Formed 1961 by B.J. Schramm at Tempe, AZ (see Schramm) to produce improved helicopter named Scorpion Too. Subsequently moved to Chandler, AZ, and added RW145 engine of 150-hp. By 1980 had produced completely new Exec helicopter. In 1990 moved to 300 S 25th Ave, Phoenix, going into liquidation, see RotorWay International.