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In marine propulsion, a variable-pitch propeller is a type of propeller with blades that can be rotated around their long axis to change the blade pitch. Reversible propellers—those where the pitch can be set to negative values—can also create reverse thrust for braking or going backwards without the need to change the direction of shaft revolution.
Dowty Rotol R391 six-blade composite controllable- and reversible-pitch propeller of a C-130J Super Hercules. In aeronautics, a variable-pitch propeller is a type of propeller (airscrew) with blades that can be rotated around their long axis to change the blade pitch.
The Voith Schneider propeller was originally a design for a hydro-electric turbine. [2] Its Austrian inventor, Ernst Schneider, had a chance meeting on a train with a manager at Voith's subsidiary St. Pölten works; this led to the turbine being investigated by Voith's engineers, who discovered that although it was no more efficient than other water turbines, Schneider's design worked well as ...
The most predictable byproduct of tripling the College Football Playoff from four to 12 teams was that whining would become a varsity sport on its own.. First up was the ACC’s commissioner, Jim ...
Insurers beef up security after UnitedHealthcare CEO killing. Some companies are reevaluating their security measures in the wake of Thompson's shooting. A number of companies have scrubbed their ...
An early variant of the Pansarbandvagn 302. The Pbv 302 has wide tracks and a high power-to-weight ratio. It has exceptionally good off-road mobility, and the low ground pressure enables it to operate over summer bog and winter snow. It is powered by a Volvo 10-liter, 270 hp diesel engine.
Social Security is projected to run out of funds in 2035 unless there is a change made to the fund's cost and revenue system.
Blade pitch control is a feature of nearly all large modern horizontal-axis wind turbines.It is used to adjust the rotation speed and the generated power. While operating, a wind turbine's control system adjusts the blade pitch to keep the rotor speed within operating limits as the wind speed changes.