Ship
Content
Foreword
The purpose of this information is to provide installers, designers or users with a simple and effective help in choosing the right propeller for a given combination of hull, engine and reverse gear and for certain operating conditions and speed range. When calculating boat speed and choice of propeller there are many factors to be considered, from the theoretical to the very practical. There is no known formula that will automatically give the correct answer. A number of general rules, theories and formulas are used for these calculations, all of which are more or less exact. Variations in hull shape, displacement, restriction of the water flow to the propeller and the propeller manufacturing tolerances are some of the factors influencing the result. The only true test is the result obtained during sea trials. Adjustments, especially in the propeller size, may be necessary. The responsibility for the design, construction and fitting of the propeller arrangement lies with the company carrying out the installation. We emphasize that our information is only for guidance and that, when used correctly gives a good general view for the choice of a suitable combination of engine, transmission, and propeller size. The final choice should be made in consultation with a propeller designer or in co-operation with Volvo Penta. AB VOLVO PENTA
© All rights reserved. AB VOLVO PENTA
The purpose of this information is to provide installers, designers or users with a simple and effective help in choosing the right propeller for a given combination of hull, engine and reverse gear and for certain operating conditions and speed range. When calculating boat speed and choice of propeller there are many factors to be considered, from the theoretical to the very practical. There is no known formula that will automatically give the correct answer. A number of general rules, theories and formulas are used for these calculations, all of which are more or less exact. Variations in hull shape, displacement, restriction of the water flow to the propeller and the propeller manufacturing tolerances are some of the factors influencing the result. The only true test is the result obtained during sea trials. Adjustments, especially in the propeller size, may be necessary. The responsibility for the design, construction and fitting of the propeller arrangement lies with the company carrying out the installation. We emphasize that our information is only for guidance and that, when used correctly gives a good general view for the choice of a suitable combination of engine, transmission, and propeller size. The final choice should be made in consultation with a propeller designer or in co-operation with Volvo Penta. AB VOLVO PENTA
© All rights reserved. AB VOLVO PENTA
