"Roy Smith" wrote in message
...
In article ,
(Paul Tomblin) wrote:
snip
You've got to go pretty big distances before GC errors start to become
significant. For example, to go from 38N/77W to 38N/122W (roughly
Washington, DC to San Francisco, CA), the rhumbline is 270 and the GC is
284. 14 degrees on a coast to coast trip. If you're flying it nonstop
in a jet, it makes sense to take that into account. For most of us
flying spam cans, we just can't fly long enough legs for it to become
significant.


And it is all moot anyhow, since you'd be IFR and not using VFR charts...