- A Woodward Prime Mover Control History Project.
- 8.
- 7.
- A Woodward PID electric hydraulic cabinet actuator governor system.
- A first generation hydraulic HR (horizontal relay valve) governor still in operation.
- 6.
- 5
- 4
- 3
- Close-up of a circuit board electronic component.
- 2
- PRIME MOVER CONTROL MAY 1984.
- Researching and documenting the evolution of the Woodward Governor Company.
- Page 10.
- Page 9.