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aries1988 : aviation   64

What is turbulence—and how can you calm down about it?

Rough air happens everywhere, from ground level to far above cruising altitude. But the most common turbulence experienced by flyers has three common causes: mountains, jet streams, and storms.

At NCAR, Sharman has been working since 2005 to build much more precise “nowcasting” turbulence tools.

Here’s how it works: an algorithm currently installed on around 1,000 commercial airliners analyzes information from onboard sensors to characterize each plane’s movement at any given moment. Using data on forward velocity, wind speed, air pressure, roll angle, and other factors, the algorithm generates a local atmospheric turbulence level, which is fed back into a national system every minute. Used in conjunction with national weather forecasts and models, the tool annotates forecasts with real-time conditions, which in turn helps to strengthen weather prediction models.
turbulence  aviation  travel  plane  engineering  app 
4 weeks ago by aries1988
Airlines bid to beat their weight problem
Engine makers, too, are finding ways to lighten their turbines — on average weighing 6,350kg each for large jets. Roughly 340kg can be cut from a wide-body engine by using composite materials for fan blades and the fan case, according to Rolls-Royce. Titanium aluminide, an even newer material that replaces heavier nickel alloys, can make further reductions in the hottest parts of an engine. It is a virtuous circle, says Mr Parker. “If you put on a blade that is one-third the weight you can have a turbine disc that is lighter as well. And then the casing can be lighter and thinner. The positive benefit goes round and round.”
Composite materials are reducing the weight of wings but a lightning strike would punch straight through without the inclusion of metallic elements.
aviation  future  engineering 
december 2016 by aries1988
History, Travel, Arts, Science, People, Places | Smithsonian
More than 20 million people in the U.S. are afraid of flying. Sitting in a chair that's floating in the air may be technologically stunning to some, but that…
explained  travel  aviation 
november 2016 by aries1988
The language of the cockpit is technical, obscure – and irresistibly romantic – Mark Vanhoenacker | Aeon Essays

For example, we’re instructed to pronounce three as ‘TREE’ and nine as ‘NINER’, and 25,000 as ‘two-five thousand’ (more specifically, ‘TOO FIFE TOUSAND’), not ‘twenty-five thousand’, because experience has shown that these modified pronunciations are less likely to be misunderstood.

Though Aeroese has predominantly English roots, a handful of common meteorological abbreviations have French origins (as do the words fuselage and aileron, of course). BR is Mist (brouillard) GR is Hail (grêle); HN is Sunset to Sunrise (horaire de nuit). MI is Shallow (a usage derived from mince) and BC is Patches (from bancs). I used some of these for years and never once wondered where they came from, until I researched them for my book.

aircraft? Why, that’s ‘any machine that can derive support in the atmosphere from the reactions of the air other than the reactions of the air against the Earth’s surface’. In a heavens-transiting industry, angels are ‘an echo caused by physical phenomena not discernible to the eye… sometimes attributed to insects or birds flying in the radar beam’.

Terrain is important, but it sounds obvious, so much so that I never thought about how to define it: ‘the continuous surface that exists at the bare earth, the top of the [forest] canopy or something in-between, also known as the first reflective surface’.

Before I was either a pilot or a writer, I was a teenager whose obsessions, aside from airplanes, included browsing dictionaries, encyclopaedias and atlases, and staring at samples of languages that I’d never heard of, let alone studied. In my late 20s, when I finally started training to become a pilot, I was happy to realise how fascinating the sky is for anyone who loves words.

There are exceptions – places where controllers may speak to local pilots in a shared first language. This often occurs in France, for example, when a French pilot arrives in French skies. It also occurs when longhaul French pilots cross the aerial borders into the administrative airspace region of the Canadian sky known as Montréal. But every airline pilot flying internationally can speak English, and usually does.
essay  flight  aviation  metier  plane  language  world  travel 
june 2016 by aries1988
在飞机上如何拍出好的照片? - Justin Liu 的回答 - 知乎
我曾经非常热衷于航拍地面风景,每个白天的航班都会精心设计拍摄计划,在此分享一下我的经验和教训:(新疆,飞向天山)航线侦察好的航拍必须建立在好的航线之上,也就是说航线周围得有些可以拍摄的景观。通常我会在谷歌地球( Google E…
plane  aviation  photo 
april 2016 by aries1988
British Airways and Lufthansa carbon emissions in spotlight —
BA and Lufthansa both fly Boeing 747-400 planes, relatively old aircraft that are less fuel efficient than modern alternatives, and have a high use of premium seating, which reduces the total number of people who can fly on jets.

In comparison, Norwegian has invested in new aircraft types such as the fuel-efficient Boeing 787 Dreamliner. It also has a below-average number of business and first-class seats, at 11 per cent, compared to BA’s 24 per cent.

ICCT compared fuel efficiency by using a ratio metric of the average passenger kilometres travelled to the litres of fuel burnt on a typical nonstop transatlantic flight.
aviation  2015  atlantic 
november 2015 by aries1988
Japan’s first domestic passenger jet takes maiden flight – video
The Mitsubishi Regional Jet, Japan’s first modern commercial passenger plane, successfully completes its first test flight at Nagoya airport on Wednesday
video  japan  aviation 
november 2015 by aries1988
A new era of ‘ultra-long-haul’ aviation
Fuel-efficient technology and cheaper oil are driving the return of 19-hour, non-stop flights
future  aviation 
november 2015 by aries1988
Pressing on | The Economist
A spate of accidents will not put Asians off air travel.

The region is one of the world’s fastest-growing aviation markets. Its 50-odd carriers are awaiting delivery of 1,600 new planes, about the same number as are in their fleets today. Boeing, an American planemaker, thinks regional airlines will need to order more than 3,000 new aircraft over the next 20 years.

In much of the region rutted roads and fickle seas are a far bigger worry. A recent study of 160 ferry accidents since 2000, costing nearly 17,000 lives, showed that Indonesia and the Philippines were among the most lethal places to board a boat (only Bangladeshi vessels were more deadly). Images of grieving families in Singapore and Surabaya have horrified Indonesians, and the world. But journeys are still safer in the skies.
accident  aviation  banyan 
may 2015 by aries1988
The future of flying -
Another tip he offered, for those flying anywhere near the Northern Lights, is that pilots rarely announce such things because they normally occur as passengers are trying to sleep. If you want to be alerted, you need to let the cabin crew know.
book  aviation  pilot  experience  temoignage 
may 2015 by aries1988
The crashes that changed plane designs forever
At any one time hundreds of thousands of us are cocooned in pressurised cabins scything through the cold upper reaches of the troposphere. Soon enough, this…
crash  plane  story  history  aviation 
may 2015 by aries1988
Inside a Pilot’s Mind
Cockpit conduct is well regulated, but ruling out human flaws is harder.
plane  aviation  psychology 
march 2015 by aries1988
Un musée de l'aviation à Blagnac
Aeroscopia, un site dédié à l'histoire de l'aéronautique atterrit au pays d'Airbus. La vaste aérogare présente les pionniers, les constructeurs et leurs avions les plus emblématiques.
museum  Toulouse  aviation  travel 
january 2015 by aries1988
苦干数十年,日本飞机制造业力图东山再起 - 纽约时报中文网 国际纵览
japan  aviation  business  future 
may 2013 by aries1988
China Takes Off | Popular Science
James Fallows is the author of China Airborne, which will be published by Pantheon this month.
china  aviation  future  infrastructure  reading  info  environment 
august 2012 by aries1988
Video: How to Fold the Longest-Flying Paper Airplanes
Brian Christian's book The Most Human Human, newly out in paperback, tells the story of how the author, "a young poet with degrees in computer science and philosophy," set out to win the "Most Human Human" prize in a Turing test weighing natural against artificial intelligence. Along the way, as he prepares to prove to a panel of judges (via an anonymous teletype interface) that he is not a machine, the book provides a sharply reasoned investigation into the nature of thinking. Are we setting ourselves up for failure by competing with machines in their analytical, logical areas of prowess rather than nurturing our own human strengths? -- Delivered by Feed43 service
plane  paper  video  aviation 
may 2012 by aries1988
The Jets of the Future
NASA asked the world’s top aircraft engineers to solve the hardest problem in commercial aviation: how to fly cleaner, quieter and using less fuel. The prototypes they imagined may set a new standard for the next two decades of flight.-- Delivered by Feed43 service
plane  future  aviation 
may 2012 by aries1988
JetPhotos.Net - The Friendly Way to Fly!
Online aviation photo database, featuring thousands over 1 million photographs of jet airliners, general aviation airplanes, business jets, cargo planes, military aircraft, discussion forums, aircraft census and more. The Friendly Way to Fly.
aircraft  photo  aviation 
august 2009 by aries1988
2009 巴黎航展 Sallon du Bourget 2009 - 专辑 - 优酷视频
2009 巴黎航展 Sallon du Bourget 2009
整整3个小时的飞行表演,Eurocopter EC665 Tiger, Boeing E-3A AWACS, Sukhoi Superjet 100, Dassault Rafale C, Airbus A380, Eurofighter Typhoon, Alenia C-27J, Alenia Macchi M346, Boeing F/A-18E/F Super Hornet, Lockheed Martin C-130J He...
video  loisir  aviation 
july 2009 by aries1988
Track Flight Status, Airport Delays and other Flight and Airport Information
Track flight status, flight departures, flight arrivals, airport delays and other flight and airport information in real time
map  search  aviation  online  avion  travel 
july 2009 by aries1988
Aéroport Toulouse-Blagnac
Site officiel de l'Aéroport Toulouse-Blagnac : Horaires en temps réel, guide du voyageur, plan d'accès et détail des services offerts.
aviation  avion  france  transport  toulouse  travel 
july 2009 by aries1988

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