What would a formula look like for calculating the rotor blade tip speed on a helicopter? I.e. a blade on an R44, or a blade on a micro helicopter that's only 360mm. -
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Theoretical and computational investigations of the optimal tip-speed ratio of horizontal-axis wind turbines - ScienceDirect
![What is the relation between pressure difference made by the fan and fan speed (or tip speed)? | ResearchGate What is the relation between pressure difference made by the fan and fan speed (or tip speed)? | ResearchGate](https://www.researchgate.net/profile/Azd-Zayoud/post/What-is-the-relation-between-pressure-difference-made-by-the-fan-and-fan-speed-or-tip-speed/attachment/59d6428779197b807799e38f/AS%3A439276056911872%401481742982002/image/Picture1.jpg)
What is the relation between pressure difference made by the fan and fan speed (or tip speed)? | ResearchGate
![IJTPP | Free Full-Text | Axial Impeller-Only Fans with Optimal Hub-to-Tip Ratio and Blades Adapted for Minimum Exit Loss IJTPP | Free Full-Text | Axial Impeller-Only Fans with Optimal Hub-to-Tip Ratio and Blades Adapted for Minimum Exit Loss](https://pub.mdpi-res.com/ijtpp/ijtpp-08-00007/article_deploy/html/images/ijtpp-08-00007-g003.png?1677737996)