A simple question...

[HepburnUA]

because I never can remember. What is the rule for even or odd Flight levels in respect to heading? I never can remember

Jeff

[TerryinABQ]

East is least (odd 0-179 degrees) and west is best (even 180-360 degrees). That is up to FL290. Then there is a 4,000 separation i.e. FL310, FL350, FL390, and FL430 for the west bounds and FL330, FL370, FL410 and FL450 for the east bounds.

Now there is a fairly new program called RVSM (Reduced Vertical Separation ) which requires the aircraft's pitot static and altimeters to be calibrated and within a much smaller tollerance. Then instead of 2,000 feet between aircraft cruising altitudes, you can be only 1,000 feet between thus opening up more airspace in a given track or airway.

Terry

[skytrek]

Its an EVEN bet that the WEST is at ODDS with the EAST.




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