Model or a Two-Blade Parabolic Propeller. Model of a double-leaf parabolic screw in a frame on a base board. The pressure surface of the screw blades is curved in the form of a parabola. The screw probably does not belong in this frame, where a much larger screw can in. The model has a diameter of 85 mm, the hub has a diameter of 8 mm and is probably too long in relation to the true size to fit into the frame. Scale 1:20 (derived).

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Size: 2500px × 1872px
Photo credit: © BTEU/RKMLGE / Alamy / Afripics
License: Licensed
Model Released: No

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