Created with Raphaël 2.1.2
-2.1
Human pilot by remote control
-3.0
-2.0
-1.0
1.0
2.0
3.0
1.9
Human pilot in cockpit
-1.9
Human pilot by remote control
-2.1
Autopilot
The scale ranged from +3 (extremely willing) to -3 (extremely unwilling).