Feasibility of a Novel Electric Power Propulsion System (NEPPS) for a Submarine. Volume 3, Hydrodynamic Model Tests
Abstract
This report describes the results of tests of a 1/28 scale model of a Novel Electric Power Propulsion System (NEPPS) and prediction of prototype performance. Analysis of the test results leads to the following conclusions: (1) comparison of model cavitation data indicates that the cavitation performance of the NEPPS propeller is better than that of the conventional propeller; (2) torque measurements over a wide range of operating conditions indicate that propeller torque does not exceed the values originally assumed in the design of the electrical machinery; (3) tests made at zero advance speed both for forward and reverse propulsor rotation indicates very good reverse thrust characteristics, the reverse thrust being 78% of the forward thrust; (4) the propulsive efficiency, based on the power at the blades of the model, is 90%; (5) self-propulsion was achieved at an advance ratio of 1.134; and (6) the NEPPS prototype submarine will attain a speed of approximately 24 knots.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 31, 1963
- Accession Number
- AD0342463
Entities
People
- A. J. Izzo
Organizations
- General Dynamics