3.2. Physical inspection and preparation

Physical inspection after aircraft assembly is completed, including:

1. Check if there is any damage or cracks on the fuselage;

2. Whether the buckle connections of each component of the fuselage are tight;

3. Make sure all the motors and propellers are tightly fastened;

4. Rotate the rotor and tail propellers manually, to ensure the propellers rotatenormally;

5. Check if the GPS and Video&data link antennas are installed properlly;

6. Check if the airspeed tube is clear without any block.

7. Use 92# or 93# gas, 2T 900 oil, Gasline and oil mixing ratio with 25:1 or 30:1, use the gas can from Yangda to get the mixing ratio easily.