Arlington Municipal Airport has a steady stream of light aircraft activity, but it is also home to a gliding community.  At weekends, it is not unusual to see some Piper Pawnees tugging gliders into the air.  Depending on the suitability of the conditions, these might be some pretty short flights, or they might be up for quite a while.  I have been up there at various times when the gliders are operating off the grass next to the main runway.  Usually, I am there for something else, so the gliding photos are taken when the opportunity arises.  Here are some shots of the Pawnee tug planes and the gliders themselves.