This article documents a comparative test of a Hobbywing X-Rotor 40A with BLHeli firmware and a Hobbyking 9261000003 40A with SimonK firmware.
The motor is an inexpensive BC3530-14 1100kV motor loaded with a 11×4.7″ slowfly Gemfan propeller, power input to the drive is a little over 300W at wide open throttle.
Battery is 3S fully charged.
Tests were conducted with a script that I use consistently with asrg and eLogger to capture current and rpm, and all tests conducted at similar pressure, temperature and humidity, altitude is 700m.
BLHeli configuration
The X-Rotor 40A is configured with BLHeli v14.8 MULTI, default BLHeli config, then a throttle cal for 1030/2000 performed.
SimonK configuration
The Hobbyking 9261000003 40A is flashed with SimonK’s tgy Hobbyking 9261000003 40A (1e4c01782eff85da3971f628a3bd599b7a0725eb) 15/10/2015.
FET dead times are set rather high at 2000s to be compatible with the slower F40-A. Previous tests have indicated that 1200µs dead time for high and low FETs suits the 9261000003.
Test results
Above, the test run of Hobbywing X-Rotor 40A with BLHeli v14.8 firmware. Continue reading BLHeli Hobbywing XRotor 40A (MkII) vs SimonK Hobbyking 9261000003 40A