- Documenting the evolution of the Woodward governor control system.
- A SG type governor from patent number 2,452,088, circa 1943.
- A Waukeska Natural Gas Generator set with a Woodward fuel control system.
- A Waukeska Natural Gas Generator set with a Woodward fuel control system.
- The Legacy Woodward SG Governor system.
- SG type governor patent. 2.
- Brad's Woodward PS type governor added to the oldWoodward collection.
- SG type governor patent.
- PS type governor patent. 5 C
- The Legacy Woodward SG Governor system.
- SG GOVERNOR. 4
- Governor outline, circa 1942.
- An SG governor history project.
- Description of operation.
- Looking inside the governor.