The diagram below shows the motor order for a frame type Octo Quad H: Source: https://ardupilot.org/copter/docs/connect-escs-and-motors.html#motor-order-diagrams

The image below shows the Cargo drone model with the motor order and labels:

• The first three digits in the labels indicate the position of the motor:
  F / R - Front / Rear
  R / L - Right / Left
  T / B - Top / Bottom
  

• The number indicates which output pin from the flight controller should be connected to each motor ESC.
  Image: Pixhawk output pins.

• The last digits indicate the direction of rotation of the motor:
  CW - ClockWise
  CCW - CounterClockWise

Helix H25F 1.80m
H25F 1.80m R-LES-04-2
H25F 1.80m L-LES-04-2

RET 30
The motors were properly labeled.

HBC 18063-3
Labeled with the numbers for the flight controller pin connections.

Hex Cube Black Flight Controller

Date: 09.sept.2021
Place: FabLab HSRW Kamp-Lintfort, Germany
Carried out by: Jefferson Sandoval and Harley Lara

Video: Testing ESC + motors reaction and direction of rotation