I did some field tests today and took some readings on the Mavic Air. It does not have an exterior heat sink as does the Mavic Pro, but it somehow still keeps itself well ventilated despite it's 4k processing power, and all it's innovations and high tech features.
Ambient temperature 67°, readings were taken at idle after 5 minutes run time.
Gimbal pitch motor temp 107°
Gimbal roll motor temp 95°
Gimbal yaw motor temp 101°
Battery temp 106°
Top shell on top of rear vent 110°
Rear vent outlet temp 120°
Motors 110°
Fan output speed at rear vent 9 mph
Ambient temperature 67°, readings were taken at idle after 5 minutes run time.
Gimbal pitch motor temp 107°
Gimbal roll motor temp 95°
Gimbal yaw motor temp 101°
Battery temp 106°
Top shell on top of rear vent 110°
Rear vent outlet temp 120°
Motors 110°
Fan output speed at rear vent 9 mph