The Piper Company developed the PA-25 Pawnee after modified
      PA-18s demonstrated the viability of the agricultural market.  Design
      features, including the elevated cockpit, were intended to reduce the
      likelihood of an accident and increase the chance of surviving a low-speed
      crash.
      The Pawnee first flew in 1957.  When production ended in 1982
      about 5,000 had been built.