Click to open image viewer. The Wright brothers designed and constructed the world's first practical fixed-pitch propeller and developed the aerodynamic theory to calculate its performance during the ...

Controllable pitch propellers adjust blade angle instead of engine speed, letting ships change thrust, direction, and handling instantly. This explains the physics, advantages, and tradeoffs compared ...

Until recently Hamilton has had a virtual monopoly of the propeller business. Lately, however, it and its most formidable rival, famed old Curtiss-Wright Corp., have been seeking another ...

Having received permission from Austrian authorities to begin outdoor flight testing on its remarkable CycloRotor-propelled technology demonstrator, CycloTech has announced noise testing results for ...