America by Air: What a Former Flight Instructor Misses
In response to a new pilot’s note about what he enjoyed in the aerial view, a reader who has worked as a flight instructor describes what he misses about that time in his life:
Thanks for your occasional odes to flying. I haven’t flown for years—for lack of $$, not for lack of desire. Some of the things I never tired of:
Flying west: over Ohio, an altitude of 3,500 was just beyond the ability to detect human forms on the ground below. And it fascinated me that if I held that altitude, I would crash somewhere just west of Colby, KS. [JF note: In case it’s not obvious, this is because the ground level goes steadily up as you head west. Between the Appalachians and the Atlantic, the ground level is generally less than 1000 feet above sea level. It’s the same through Ohio and Indiana and across the Mississippi River. But then it starts going up, and has reached 3,500 feet in Kansas. An airplane’s flight altitude is measured in elevation above sea level, not above the ground.]