Odd and even numbers....
IFR when flying a heading from 0º to 179º your selected cruise altitude should be Odd Thousands (33,000, 35,000, etc.) By the same token, headings from 180º to 359º should be Even Thousands for IFR. However, ATC may assign other altitudes at their discretion.
So converging aircraft should not crash into each other.... unless the pilot did go rogue and fly all over the show.... but at that time of night in that area..... Zip, nada......
Terrain masking in a B777...... and no-one heard it or saw it..... the next Tui ad.....![]()
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