- EGB 500 5
- Woodward PGE 300 series governor.
- Woodward PGE 300 series governor test stand data.
- Woodward PGE 300 series governor.
- Woodward PGE 300 series governor.
- Woodward PGE governor.
- Woodward PGE 300 series governor.
- Woodward PGE 300 series governor.
- Woodward PGE 300 series governor.
- Woodward PGE 300 series governor.
- Woodward PGE 300 series governor.
- A vintage steam engine with a large flyball governor for control.