- Documenting the evolution of the Woodward governor.
- Elmer and George looking over several Hamilton Standard aircraft engine governor.
- Two Woodward aircraft engine governors and a Hamilton Standard governor in the middle(made by Woodward).
- Elmer Woodward's first aircraft engine governor patent.
- A page out of an early Woodward governor operating manual.
- Documenting the evolution of the Woodward governor.
- All the pages to this manual are posted on this site.
- Elmer Woodward writes about his type A and type B aircraft engine governor.
- Elmer Woodward writes about his type A and type B aircraft engine governor. Page 2.
- A Hamilton Standard Constant Speed Control Governor in the middle(made by Woodward).
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