screw propeller


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screw propeller

[′skrü prə‚pel·ər]
(mechanical engineering)
A marine and airplane propeller consisting of a streamlined hub attached outboard to a rotating engine shaft on which are mounted two to six blades; the blades form helicoidal surfaces in such a way as to advance along the axis about which they revolve.
References in periodicals archive ?
Additional force created by the screw propeller can be calculated as follows:
It can't turn as fast or deftly as a seal, but it is more maneuverable than vehicles such as REMUS, which use conventional screw propellers for propulsion.
The advantage of using the NeuroSolutions NN to predict the optimum ship screw propeller is the processing speed, once the database requested for training is prepared.
Propulsion will be via standard propeller shafts and screw propellers driven by marine diesel inboard engines (Diesel Hybrid systems will be considered) such as those manufactured by John Deere, Volvo or Scania (or equivalent).
Universal rescue vehicle (URV) is a passenger all-terrain vehicle of amphibious type, which is provided with four screw propellers, two on each side of the vehicle (Fig.
Although the most well-known illustration of the Turtle shows screw propellers, this is historically inaccurate they more resembled two-armed windmills.