The Cessna 172 is the airplane that first comes to mind when people think of general aviation. Almost every pilot has flown one of these at one time during his or her flying career. This 4 seater is simple and straightforward to operate. It won't break any speed or altitude records, but it won't usually break the bank either. This plane falls into the 4 seat, 130 mph cruise category -- but don't try to fill both the tanks and the seats before you leave a Colorado airport in summer.