Lack of power - only 20% possible

Hello Foilguy,

yes you are right.

In the moment I think, everything is going right.

The motor is programmed with a speed limiter. That´s the reason why I get 20% thrust without water and 50% thrust in the water bucket. And it should be 100 % in the first try in the sea.

I will try it and tell the result. (It will take some time, because I have to fix the ESC and pot it.)

Thank you for your advice.

Best regards

Frank

Open the ini file. Comment out the line “water bucket 50%” and uncomment “sea 100%”.

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Dear rttn,

thank you. First I will try it in the water. I will seal and pot everything and give it try.

Best regards

Frank

Yesterday I had a first try. And yes, it worked well. Fully power under load. Yeah!

The motor has a max turning speed. So it stops at 20% in the air, 50% in the warter bucket and 100% while I stand on the board.

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It’s actually not lack of power or rpm limits that makes this behaviour.

Without load only a very small battery current is needed for full speed in current control mode, 1-3A is enough. Speed achieved in current control mode is limited either by the defined limits in the esc or by the voltage of your system and kV constant of the motor.

Under load it will naturally reach higher current and higher power (but not higher duty cycle)

20% is a weird number. Where did you find it?

Yes, exactly, the spinning speed is limited. Therefore I achieve 100% of the performance under real conditions and only 20% of the performance on land.

In any case, that’s what the remote control shows me.

Thank you for the explanation.

Best regards

Frank

You don’t get 20% of the (performance) on land, and this is my point, the noload power consumption is more like 5% of the max loaded power (150W vs 3000W)
Therefore the 20% is not correct, this is some other percentage unrelated to power or performance.

Well, whatever. It’s great that it works for you😀

Good to know. Thank you.

Best regards

Frank