Woodward propeller governor schematic drawing of a turbo-prop air-bleed governor.
Woodward operation manual 33048 overspeed governor.
Woodward propeller governor component maintenance manual 33163 for the 
Woodward oil pressure relay valve type HR 2500 turbine water wheel governor installation, circa 1917.
PMC blueprint history.
PMC blueprint history.
PMC blueprint history.
PMC blueprint history.
PMC blueprint history.
PMC blueprint history.
PMC blueprint history.
Oldwoodward.com blueprint history.
PMC blueprint history.
PMC blueprint history.
PMC blueprint history.