You are a South African bush pilot working for Blue Sky Aviation. You fly
in some critical medical supplies, enjoy a quick lunch at the hospital.
It's a stifling 100 degrees in the shade and you're eager to get back up
to the cool, high blue yonder.
On the way back to your plane, you discover that the only bit of shade
within 1 mile has become very popular . . You start calculating the
distance to the plane door and wonder . . .
