![drag - At what rpm does the tip of a 54" propeller start to incur mach losses? - Aviation Stack Exchange drag - At what rpm does the tip of a 54" propeller start to incur mach losses? - Aviation Stack Exchange](https://i.stack.imgur.com/0cdls.jpg)
drag - At what rpm does the tip of a 54" propeller start to incur mach losses? - Aviation Stack Exchange
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. -
![SOLVED: T 5 The tip speed ratio of turbine is the ratio R where T is the speed of the tip W dR of the blade and W is the speed of SOLVED: T 5 The tip speed ratio of turbine is the ratio R where T is the speed of the tip W dR of the blade and W is the speed of](https://cdn.numerade.com/ask_previews/f1fe569a-3455-43b5-a4c7-0c42548d9109_large.jpg)