- Elmer E. Woodward's little three pound aeroplane propeller governor patent from 1934.
- WOODWARD HYDRAULIC GOVERNORS FOR ALL PRIME MOVERS.
- Elmer E. Woodward signs a massive governor manufacturing contract with the Hamilton Standard Company.
- From the archives.
- A Woodward worker testing hundreds of propeller governors in the 1950's.
- GOVERNOR CONTROL MECHANISM PATENT NUMBER 2,527,867.
- A vintage Elmer Woodward governor control mechanism in Irl Martin's office.
- GOVERNOR CONTROL MECHANISM PATENT NUMBER 2,527,867.
- GOVERNOR CONTROL MECHANISM PATENT NUMBER 2,527,867.
- GOVERNOR CONTROL MECHANISM PATENT NUMBER 2,527,867.
- GOVERNOR CONTROL MECHANISM PATENT NUMBER 2,527,867.
- GOVERNOR CONTROL MECHANISM PATENT NUMBER 2,527,867.
- GOVERNOR CONTROL MECHANISM PATENT NUMBER 2,527,867.
- GOVERNOR CONTROL MECHANISM PATENT NUMBER 2,527,867.
- GOVERNOR CONTROL MECHANISM PATENT NUMBER 2,527,867.