Model of a Four-Blade Propeller, Model of an ordinary four-blade propeller in a frame on a floorboard. The blades are flat. The screw can be turned with a crank. The model has a pitch of 216 mm, a diameter of 173 mm, the hub is 40 mm long and has a diameter of 25 mm. 1:10 scale (derived)., Petrus van der Loo, The Hague, 1847, wood (plant material), h 22.5 cm × w 13.5 cm × d 20.5 cm
Keywords:
Model, Four-Blade Propeller, ordinary four-blade propeller, frame, floorboard, blades, flat, screw, turned, crank, model, pitch, 216 mm, diameter, 173 mm, hub, 40 mm long, 25 mm, 1, 10 scale, derived, Petrus van der Loo, Hague, 1847, wood, plant material
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