Matt Whiting wrote:

I don't as he basically excluded the terrain which is the most
signficant determination of the ease and effectiveness of pilotage.

No, he didn't. He simply said that dead reckoning is a good way to keep from
confusing one landmark with a similar one. That's "terrain." I can certainly
identify with his statement, having mistaken one bridge for another after flying
for an hour over a particularly featureless section of Maryland.

George Patterson
Why do men's hearts beat faster, knees get weak, throats become dry,
and they think irrationally when a woman wears leather clothing?
Because she smells like a new truck.