- Inspecting a group of Hamilton Standard Model A airplane controls ready for shipment.
- Recollections of Elmer Woodward.
- Dear Gang, circa 1959.
- Documenting aircraft engine governor history one page at a time.
- PAGE 8.
- PAGE 7.
- PAGE 6.
- PAGE 5.
- HYDROMATIC PROPELLER DEVELOPMENT HISTORY. PAGE 4.
- HYDROMATIC PROPELLER DEVELOPMENT HISTORY. PAGE 3.
- HYDROMATIC PROPELLER DEVELOPMENT HISTORY. PAGE 2.
- HYDROMATIC PROPELLER DEVELOPMENT HISTORY.
- HYDROMATIC PROPELLER DEVELOPMENT HISTORY.