Timex Watch (T2P277) T2P277 Scheda Tecnica

The following examples serve as a guide of how to use 

the slide rule.

Known Factors: Distance: 10 nautical miles Time: 

15 minutes
•  Align “10” arrow on the outer ring with “15” on the

inner ring.

•  The speed required can be found directly above the

“MPH” marking on the inner ring

Known Factors: Speed: 40 miles per hour Distance: 

10 nautical miles
•  Align “40” on the outer ring with the mark “MPH”

marking on the inner ring.

•  The time required can be found directly below the “10”

arrow on the outer ring, which is “15” on the inner ring.

15 minutes?
Known Factors: Speed: 40 nautical miles per hour Time: 

15 minutes
•  Align “40” on the outer ring directly above the mark

“MPH” on the inner ring.