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An electric aircraft is an aircraft powered by electricity. Electric aircraft are seen as a way to reduce the environmental effects of aviation, providing zero emissions and quieter flights. Electricity may be supplied by a variety of methods, the most common being batteries.
Like other types of saddle, it lies on the horse's back directly behind the withers, often has an internal supportive framework (referred to as a saddle tree), and usually is secured on either side by a girth passing beneath the horse. Unlike riding saddles, it is an integral part of the harness and is not used as stand-alone equipment.
Failure modes for tethers are considered in their design. [2] A cord or rope tether may reach its breaking strength and fail. Outcomes can include an injury or fatal fall, and damage or loss of life to personnel or bystanders caused by backlash of the ruptured segments.
Vivarail battery electric train. Vivarail have produced the Class 230 train which is converted from redundant London Underground D-Stock trains. A demonstrator unit, the two-car 230002, was fitted for diesel-electric- battery power. Vivarail developed a fast charger giving a 100 mi (160 km) range with a 10 minutes recharging time. [1]
Electric potential is generated across a conductive tether by its motion through the Earth's magnetic field. The choice of the metal conductor to be used in an electrodynamic tether is determined by a variety of factors. Primary factors usually include high electrical conductivity and low density. Secondary factors, depending on the application ...
A tapadero, sometimes referred to as a "hooded stirrup," is a leather cover over the front of a stirrup on a saddle that closes each stirrup from the front. A tapadero prevents the rider's boot from slipping through and also prevents brush encountered while working cattle on the open range from poking through the stirrup, injuring or impeding ...
Tether cars are often small (less than 1 meter in length), powered by a non-radio controlled model aeroplane engine (two stroke, glow plug, piston liner, etc.), and run on fuel supplied by a fuel tank within the car. Since 2015, electric motor driven cars, powered by batteries, have also emerged. [2]
Tightening the girth, or cinch, of a western saddle. Several types of girth are shaped to allow ample room for the elbows. The Balding style is a flat piece of leather cut into three strips which are crossed and folded in the center, and the Atherstone style is a shaped piece of baghide with a roughly 1.5” wide strip of stronger leather running along the center.