T&T: US Charts and Metric Measurements

[Truelove39@aol.com]

Whereas depths and heights on US charts may be expressed in  meters in the 
future, I doubt you'll see anything other than inland charts omit  distance 
scales in nautical miles. No other scale makes sense for  navigation, since time 
zones, lat/lon, speed (knots) etc. are based upon  the Earth's diameter, 
expressed in nautical miles. 
 
Regards,
 
John
"Seahorse"

>>Just before going on a little cruise earler this week, I read  the post 
about
the US Corps of Engineers and its metric chart. While on the  boat, I was
reading a 2004 Waggoner Guide on cruising the West Coast, and in  it was the
statement that "all USA navigation charts are to be converted to  and issued 
in
metric measurement..."