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» Online Classroom   » Inland and Coastal Navigation   » Public Discussion of Inland and Coastal Navigation   » 18465 TR Width Dimension

Author Topic: 18465 TR Width Dimension csmith posted April 30, 2026 07:58 PM                   My first instinct was to count the minutes across the bottom of the chart. This totaled 75 minutes which would equal 75 nmi. However, the answer was not 75 nmi it is by measuring nmi from the scale as you would on the latitude. Why show the minutes on the longitude but you cannot use that as measurement? How does a minute equal a nautical mile if in fact it doesn't measure that way? David Burch posted May 01, 2026 07:52 AM                   Moving post to the Student Discussion Forum. From: Starpath, Seattle, WA

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