Cessna 188 AgwagonCessna 188 airplane model. The Cessna 188 Agwagon stands out as Cessnas only aircraft specifically designed for agricultural use. Developed in the early 1960s after thorough research and input from ag operators, it features a distinctive braced low wing and a single seat cockpit tailored for pilots. Its fiberglass chemical hopper and sealed semi monocoque rear fuselage protect against chemical damage, making it a reliable and efficient choice for