Question about Planting Fruit Trees

Hello everyone, I hope all’s well. I have a couple questions about planning an orchard.

1) If there is a cleared rectangular field that is correctly oriented on a map, taller trees ought to be planted on the north, right?

2) If rows of trees ran north to south, would it be better to plant taller trees on the western rows to block the afternoon sun, or is it better to plant taller trees on the east so the smaller trees can get the extra afternoon sun?

Thank you for your input!