At a groundspeed of 480, how many nautical miles per minute are you traveling?

At a groundspeed of 480, how many nautical miles per minute are you traveling?

• A. 6 nm/min
• B. 8 nm/min
• C. 10 nm/min
• D. 12 nm/min

Answer: (B)

Knots are nautical miles per hour, so to get nautical miles per minute you divide by 60 (the number of minutes in an hour). 480 nautical miles per hour ÷ 60 minutes = 8 nautical miles per minute. So you’re traveling 8 nm per minute. The other numbers would imply different hourly totals (e.g., 6 nm/min equals 360 nm/hour, 10 nm/min equals 600 nm/hour, etc.), which doesn’t match a groundspeed of 480.

Knots are nautical miles per hour, so to get nautical miles per minute you divide by 60 (the number of minutes in an hour).

480 nautical miles per hour ÷ 60 minutes = 8 nautical miles per minute.

So you’re traveling 8 nm per minute. The other numbers would imply different hourly totals (e.g., 6 nm/min equals 360 nm/hour, 10 nm/min equals 600 nm/hour, etc.), which doesn’t match a groundspeed of 480.