Engine Pobjoy Niagra Hp

Pitcairn AC-35 with one targe propeller replacing two smaller contrarotating ones and stationary vanes behind the propellers.

(Pitcairn Photo)

Rotorhead Pitcairn

® ROTOR BLADE (FOLDS FOE ROAD USE) ® ROTOR HEAD ® ROTOR STARTER DRIVE SHAFT ® LINKAGE FOR'DIRECT CONTROL" ROTOR TILTING ®GfLIP THROTTLE ON STICK

© GEAR BOX WITH PROPELLER CLUTCH, ROTOR STARTER. CLUTCH, PROPELLER GEARS @ TWIN PROPELLERS (OPPOSITE ROTATION)

® STEERABLE KNEE ACTION FRONT WHEELS © DRIVE SHAFT TO PROPELLER. GEAR. BOX ® ENGINE COOLING FLYWHEEL FAN @ CLUTCH FOR ROAD DRIVE @ DRIVESHAFT TO SINGLE REAR WHEEL ® FRTF WHEELING GEAR FOR ROAD DRIVE ® BOXLIKE FIXED TAIL STRUCTURE @ MOTOR IN REAR IMPROVES VISIBILITY

Pitcairn AC-35 drive and control diagram. Note two contrarotating propellers. The dual propeller feature was abandoned in favor of a larger single propeller because a report says, "Propellers set up a howl that would shatter glass." (Pitcairn Photo)

Autogiro Gyroplane

Skyway Engineering version (in the late '50s) of Pitcairn's AC-35. Probably only the rotor system of the original AC-35 was retained.

Homemade New Model Gyrocopter Diagram
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