Propeller Calc 4+
Frode Rørvik
专为 iPad 设计
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- 免费
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简介
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
新内容
版本 3.1
The UI is tweaked to enhance usability. Speed can now be changed using a stepper or a slider control.
App 隐私
开发者“Frode Rørvik”已表明该 App 的隐私规范可能包括了下述的数据处理方式。有关更多信息,请参阅开发者隐私政策。
未收集数据
开发者不会从此 App 中收集任何数据。
隐私处理规范可能基于你使用的功能或你的年龄等因素而有所不同。了解更多
信息
- 提供者
- Frode Rorvik
- 大小
- 594.9 KB
- 类別
- 工具
- 兼容性
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- iPhone
- 设备需装有 iOS 17.0 或更高版本。
- iPad
- 设备需装有 iPadOS 17.0 或更高版本。
- Mac
- 需要 macOS 14.0 或更高版本以及装有 Apple M1 或更高版本芯片的 Mac。
- Apple Vision
- 设备需装有 visionOS 1.0 或更高版本。
- 语言
-
英语
- 年龄分级
- 4+
- Copyright
- © Frode Rørvik
- 价格
- 免费