In Germany alone, more than one million civilian drones were sold inand the trend is rising. Because these small objects are increasingly posing a threat to the air traffic in the vicinity of airports, the European Aviation Safety Agency EASA and telecommunications provider Vodafone are testing ways in which security forces can take over control of these aircraft. As the drones take to the sky, the demands on legislation and safety systems also increase.
An electric aircraft runs on electric motors rather than internal combustion engineswith electricity coming from fuel cellssolar cellsultracapacitorspower beaming or batteries.
Currently, flying electric aircraft are mostly experimental prototypes, including manned and unmanned aerial vehiclesbut there are some production models on the market already. Jet engine The Concorde supersonic transport aircraft Jet aircraft are propelled by jet engineswhich are used because the aerodynamic limitations of propellers do not apply to jet propulsion.
These engines are much more powerful than a reciprocating engine for a given size or weight and are comparatively quiet and work well at higher altitude.
Variants of the jet engine include the ramjet and the scramjet which rely on high airspeed and intake geometry to compress the combustion air, prior to the introduction and ignition of fuel. Rocket motors provide thrust by burning a fuel with an oxidizer and expelling gas through a nozzle.
Turbofan Most modern jet planes use turbofan jet engines which balance the advantages of a propeller, while retaining the exhaust speed and power of a jet.
This is essentially a ducted propeller attached to a jet engine, much like a turboprop, but with a smaller diameter. When installed on an airliner, it is efficient so long as it remains below the speed of sound or subsonic. Jet fighters and other supersonic aircraft that do not spend a great deal of time supersonic also often use turbofans, but to function, air intake ducting is needed to slow the air down so that when it arrives at the front of the turbofan, it is subsonic.
When passing through the engine, it is then re-accelerated back to supersonic speeds. To further boost the power output, fuel is dumped into the exhaust stream, where it ignites. This is called an afterburner and has been used on both pure jet aircraft and turbojet aircraft although it is only normally used on combat aircraft due to the amount of fuel consumed, and even then may only be used for short periods of time.
Concorde are no longer in use largely because flight at supersonic speed creates a sonic boom which is prohibited in most heavily populated areas, and because of the much higher consumption of fuel supersonic flight requires.
Due to the speed needed for takeoff and landing, jet aircraft use flaps and leading edge devices to control the lift and speed. Many jet aircraft also use thrust reversers to slow down the aircraft upon landing.
Ramjets require forward motion before they can generate thrust and so are often used in conjunction with other forms of propulsion, or with an external means of achieving sufficient speed. Fuel is added and ignited, which heats and expands the air to provide thrust.
Scramjet A scramjet is a supersonic ramjet and aside from differences with dealing with internal supersonic airflow works like a conventional ramjet.
This type of engine requires a very high initial speed in order to work. The NASA Xan experimental unmanned scramjet, set a world speed record in for a jet-powered aircraft with a speed of Mach 9.
The first plane to break the sound barrier in level flight was a rocket plane — the Bell X The later North American X broke many speed and altitude records and laid much of the groundwork for later aircraft and spacecraft design.This paper will briefly explore the role of communication in aviation safety, especially as communication functions to provide informatio n, establish interpersonal relationships, coordinate activity, monitor conditions, and as a management tool.
Guidelines on Health & Safety Issues A series of guidelines have been developed by IATA's Medical Advisory Group, addressing general medical issues and aviation and communicable diseases. The guidelines are meant to help airlines address emergency public health issues, particularly in the case of suspected communicable diseases.
From the Paper: "Child safety seats are a recommended idea for an aviation corporation because a child is far more likely to break their bones or demise in a plane crash or a near plane crash because the seating that parents bring on board for their child are only equipped for vehicular mishap and not aviation .
Airplane Safety Essay - The main purpose of the article, Airspace Blunders, is to identify the leading causes for airspace incursions, more commonly known as near-midair collisions, and to provide alternative courses of action to prevent them.
Regulation plays a critical role in the safety and security of the aviation system and is a necessary aspect of business operations in a functioning market economy. The aviation industry recognizes that regulation benefits consumers and the industry alike by providing clarity and. Review of Accident Data.
Summary of US Civil Aviation Accidents for Calendar Year Summary of US Civil Aviation Accidents for Calendar Year