1When do you use peripheral vision to fly your drone?
At night when the rods in your eyes are active
2How long does it take for the rods to become more efficent than your cones?
7 minitues to become equal, 30 mins for full sensitivity
3Why should you avoid tobacco use for night time operation?
It decreases isual sensitivity at night due to the carbon monoxide increase
4What are the 4 night vision illusions?
Autokinesis
False Horizon
Reversible Perspective Illusion
Flicker Vertigo
5What is autokinesis?
When you stare at a bright light with a dark backround the light will apear to move even if its not
6What is false horizon?
A line of lights that make you think a certain straight line is the horizon when in reality its not, like water refelcting on water
7What is reversable perspective illusion?
Happens when your looking at light at night and it appears to be moving away from you but its actually coming towards you
8What is flicker vertigo?
Flashing lights with a frequency of 4 to 20 cycles per second can produce nausea, vomitting, and vertigo
9What are some reasons you can lose line of sight when flying at night?
Drone behind an obstacle
Could be entering a cloud/fog
Could have crashed into terrain or into a structure
Anti collison lights have stopped or failed
10When do you need approval for flying at night?
When flying in class B C D or E2 (E2 starts at surface)
11Where is the red nav light located on the plane?
Left wing
12How many strobe lights are required to fly at night?
1