Capt Fathom said: I'd like to know more about the STOL equipped 73!
Well here you go Capt Fathom:
A short-field design package is available for the 737-600, -700 and -800, allowing operators to fly increased payload to and from airports with runways under 5,000 feet (1,500 m). The package consists of sealed
leading edge slats (improved lift), a two-position tail skid (enabling reduced approach speeds) and increased flight spoiler deflection on the ground. These improvements are standard on the 737-900ER.