CX7 means Coaxial Copter, vehicle 7.

WTF is back again! This is a new coax, which is twice as light as CX5 and CX6 due to different motor mounting and few other design decisions. What is special about this coax, is that it runs on batteries from disposed vapes found thrown away in improper places. So, in a sense, it contributes to protecting the environment from lithium pollution.

The first day of testing featured morning and evening tests. The morning tests were with nearly all-default parameters, whereas for the evening tests some PID values were increased based on the morning test results. And... well, this one flies!