[Proj] Terminology: what should I call 60 nautical miles?
Christopher Barker
Chris.Barker at noaa.gov
Mon Apr 27 11:28:48 EST 2009
Gerald I. Evenden wrote:
> Its purpose was probably for the navigator to always
> have a handy scale at the left or right edge of the chart for measuring
> his/her course.
>
> For some unknown reason it is still used by sea/air navigators. Must be
> retained as a link to the romantic history of travel. Certainly has no other
> legitimate usage.
I use it all the time: is that "handy scale at the left or right edge of
the chart" no longer a legitimate usage?
It's certainly more useful that the statute mile!
I agree that there really is no need for a special name for 60nm -- If I
want nm, I use nm, if I want degrees of latitude, I use degrees of latitude.
Having said that, I do have an entry in my personal unit converter for
degrees of latitude as a distance (defined, for that purpose as 60nm)
;-)
-Chris
--
Christopher Barker, Ph.D.
Oceanographer
Emergency Response Division
NOAA/NOS/OR&R (206) 526-6959 voice
7600 Sand Point Way NE (206) 526-6329 fax
Seattle, WA 98115 (206) 526-6317 main reception
Chris.Barker at noaa.gov
More information about the Proj
mailing list