Wednesday, January 30, 2019

Ultra-long-haul flights: Nonstop to the world – at the expense of the climate

Who wanted to fly in the fifty years, from Europe to North America, needed patience. The range of propeller-driven machines were often not even 2000 kilometers. A flight from Germany to New York, for example, required between landings in Iceland and in Newfoundland, where the machines were refueled.

Today, Jets can reach almost any destination on earth nonstop. The record in the case of scheduled flights on Singapore Airlines, the Airbus A350 currently holds-900 ULR non-stop from Singapore to New York. 17 to 18 hours need the machine for more than 15,000 kilometers long distance.

Among the other ultra long-haul non-stop Doha – Auckland, London – Perth and Manila – New York. Possible the marathon trips to make it especially easy and economical aircraft such as Boeing’s Dreamliner B787, the A350-900 and the somewhat older B777-200 LR. Also, the double-deck Airbus A380 creates stop routes such as Dubai, Auckland or Sydney – Dallas without a tank.

The largest possible circle on the surface of a sphere is called a great circle. He splits a bullet in two identical sized halves. The shortest possible connection between two points on a spherical surface goes along the great circle that passes through both points. A Jet is always flying on the great circle? The great circle is the shortest path from airport A to airport B. Often soft Jets, however, of this Route. Reasons assigned flight corridors, high mountains, for aircraft locked regions, and the Jetstream. Aircraft can save kerosene, if you fly detours, but parallel to the fast high altitude winds. Where does the data originate? The information on geographical distances on the great circle, in fact, flown distances and flight times come from the Portal Flightradar24.com. The calculations for the CO2-balance of the flights conducted by atmosfair. The prices of the connection between London – Perth nonstop and with a stopover in Dubai, we have requested for 28 different flight data in a period from the end of February to the end of June, Google and Microsoft. Was used the mean value.

In practice, pilots to choose not necessarily the shortest path from A to B. The Airlines long distances to take often in purchase to have the upper-level winds, the jet stream, exploit, and to save kerosene.

An extreme example of this is the flight Delhi – San Francisco by Air India. The shortest path would lead via the Himalayas, Siberia and Alaska. Actually Air India is flying with the jet stream over the Pacific ocean. The path is so although 3000 kilometers, the flight time is still an hour on the return flight goes over the Arctic.
30/01/19 insider
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