[1] In 1968, the company's estimated business brought in over $1.5 million and its plant space was 25,000 square feet.
The company was founded by Frank Hrubetz, a 1930 graduate of Oregon State College with a degree in mechanical engineering.
Hrubetz worked for the Eyerly Aircraft Company which developed a 10-foot airplane on a fixed base for training pilots.
The company discovered it was more profitable as entertainment after one buyer placed the trainer on the corner of Hollywood and Vine in Los Angeles as an amusement ride.
While working for Lee Eyerly, Hrubetz helped develop other rides including the Loop-O-Plane and later Roll-O-Plane—two small bullet-shaped cars that spun rapidly on a vertical axis.