

How fast do you want it to go?

How long do you want it to run for?

Answer those questions and information will follow.

[Fluid]

A 1515/1D can pull over 300 amps without failure regardless of any chart - I have the datalog to prove it (only for a few seconds though!). A 1515/2Y will draw less. It mostly depends on the specific motor, how you prop it and the general setup of the boat. Generally the longer the can and/or the lower the wind, the more amps you can expect to pull. Exactly how many amps depends on voltage, prop, hull, etc.



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[Flying Scotsman]

A 1515/1D can pull over 300 amps without failure regardless of any chart - I have the datalog to prove it (only for a few seconds though!). A 1515/2Y will draw less. It mostly depends on the specific motor, how you prop it and the general setup of the boat. Generally the longer the can and/or the lower the wind, the more amps you can expect to pull. Exactly how many amps depends on voltage, prop, hull, etc.



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Jay, herein lives the problem. What ESC's are capable of this amperage draw??

Douggie

[Bill-SOCAL]

40.160 can take it in SAWS type bursts.

[justneedspeed]

What are you wanting to build?

How fast do you want it to go?

How long do you want it to run for?

Answer those questions and information will follow.

1) drifter L hull
2) as fast as i can get it to run with runtime in 3-4 min range
3) 3-4 min

hopefully this helps

[Fluid]

Jay, herein lives the problem. What ESC's are capable of this amperage draw??

I logged it on my MGM 16024. More than once. Also ran the motor with the same setup on a Castle Barracuda 180 and a Hydra 240. I hurt the 240 though - not sure when but it gave up the smoke a few months after the LA SAWs.



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[Fluid]

1) drifter L hull...2) as fast as i can get it to run with runtime in 3-4 min range....3) 3-4 min....hopefully this helps

Not really. How many cells? A Drifter L is probably best run on at least 6S if you want that much run time with decent speed. A 1515 is too small IME for that much voltage and that much run time except on gears. A 1521 or better yet a 1527 would be better, the wind depends on the speed and duration you want.

If you want 4 minutes of run time and you choose two 6S1P/4500 packs in parallel then you'll pull about 110 amps average to do it safely. Thats about 2300 watts at the prop, plenty of power for that size boat to get into the 50s. You could do it on 4S, but not at that speed with that run time.



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[justneedspeed]

Thanks fluid that was the info i was looking for.