Aeroplayin
70cc twin V2
21x8 is the limit with the 206 on 12S IMO. If you ask Ken, he will say that 155 degrees F, 72 Amps, and therefore 3200W, is the edge of the envelop for the motor. If the motor can hold efficiency and actually do 7090 RPMs, it will be right there with the 195Kv. That's also 24 pounds with the 21x10.
My 206Kv is settling in at 2650 to 2725 Watts and 60-62A after the initial 3110W and 68A on fairly new batteries (less than 20 cycles), and I'd bet that all 12S setups will come off the 3100W peak just as much, regardless of the wind, and maybe more with a 21x10.
My Falcon 21x10 W2E is 87g, which is higher than you would expect, but I really like the prop. It bites well, and the throttle response is very good, especially with a Ice2. I'm pretty sure I'd be impressed with performance if I could spin it to anything over 7000 RPMs consistently on anything under 13 pounds. This may all depend on your batteries health, but my thinking, as more results come in, is that we've reached the limit on these motors and voltage sag, heat, and/or commutation issues are all that's left if we push them higher.Just my opinion, but it's usually what happens as we load the motors more.
I have already been thinking about a 165Kv on 15S and even emailed Ken about the wind potential -- but he probably hasn't stopped laughing yet so no response. This may actually be a more efficient 3200W because it's the same 68A as I'm getting now. Not many decent motors out there under 700g with a 165Kv and the ability to do a consistent 7500 RPMs with a 21x10 beech.
As for flight time, 72A on 3300mAh is 21.8C, so 2.2 minutes at WOT and 80% capacity, so 2.2 divided by .34 is 6.5 minutes for me and 5 minutes for someone who flies more like Tom.
My 206Kv is settling in at 2650 to 2725 Watts and 60-62A after the initial 3110W and 68A on fairly new batteries (less than 20 cycles), and I'd bet that all 12S setups will come off the 3100W peak just as much, regardless of the wind, and maybe more with a 21x10.
My Falcon 21x10 W2E is 87g, which is higher than you would expect, but I really like the prop. It bites well, and the throttle response is very good, especially with a Ice2. I'm pretty sure I'd be impressed with performance if I could spin it to anything over 7000 RPMs consistently on anything under 13 pounds. This may all depend on your batteries health, but my thinking, as more results come in, is that we've reached the limit on these motors and voltage sag, heat, and/or commutation issues are all that's left if we push them higher.Just my opinion, but it's usually what happens as we load the motors more.
I have already been thinking about a 165Kv on 15S and even emailed Ken about the wind potential -- but he probably hasn't stopped laughing yet so no response. This may actually be a more efficient 3200W because it's the same 68A as I'm getting now. Not many decent motors out there under 700g with a 165Kv and the ability to do a consistent 7500 RPMs with a 21x10 beech.
As for flight time, 72A on 3300mAh is 21.8C, so 2.2 minutes at WOT and 80% capacity, so 2.2 divided by .34 is 6.5 minutes for me and 5 minutes for someone who flies more like Tom.
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