In a place where aircraft once waited for war, Peloton bikes and barbells now sit in their place. Nestled in Highland Park, The Hangar, an aircraft hangar-turned-gym, takes exercise to new heights.

Jack Hinkes “didn’t really get” the aviation industry when he was younger. “When I was a kid, I thought, ‘Airplanes are expensive. This is unattainable. I can’t do this, so I’m not going to be ...