Tom Fleischman wrote:

What makes you think you can't watch the landscape from a low wing
aircraft?

The short answer is empirical evidence.

"Wing Leader", by J.E. Johnson, contains an excellent description of the amount
of England that is blocked by the wing of a Spitfire at patrol altitude. From
personal experience, I know that I can't see anything close to what's under me
when flying in an Archer and I know that I have no such problem in my Maule.

George Patterson
Great discoveries are not announced with "Eureka!". What's usually said is
"Hummmmm... That's interesting...."