Tests of propellers for Alvin side propulsion units

Sharp, Arnold G.; Sullivan, James R.

Tests of propellers for Alvin side propulsion units

1967

Sharp, Arnold G. | Sullivan, James R.

Full scale dynamometer tests were run on a series ofunshrouded propellers in the range of propeller diameters consideredpractical for use on the side propulsion units of theresearch submarine ALVIN. Measurements taken included staticthrust, torque, and RPM for various values of hydraulic powerinput to the driving motor.In other tests, propellers having 14 inch diameter and20 inch pitch (the present ALVIN configuration) were comparedfor static thrust as follows: conventional blade shape, unshrouded;conventional blade shape in ALVIN flow-acceleratingnozzle unit; square-ended blades in ALVIN nozzle unit.Recommendations are given concerning the proposed newALVIN side propulsion units.

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