In 1972, founders Karl Bacon and Ed Morgan decided to retire and sold Arrow Development to the Rio Grande Railroad. At the time Penn Central owned Six Flags and Rio Grande had plans to build several theme parks of their own in addition to owning a coaster-building company. After almost a decade of ownership Rio Grande sold Arrow in 1981 to the German manufacturing firm, Huss Maschinenfabrik, which merged with Arrow Development to form Arrow-Huss. Dana Morgan (Ed Morgan's son) was appointed president and Ron Toomer was made vice president and manager of engineering. Although the Arrow coasters continued to sell well, Huss got into financial trouble partially due to heavily investing in Darien Lake theme park in New York and the 1984 Louisiana World Exposition in New Orleans. Arrow Huss filed for bankruptcy protection in 1985, and 13 of the company's American officers negotiated a buyout. In 1986 the takeover was approved by the courts and the company re-emerged as Arrow Dynamics. Ron Toomer served as President until 1993, then Chairman of the Board until 1995, then as a consultant director until his retirement in 1998.