The Schweizer 2-33 was designed to succeed the 2-22 as something a little more plush and with better performance, thereby making it easier to attract new students into soaring. The prototype Schweizer 2-33 first flew in 1965 and volume production began in 1967. For the best part of the following 29 years, Schweizer 2-33’s were mainstays in U.S. glider pilot training. It has an all-metal wing structure and steel tube fuselage with moving tail surfaces covered in Ceconite fabric. The spoilers are aerodynamically balanced. The A model, introduced in 1968, has a larger rudder. Subsequent minor changes were made to the controls for the elevator trim system. The Schweizer 2-33 was also offered as an FAA-approved homebuilder’s kit.