Tuesday, 16 September 2014

Miss Emili, Miss Shaa, Miss Ann, Mr P, Mr V

Hello There! Lets talk about disasters that occurred a lot these days which is aviation disasters. We see news go non stop about this. What is it that we don’t know?

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Definition
Based on the link http://en.wikipedia.org/wiki/Aviation the meaning of aviation is the practical aspect or art of aeronautics, being the design, development, production, operation, and use of aircraft, especially heavier-than-air aircraft. The word "aviation" was coined by French writer and former naval officer Gabriel La Landelle in 1873, from the verb "avier" (synonymous flying), itself derived from the Latin word "avis" ("bird") and the suffix "-ation".



Cause of disaster

The most common causes of aircraft crashes include the following:

Defective Design and/or Materials - Defects in this category can cause metal fatigue, cracking, and/or in-flight failure of critical components.




In-Flight Instrument or Avionics Failure - Cockpit instruments such as attitude indicators, altimeters, and autopilots can fail in flight without warning, with catastrophic results to pilots and passengers.



Negligent Maintenance or Repair - Maintenance records and log books are kept to record an aircraft's maintenance history, and are an important part of any postcrash investigation.


Pilot Error - A pilot's failure to exercise due diligence can be a principle or partial cause of a crash.





Air Traffic Control Errors - Failure to follow proper air traffic control rules and procedures can lead to disaster.







In-Flight Icing - Icing is a contributing or causal factor in numerous fatal aircraft crashes.




Fuelling Errors - Fuel mismanagement such as starvation, exhaustion, or contamination often results in crashes.




History of disaster

1919
August 2 – A Caproni Ca.48 crashes at Verona, Italy, during a flight from Venice to Taliedo, Milan, kills all on board (14, 15, or 17 people, according to different sources).

1922                                    
April 7 – In the first mid-air collision of airliners, a Daimler Hire Ltd.-operated de Havilland DH.18A, G-EAWO, collides with a Compagnie des Grands Express AĆ©riens (CGEA)-operated Farman F.60 Goliath, F-GEAD, over the Thieulloy-St. Antoine road near Picardie, France, killing all seven people on both aircraft.

1923
May 14 – An Air Union Farman F.60 Goliath crashes near Monsures, Somme, France due to the structural failure of a wing, killing all 6 on board.

August 27 – An Air Union Farman F.60 Goliath crashes near East Malling, Kent, England due to engine failure, and confusion among the passengers, killing one of 13 on board.

1924
December 25 – An Imperial Airways de Havilland DH.34 crashes near Purley, Surrey, England killing all 8 on board; the cause was never determined.



Who investigated?
Annex 13 of the Chicago Convention provides the international Standards And Recommended Practices that form the basis for air accident and incident investigations by signatory countries, as well as reporting and preventative measures. The International Civil Aviation Organization (ICAO) is specifically focused on preventing accidents, rather than determining liability.

Australia
Within Australia, the Australian Transport Safety Bureau is the federal government body responsible for investigating transport-related accidents and incidents, covering air, sea, and rail travel. Formerly an agency of the Department of Infrastructure, Transport, Regional Development and Local Government, in 2010, in the interests of keeping its independence it became a stand alone agency.

United Kingdom
In the United Kingdom, the agency responsible for investigation of civilian air crashes is the Air Accidents Investigation Branch (AAIB) of the Department for Transport. Its purpose is to establish the circumstances and causes of the accident and to make recommendations for their future avoidance.

                                                 

Safety
In over one hundred years of implementation, aviation safety has improved considerably. In modern times, two major manufacturers still produce heavy passenger aircraft for the civilian market: Boeing in the United States of America, and the European company Airbus. Both place huge emphasis on the use of aviation safety equipment, now a billion-dollar industry in its own right; for each, safety is a major selling point—realizing that a poor safety record in the aviation industry is a threat to corporate survival. Some major safety devices now required in commercial aircraft involve:






Evacuation slides — aid rapid passenger exit from an aircraft in an emergency situation.
Advanced avionics – Computerized auto-recovery and alert systems.
Turbine engines – durability and failure containment improvements.
Landing gear – that can be lowered even after loss of power and hydraulics.