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Zdarsky started the company after carving his own propeller for a homebuilt ultralight trike that he flew from Cold War Czechoslovakia, over the Iron Curtain to Vienna in 1984. Ivoprop has sold more than 20,000 propellers since then. [1] [2] The company's propellers are built from carbon-fiber-reinforced polymer and feature a stainless steel ...
Stephens Bros. boat owners meet every year at the Stephens Rendezvous, organized by the Northern California Fleet of the Classic Yacht Association, to show off these beautiful vessels. A collection of Stephens Bros. documents, photographs and original drawings are available to the public in the archives of The Haggin Museum in the brothers ...
Modular propellers may be fitted to aircraft as well as boats. [1] The benefits of a modular propeller are that its specifications (such as blade pitch or propeller diameter) may be altered to suit varying conditions; and it becomes much easier to replace damaged elements, such as a broken blade. Traditional one-piece propellers may be ...
[clarification needed] The choice between using thrusters or traditional propellers to propel marine vessels is a compromise between versatility and efficiency. Propellers are designed to work in-line with a propulsion plant and produce one-directional thrust while thrusters are more customizable and have a more versatile application.
The word is commonly used in the marine vernacular, and implies a mechanical assembly that is more complicated than a propeller. The Kort nozzle, pump-jet and rim-driven thruster are examples. An example propulsor is shown in the accompanying picture. It has a shroud which cuts down on blade-tip cavitation and radiated noise.
Powerfin produces carbon fiber two, three, four and five-bladed propellers for two-stroke and four-stroke engines up to the Rotax 914 of 115 hp (86 kW). [2] [4] [5] [6]The company is noted for its use of the Clark Y airfoil, infinite blade angle adjustment, as well as for the very low rotating inertia of its designs, a key wear factor on lightweight engine gearboxes.
LOS ANGELES (Reuters) -The captain of a dive boat that caught fire and sank off the California coast in 2019, killing 34 people in one of the state's deadliest maritime disasters, was sentenced on ...
Whirl Wind Propellers Corporation, is an American manufacturer of composite propellers for homebuilt and light-sport aircraft. The company headquarters is located in Piqua Ohio. [1] The company makes composite ground adjustable aircraft propellers as well as replacement blades for the Nanchang CJ-6's V530 propeller and also airboat propellers ...