- Elmer Woodward's smallest governor for aircraft engines
- ESSENTIAL PART DIFFERENCES FOR AIRPLANE PROPELLER ENGINE GOVERNORS.
- ESSENTIAL PART DIFFERENCES FOR AIRPLANE PROPELLER ENGINE GOVERNORS. 2.
- First buy the governor operating manual, then buy the real thing!
- From the archives.
- FUELING INNOVATION.
- GENERAL INFORMATION.
- Governor with electric type head control.
- Hamilton Standard constand speed control
- Hamilton Standard history.
- Hamilton Standard propeller governor patent name plate on the type 1P12-A control
- Hamilton Standard type 1P12-A governor
- HAMILTON STANDARD TYPE 1P12-A MADE BY WOODWARD
- History in the making!
- HYDROMATIC PROPELLER DEVELOPMENT HISTORY.