Why do airplanes use knots?

Related questions

1. What is vs1 airspeed?
2. Does wind affect true airspeed?
3. Does Mach number increase with temperature?
4. What is true indicated airspeed?
5. How do airplanes calculate speed?
6. What is airspeed velocity?
7. How does density altitude affect true airspeed?
8. What is airspeed sensor?
9. Does headwind increase or decrease airspeed?
10. How does Indicated Airspeed work?

Tags

1. #nautical
2. #longitude
3. #meridian
4. #because
5. #miles
6. #global
7. #knots
8. #asking
9. #effectively
10. #system
11. #navigation
12. #instead
13. #ships
14. #kilometers
15. #latitude
16. #measurements
17. #minute
18. #speed
19. #simply
20. #therefore
21. #reason