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Another version of wind vane self steering on sail boats is known as the vertical axis vane and usually, because of the inferior steering force output compared to servo pendulum devices it makes use of a trim tab hung off the rudder to control the course of the boat. The vane spins at right angles to the ground and can lock to the trim tab in ...
The first was when part of the frame holding the wind vane self-steering failed, when still 2,300 miles (3,700 km) from Sydney. Not wanting to put in at Fremantle, Western Australia , Chichester spent three days balancing sails and experimenting with shock-cord lines on the tiller, once again getting the boat to hold a course to enable her to ...
The boat also housed a Hasler self-steering system with a wind vane and servo blade as well as a Hengist-Horsa wind speed and direction indicator. Below deck the built-out consisted of a built-in writing and eating table with a small red cushioned seat that would have hidden the ‘main computer’ but instead obscured a tangle of carefully ...
Hasler's wind-vane self-steering gear revolutionised short-handed sailing, and his other major innovation—using a junk rig for safer and more manageable shorthanded sailing—influenced many subsequent sailors. [34] [35] Chichester placed second in the second running of the race four years later.
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 use of wind vane self-steering was common on long-distance cruising yachts but is increasingly being supplemented or replaced by electrical auto-pilots. The solar panels on this 28-foot (8.5 m) yacht can keep her self-sufficient in electrical power.
Internet-connected cameras made in China are giving the Chinese government the ability to "conduct espionage or disrupt US critical infrastructure," according to a Department of Homeland Security ...
These exhaust vanes or jet vanes allow the thrust to be deflected without moving any parts of the engine, but reduce the rocket's efficiency. They have the benefit of allowing roll control with only a single engine, which nozzle gimbaling does not. The V-2 used graphite exhaust vanes and aerodynamic vanes, as did the Redstone, derived from the V-2.