Quantcast Measuring Distances

 

Click here to make tpub.com your Home Page

Page Title: Measuring Distances
Back | Up | Next

Click here for thousands of PDF manuals

Google


Web
www.tpub.com

Home

   
Information Categories
.... Administration
Advancement
Aerographer
Automotive
Aviation
Construction
Diving
Draftsman
Engineering
Electronics
Food and Cooking
Logistics
Math
Medical
Music
Nuclear Fundamentals
Photography
Religion
   
   

 



Figure 4.2-21 Plotting North/South Direction
Measuring Distances
In navigation, the standard for distance measurement is the nautical mile. On Lambert
conformal projections one nautical mile equals one minute of arc measured along any
great circle. All lines of longitude (meridians) are great circles; therefore, one-degree (60
minutes) measured along a meridian equals 60 nautical miles. It is important to understand
that this is NOT a degree of longitude, but actually a degree of latitude. Degrees of latitude
are marked on the longitude lines. Never measure distance along a parallel. On Lambert
Conformal charts a course line is a segment of a great circle. To find the distance of the
course, compare it's length to an equal length of another great circle (any meridian).
(Figure 4.2-22)
4.6-41


Privacy Statement - Press Release - Copyright Information. - Contact Us

Integrated Publishing, Inc.