Cessna Model 150 and F150 Series aircraft, description in this manual, are high wing monoplanes of all-metal, semimonocque construction. These aircraft are equipped with a fixed tricycle landing gear. Through 1970 Models, they are quipped with flat spring-steel main landing gear struts and a steerable nose gear. Beginning with 1971 Models, these aircraft are equipped with tubular spring-steel main gear struts and a steerable nose gear. The steerable nose gear is equipped with an air/hydraulic fluid shut. Two-place seating is standard, and double-width, fold-up auxiliary rear seat may be installed as optional equipment. Each Model 150 and F150 series aircraft is equipped with a four-cylinder, horizontally opposed, air cooled continental or Rolls Royce engine, driving an all-metal, fixed-pitch propeller. These aircraft feature a “”wrap around” rear window and a swept-back fin and rudder.