Propeller Calc 4+

Name: Propeller Calc
Rating: 3 (1 reviews)
Author: Frode Rørvik

Frode Rørvik

Разработано для iPad

- 3,0 • 1 оценка

- Бесплатно

Описание

This calculator can determine pitch, gear ratio, RPM, propeller slip and speed parameters. Enter any four variables, and it will calculate the fifth. Use the toggle switch to choose which field to calculate.

Pitch is the theoretical forward movement for one complete turn of the propeller. Every inch of the boat in contact with the water induces drag. Therefore, the distance travelled differs since the propeller is "slipping" behind the theoretical distance it should travel with each rotation. The difference between theory and reality is called slip.

Depending on your application, slip typically ranges between 5% and 20%. A lower number is only sometimes what you are after. Slip of a prop changes with operating conditions and is not a direct measure of efficiency. Please consult professionals for guidance.

Happy powerboating

18 мар. 2024 г.

Версия 3.1

The UI is tweaked to enhance usability. Speed can now be changed using a stepper or a slider control.

3,0 из 5

1 оценка

Great App even for RC Boats

I use this App for assistance with prop selection on my RC Nito Boats. Use ratio 1 (1:1) and the rest is simple. It works well for full size boats too.

Разработчик Frode Rørvik указал, что в соответствии с политикой конфиденциальности приложения данные могут обрабатываться так, как описано ниже. Подробные сведения доступны в политике конфиденциальности разработчика.