






The most direct route is not necessarily the shortest. I don't know if the plotter in FS uses this concept.
"In theory, there is no difference between theory and practice. But, in practice, there is."



commoner
"In theory, there is no difference between theory and practice. But, in practice, there is."

It is a well known that the shortest distance between two points is a straight line. However anyone attempting to fly from Los Angeles to New York on the straight line connecting them would have to dig a very substantial tunnel first. The shortest distance, following the earth's surface lies vertically above the aforementioned straight line route. This route can be constructed by slicing the earth in half with an imaginary plane through LAX and JFK. This plane cuts the (assumed spherical) earth in a circular arc connecting the two points, called a great circle. Only planes through the center of the earth give rise to great circles. Any plane will cut a sphere in a circle, but the resulting little circles are not the shortest distance between the points they connect. A little thought will show that lines of longitude (meridians) are great circles, but lines of latitude, with the exception of the equator, are not.
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...mmm...I THINK you mean that the Earth will have turned on it's axis by the time you have flown for say 10 hours eh?..........Still like the tunnel idea for travelling to antipodean destinations ......at least that would be still in the same place....wouldn't it?...... :-/....commoner

Doug...!
I read that from the beginning to the end...
...then, from the end back to the beginning...
And I came to the conclusion that the answer's....
A Lemon.



...mmm...I THINK you mean that the Earth will have turned on it's axis by the time you have flown for say 10 hours eh?..........Still like the tunnel idea for travelling to antipodean destinations ......at least that would be still in the same place....wouldn't it?...... :-/....commoner

....MY guess is that it is flying forwards/backwards/sideways as neccessary to keep the same spot underneath it as the earth spins......that right or not?...commoner ;)
"In theory, there is no difference between theory and practice. But, in practice, there is."

.....how would a helicopter hover!?
John
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how would a helicopter hover!?



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