- Woodward... At the Heart of the System Since 1870.
- Woodward Governor Company's size D governor serial number 4424
- Woodward Governor Company catalog, circa 1916.
- Woodward Governor Company blue print drawing from 1922.
- Woodward factory photo of their new compensating type water wheel governor
- Woodward advertisement for the TPE331 jet engine.
- Vertical Model Compensating Type Water Wheel Governor Size D No 1281
- Schematic drawing of the Woodward size D water Wheel Governor.
- Patent 2,341,384. Sheet 2 of 3.
- Patent 2,341,384. Page 3of 3.
- Patent 2,341,384
- Parts list for the size D Water Wheel Governor drawing.
- Page 5.
- Page 4.
- Page 3.