“…Coefficient of the force tangential to the rotor plane [-] C M 0 Preload moment coefficient [-] controlled passively. For example, the pioneering work of Cheney and Spierings (1976) inspired technologies that exploited the centrifugal force to pitch the blade and limit the angular velocity (e.g. Chen and Shiah, 2016;Yanagihara et al, 2011).…”