- Woodward Airplane Engine Governors.
- The DC-3 Aircraft. All the Pratt & Whitney engines were exclusively equipped with Elmer Woodward's propeller governor.
- The DC-3 Aircraft. All the Pratt & Whitney engines were exclusively equipped with Elmer Woodward's propeller governor.
- The DC-3 Aircraft. All the Pratt & Whitney engines were exclusively equipped with Elmer Woodward's propeller governor.
- The DC-3 Aircraft. All the Pratt & Whitney engines were exclusively equipped with Elmer Woodward's propeller governor.
- The DC-3 Aircraft. All the Pratt & Whitney engines were exclusively equipped with Elmer Woodward's propeller governor.
- The DC-3 Aircraft.
- Brad found the first Hamilton Standard Propeller advertisement with the Woodward governor application.
- An original 1938 Hamilton Standard manual with the Woodward Governor Company's governor application.
- An original 1938 Hamilton Standard manual with the Woodward Governor Company's governor application.
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