Here is some of the camera gear I bring along to document flights:
GoPro frame mounts
GoPro Suction cup mount
Cockpit audio cable
This cable allows recording of all cockpit intercom and radio audio during flight.
Extended battery for exterior GoPro
With WiFi on and in the cold temperatures at altitude, the GoPro mounted to the outside of the plane quickly drains its battery. Hopefully this extended battery pack will provide enough juice to keep the camera alive on each flight leg.
ND filters to eliminate prop artifacts