Prop size
 

I just went out and tested my Turnigy 230Kv Outrunner using a 10S, 4000 milliamp battery and a 19-10 prop. I was only pulling 45 amps and about 1500 watts, is this underpropped? I haven't charged the batteries yet and they were just in the as shipped charge. This is my first large electric.

RE: Prop size
 

Definitely charge the batteries, and as you cycle (use and recharge) they will start to give you more power. They probably came at 3.7-3.8V, and at a full charge will read around 4.2V.

What (brand, style) prop are you using?

Let us know what happens after a full charge.

RE: Prop size
 

Jeff, agreed, charge and retest but i am sure you are under proped. 21 13 seems like it might work. what are max amps for the motor?

Chuck

RE: Prop size
 

thanks, I'll cycle them. I'm heading out of town for a week later today, so won't get it retested before I leave. I was reading 37 volts and they didn't drop down any taking full throttle load. It's a turnigy wood E prop, so it's pretty thin. I did go back and look and a lot of people are using 20 and 21" props with this motor on 10S

RE: Prop size
 

http://www.hobbyking.com/hobbyking/s...idProduct=4188

RE: Prop size
 

Jeff, the specs on your motor are very close to mine. Using the Himax 6330-210 F3Aas a reference, most are running a 21X14 on the himax due to a lower KV rating. For our motors at the slightly higher KV we should lighten the load a bit. I will be starting with a 21X12.

RE: Prop size
 

Thanks for the replies. I will go ahead a try a couple larger diameter, higher pitch props