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built for Norwegian America Line; operated under Norwegian America Line from 1973 to 1983, and under Cunard from 1983 to 2004, renamed Caronia in 1999; sold to Saga Cruises 2004 and renamed Saga Ruby; retired in 2014, sold to Millennium View Ltd. in 2014, renamed Oasia and planned to be refitted as a floating hotel ship in Myanmar, but this ...
An axlebox, also known as a journal box in North America, is the mechanical subassembly on each end of the axles under a railway wagon, coach or locomotive; it contains bearings and thus transfers the wagon, coach or locomotive weight to the wheels and rails; the bearing design is typically oil-bathed plain bearings on older rolling stock, or roller bearings on newer rolling stock.
The scythed chariot was a modified war chariot. The blades extended horizontally for about 1 m (3 ft 3 in) to each side of the wheels. The Greek general Xenophon (430−354 BC), an eyewitness at the battle of Cunaxa, tells of them: "These had thin scythes extending at an angle from the axles and also under the driver's seat, turned toward the ground".
A dock shunter, "dock tank", or "docksider", is a locomotive (formerly steam but now usually diesel) used for shunting wagons in the vicinity of docks. It is usually of 0-4-0 or 0-6-0 wheel arrangement and has a short wheelbase and large buffers. These features make it suitable for negotiating sharp curves.
A Cessna 150 converted to taildragger configuration by installation of an aftermarket modification kit. Conventional landing gear, or tailwheel-type landing gear, is an aircraft undercarriage consisting of two main wheels forward of the center of gravity and a small wheel or skid to support the tail.
Traditional undershot waterwheels consisted of a series of flat blades fixed to the rim of a wheel. The blades were typically radial, i.e. mounted so that they pointed straight out along the radius of the wheel. When water from the headrace flowed past the wheel, it hit the blades, and some of its kinetic energy was converted into work by the ...
The blades are the foil section plates that develop thrust when the propeller is rotated The hub is the central part of the propeller, which connects the blades together and fixes the propeller to the shaft. This is called the boss in the UK. Rake is the angle of the blade to a radius perpendicular to the shaft.
Instruction list (IL) is one of the 5 languages supported by the initial versions of IEC 61131-3 standard, and subsequently deprecated in the third edition. [1] It is designed for programmable logic controllers (PLCs). It is a low level language and resembles assembly. All of the languages share IEC61131 Common Elements. The variables and ...