Design study for outboard propeller with spoiler |
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| Authors: | Robert Latorre M Mizina |
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| Institution: | a Naval Architecture and Marine Engineering, 911 Engineering Building, University of New Orleans, New Orleans, LA 70148, USA;b Neva-Prop Ltd, 15 Lakhtinskaya Street, 197136 St Petersburg, Russia |
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| Abstract: | With a large number of recreational craft there is an interest in the development of efficient, high thrust outboard propellers. There has been some success with ‘cupped' propellers with a bent trailing edge. Along the same lines is a simpler idea of attaching a raised bar called an ‘Interceptor' or ‘Spoiler' on the propeller blade trailing edge. For the small diameter propeller, this simplifies the design to adjusting the height of the bar. This paper presents a three-part design study which examines the range of available outboard propellers, the optimum size of outboard propellers, and the capability of predicting the influence of the spoiler on the outboard propeller performance. The results indicate the feasibility of the outboard propeller with spoiler. |
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| Keywords: | Propellers Water craft Cavitation Outboard motor propellers Cupped propellers Spoilers |
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