On Saturday, August 15, starting at 8:30 a.m., aviation enthusiasts will mark 85 years to the day since Will Rogers and Wiley Post died in an Alaska plane crash. To honor their memory, pilots of small planes will land on a 2,000-foot grass strip at the Will Rogers Birthplace Ranch, adjacent to the house where Rogers was born in 1879. The fly-in is an opportunity for the public to get an up-close look at vintage and late-model small aircraft and…