is that from a video or something ? i feel like ive heard the phrase before <| sep |> Cert Juggler Orange Lightning plus 20 c 3 and type s cert <| sep |> A rotor that spins slower at the same diameter , aka less tip speed . Blackhawk is low 700 s ftsec , original Huey was almost 900 ftsec which is part of why it ' s so loud . Comparing RPMs of rotors of different diameters makes no sense , and there are plenty of high rpm , small rotors that have lower tip speeds R 22 is quite a bit lower tip speed than a Blackhawk for instance . That being said I think you generally hit an engine limit or a gearbox limit or a control volume limit first , for most rotorcraft . <| sep |> Go talk to a Hufflepuffle for the dankest stuff . Here in Ravenclaw , its Adderall all the time