Air Force wrapped what coach Troy Calhoun called its most “physical and productive” spring football session with a scrimmage played in uniquely Colorado fashion.

The morning turned warm and sun-drenched, offering a stark contrast to the mounds of plowed snow just off the Falcon Stadium sidelines. The stands were even off limits because of the snow, leaving the field lined with fans and the throng of high school juniors in town for a recruiting weekend.

As for that “physical and productive” nature of the spring, senior safety Garrett Kauppila’s theory is that the team’s vast experience has helped change the sense of purpose at practice.