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Boarding Stairs
Boarding stairs, sometimes called a boarding ramp, or a gangway in the case of ships, are devices, designed to safety standards, which passengers and crew use to board a ship or an aircraft when no Airstairs, built-in stairs are available. Larger aircraft may use one or more Aircraft access gangway, fingers attached to the terminal building for passenger boarding, but boarding stairs are used when these are not available or it is impractical or too expensive to use them. Description Boarding stairs must be robust and stable, capable of withstanding adverse weather conditions. They are designed to adapt to the curved shape of the aircraft fuselage to which they must be attached, and to be able to raise and lower them to adjust the upper platform to the height of the aircraft, allowing passengers get on and off from the ground to the aircraft door, thus providing a comfortable and safe way for boarding and disembarking. which is part of the airport infrastructure. They are gene ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stairs On Aircraft
Stairs are a structure designed to bridge a large vertical direction, vertical distance between lower and higher levels by dividing it into smaller vertical distances. This is achieved as a diagonal series of horizontal platforms called steps which enable passage to the other level by Walking, stepping from one to another step in turn. Steps are very typically rectangular. Stairs may be straight, curved, or may consist of two or more straight pieces connected at angles. Types of stairs include staircases (also called stairways) and escalators. Some alternatives to stairs are elevators (also called lifts), stairlifts, inclined moving walkways, ladders, and ramps. A stairwell is a vertical shaft or opening that contains a staircase. A flight (of stairs) is an inclined part of a staircase consisting of steps (and their lateral supports if supports are separate from steps). History ''This is an excerpt from Staircase.'' The concept of stairs is believed to be 8000 years old, and is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Airline Service Trolley
An airline service trolley, also known as an airline catering trolley, airline meal trolley, or trolley cart, is a small serving cart supplied by an air carrier for use by flight attendants inside the aircraft for transport of beverages, airline meals, and other items during a flight. History The airline service trolley system was introduced in the late 1960s at the same time as a new generation of large "widebody" aircraft were entering into service with the airlines. The significantly larger number of passengers on these aircraft meant that meals could no longer be efficiently delivered by hand, as they had been until that time. The growth of at-seat service on long distance rail has led to the adoption of similar service trollies for this purpose. Design The trolley is a rigid box form with castering wheels at each corner that can be braked to hold the trolley in position. Full and half size trollies are made. The front (both full and half size) and rear (full size only) have ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ground Support Equipment
Ground support equipment (GSE) is the support equipment found at an airport, usually on the apron, the servicing area by the terminal. This equipment is used to service the aircraft between flights. As the name suggests, ground support equipment is there to support the operations of aircraft whilst on the ground. The role of this equipment generally involves ground power operations, aircraft mobility, and cargo/passenger loading operations. Many airlines subcontract ground handling to an airport or a handling agent, or even to another airline. Ground handling addresses the many service requirements of a passenger aircraft between the time it arrives at a terminal gate and the time it departs for its next flight. Speed, efficiency, and accuracy are important in ground handling services in order to minimize the turnaround time (the time during which the aircraft remains parked at the gate). Small airlines sometimes subcontract maintenance to a larger carrier, as it may be a bett ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Visual Guidance Docking System
A stand guidance system is a system which gives information to a pilot attempting to park an aircraft at an airport stand, usually via visual methods, leading to the term ''Visual Docking Guidance System'' (VDGS) and also ''A-VDGS'' (the A standing for advanced) This allows them to remain clear of obstructions and ensures that jetways can reach the aircraft. AGNIS VDGS Azimuth Guidance for Nose-In Stand is one of the most popular forms of stand guidance. It consists of two coloured lights mounted side by side. If the pilot is on the stand centreline they will see two green lights. If they are off centreline, one of the lights will appear red and the pilot then steers towards the green one. AGNIS alone provides only azimuth guidance, it does not inform pilots when they should stop. It is relatively imprecise but cheap to implement and reliable. PAPA The Parallax Aircraft Parking Aid is frequently combined with an AGNIS system, informing flight crews when to stop. The device feature ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pushback (aviation)
In aviation, pushback is an airport procedure during which an aircraft is pushed backwards away from its parking position, usually at an airport Gate (airport), gate by external power. Pushbacks are carried out by special, low-profile vehicles called ''pushback tractors'' or ''tugs''. Although many aircraft are capable of moving themselves backwards on the ground using reverse thrust (a procedure referred to as a ''powerback),'' the resulting jet blast or prop wash would cause increased noise, damage to the terminal building or equipment, and can cause injury to airport staff due to flying debris. This debris would also be sucked into the engine, as it is in normal use, and cause excessive wear - a major cause of wear on aircraft engines is during ground use. A pushback is therefore the preferred method when ground-handling aircraft. Definition International Air Transport Association, IATA defines aircraft pushback as "rearward moving of an aircraft from a parking position to a t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Non-road Engine
Non-road engines (or non-road mobile machinery in the European Union) are internal combustion engines that are used for other purposes than a motor vehicle that is used on a public roadway. The term is commonly used by regulators to classify the engines in order to control their emissions. Non-road engines are used in a wide range of applications which may include machinery and non-road vehicles. In many jurisdictions, the term non-road engine is assumed to refer to the engines that have mobility or portability, which is separated from the term stationary engine. The definition of non-road engine may explicitly exclude certain non-road vehicles such as aircraft, locomotives, and ocean-going marine vessels. Classifications There are many classifications of the non-road engines based on the jurisdictions. The following are common classifications: * lawn mowers, chainsaws, string trimmers and garden equipment * snowmobiles, dirt bikes, monster trucks and off-road vehicles ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydraulics International, INC
Hydraulics () is a technology and applied science using engineering, chemistry, and other sciences involving the mechanical properties and use of liquids. At a very basic level, hydraulics is the liquid counterpart of pneumatics, which concerns gases. Fluid mechanics provides the theoretical foundation for hydraulics, which focuses on applied engineering using the properties of fluids. In its fluid power applications, hydraulics is used for the generation, control, and transmission of power by the use of pressurized liquids. Hydraulic topics range through some parts of science and most of engineering modules, and they cover concepts such as pipe flow, dam design, fluidics, and fluid control circuitry. The principles of hydraulics are in use naturally in the human body within the vascular system and erectile tissue. ''Free surface hydraulics'' is the branch of hydraulics dealing with free surface flow, such as occurring in rivers, canals, lakes, estuaries, and seas. Its sub-fie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Truck
An electric truck is a battery electric vehicle (BEV) designed to transport cargo, carry specialized payloads, or perform other utilitarian work. Electric trucks have serviced niche applications like milk floats, Ground support equipment#Pushback tugs and tractors, pushback tugs and Forklift#Battery-electric, forklifts for over a hundred years, typically using Lead-acid battery, lead-acid batteries, but the rapid development of lighter and more energy-dense Electric vehicle battery#Electric vehicle battery types, battery chemistries in the twenty-first century has broadened the range of applicability of electric propulsion to trucks in many more roles. Electric trucks reduce noise and pollution, relative to internal-combustion trucks. Due to the high efficiency and low component-counts of electric power trains, no fuel burning while idle, and silent and efficient acceleration, the costs of owning and operating electric trucks are dramatically lower than their predecessors. A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Cart
A cart or dray (Australia and New Zealand) is a vehicle designed for transport, using two wheels and normally pulled by draught animals such as horses, donkeys, mules and oxen, or even smaller animals such as goats or large dogs. A handcart is pulled or pushed by one or more people. Over time, the word "cart" has expanded to mean nearly any small conveyance, including shopping carts, golf carts, go-karts, and UTVs, without regard to number of wheels, load carried, or means of propulsion. History The history of the cart is closely tied to the history of the wheel. Carts have been mentioned in literature as far back as the second millennium B.C. The first people to use the cart may have been Mesopotamians. Handcarts pushed by humans have been used around the world. Carts were often used for judicial punishments, both to transport the condemned – a public humiliation in itself (in Ancient Rome defeated leaders were often carried in the victorious general's triumph) – a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charging Station
A charging station, also known as a charge point, chargepoint, or electric vehicle supply equipment (EVSE), is a power supply electrical device, device that supplies electrical power for recharging plug-in electric vehicles (including battery electric vehicles, electric trucks, electric buses, neighborhood electric vehicles, and plug-in hybrid vehicles). There are two main types of EV chargers: Alternating current (AC) charging stations and direct current (DC) charging stations. Electric vehicle batteries can only be charged by direct current electricity, while most mains electricity is delivered from the power grid as alternating current. For this reason, most electric vehicles have a built-in AC-to-DC converter commonly known as the "onboard charger" (OBC). At an AC charging station, AC power from the grid is supplied to this onboard charger, which converts it into DC power to recharge the battery. DC chargers provide higher power charging (which requires much larger AC-to- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baggage Tug
Baggage carts, luggage carts, luggage trolleys or trolleys are small vehicles pushed by travelers ( human-powered) to carry individual luggage, mostly suitcases. There are two major sizes: One for big luggage and one for small luggage. Carts have usually two parts for carrying luggage: A small section (basket) for carry on luggage at the same level as the handle, and a lowered large section for suitcases a small and large bags. The carts are provided in airports, large bus stations, hotels, or train stations for transporting luggage and may be free of charge. They are sometimes owned by the operator of the establishment. In some facilities carts may be provided by a contractor such as Smarte Carte for a rental fee. Baggage carts are usually built out of steel and equipped with three or four wheels. For safety reasons, they are generally fitted with a brake. Usually, a handle has to be pushed down in order to move the cart, however, in some cases, such as London airports, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bag Ramp
A baggage carousel is a device, generally at an airport, that delivers checked luggage to the passengers at the baggage reclaim area at their final destination. Airports without carousels generally deliver baggage by placing it on the floor or sliding it through an opening in a wall. Operation Bags are placed on some type of conveyor belt in a secure area not accessible by passengers. In a single-level system, the belt will deliver bags into the terminal from an opening in the wall. The belt generally runs along the wall for a short distance and then turns into the terminal forming a long oval that allows many passengers to access the belt. The belt continues back to the loading area through a second opening in the wall. In a multilevel system, the bags are generally loaded from above or below the carousel and then delivered onto a moving oval-shaped carousel. It is common for this type of system to have two delivery belts, increasing the speed with which bags can be delive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
