On Friday, November 17, 2017 at 5:43:50 PM UTC+3, wrote:
Half the population of the USA is within a 500 mile circle around Ridge Soaring Gliderport.

That's an astounding statistic, especially considering how much of that circle lies in the Atlantic Ocean. Chicago is an easy walk outside that circle, and Nashville and Atlanta maybe 50 miles.

It might well be that near half the population of Canada is in that circle too! Quebec is 25 miles outside it, but Montreal, Ottawa, Toronto, Hamilton are well inside.