To limit the adverse effect of the fluid pressure field in high-speed gearing systems. especially for the main reducer of helicopters. shrouds usually adopted to enclose and approaches the high-speed gears will play a vital role in the windage and pumping power losses in axial and radial directions. To better explore and predict the total load-independent losses. https://www.bekindtopets.com/special-pick-Grandpa-s-Best-Prairie-Hay-quick-pick/