Public domain

Model of a Two-Blade Parabolic Propeller

Petrus van der Loo · c. 1847 · wood (plant material)

From the collection of Rijksmuseum, Amsterdam. Free to download, adapt and use — no permission needed.

About this work

Model of a two-bladed parabolic screw in a frame on a baseboard. The pressure surface of the screw blades is curved in the shape of a parabola. The screw can be rotated with a small crank. The model has a pitch of 286 mm, a diameter of 200 mm, the hub is 75 mm long and has a diameter of 26 mm. Scale 1:10 (derived).

Rijksmuseum, Amsterdam’s own description

Subjects

instruction model

Credit lineModel of a Two-Blade Parabolic Propeller. c. 1847. Petrus van der Loo. Rijksmuseum, Amsterdam. Public domain.

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