I just bought T-Motor 200 combo air gear 2205 2650KV. The manufacture says that at 100% throttle using DAL Prop the current flow is 27,4A. unfortunately (i think)  i also have bought Little bee esc 20A. So the question is what will happen if i combine that parts? Should i change the esc with 30A? 
Thank you and have a nice day!

If that 27.4A comes from a static thrust test, then you'll be fine with 20A ESCs.

Actual current is normally 25 - 35% lower than what a static thrust test shows.

(10-Sep-2017, 11:46 AM)unseen Wrote: If that 27.4A comes from a static thrust test, then you'll be fine with 20A ESCs.

Actual current is normally 25 - 35% lower than what a static thrust test shows.

What's static thrust mean?
*attached motor profile screen shot

(10-Sep-2017, 12:04 PM)Zaqyw Wrote: What's static thrust mean?
*attached motor profile screen shot

"static" in this case means that the motor is not moving through the air but is hard-mounted to a test-stand on a table or something.

(10-Sep-2017, 12:04 PM)Zaqyw Wrote: What's static thrust mean?
*attached motor profile screen shot

It means just what fftunes said: the measurement is taken with the motor and propeller mounted on a testing stand.

The figures from T-Motor are static thrust tests, so you'll be fine with a 20A ESC.

Little bees 20a are almost indestructible so I wouldnt worry too much

Oke thanks a lot all of you