Sunday, July 6, 2014
Thursday, June 5, 2014
Skiathos, the Second St Maarten! Low Landings and Jetblasts - A Plane Spotting Movie
Thursday, March 6, 2014
Ryanair Flight 8347
Saturday, February 1, 2014
Friday, January 24, 2014
Wednesday, September 25, 2013
Air shows 2013
A Romanian boy plays with his toy plane while Jurgis Kairys, a Lithuanian aerobatic pilot and aeronautical engineer, performs a freestyle aerobatic maneuver with his modified Sukhoi SU 31, at the Bucharest International Air Show 2013, at Baneasa airport, in Bucharest, Romania, on July 27. (Robert Ghement/European Pressphoto Agency)
Monday, May 21, 2012
Sunday, May 13, 2012
Airbus A380 Contrail as seen from KLM Cockpit Boeing B747-400
Monday, April 2, 2012
Thursday, December 1, 2011
Friday, August 26, 2011
Sunday, July 31, 2011
10 Terrifying Airport Runways
Check out some of the scariest takeoff and touchdown spots around the world
White-knuckle travelers beware: The airports below are notorious for their tricky, and oftentimes terrifying, runways. Whether the shorter-than-average landing strips end with an abrupt drop-off or mountainous terrain makes for a twisting flight path, getting to and from these airports takes some serious know-how. Fasten your seatbelts and read on to learn about the 10 most frightening runways out there.Paro Airport, Bhutan
Nestled in a valley below the Himalayan Mountains, Bhutan's Paro Airport is notoriously frightening to fly into. In addition to navigating the area's 16,000-foot-high jagged peaks, pilots also must contend with forceful winds that gust around the mountains. But if you find yourself on a flight to Paro, rest assured that you're in good hands: Only eight pilots in the world are qualified to make the landing.
Toncontìn Airport, Honduras
A variety of factors, including a short runway, proximity to mountainous terrain and a tricky approach, make Honduras's Toncontìn Airport infamously challenging to fly into. In 2008, after the crash of a TACA airlines flight at the airport, all international flights were temporarily diverted to Soto Cano Air Base, and Toncontìn was reserved solely for domestic flights and smaller aircrafts.
Kai Tak, Hong Kong, China
It's no longer open, but Kai Tak Airport in Hong
Juancho E. Yrausquin Airport, Saba, Netherlands Antilles
On the northeast corner of Saba—the smallest of the Caribbean's Antilles islands—sits the tiny airstrip at Juancho E. Yrausquin Airport. Trade winds and a mountainous terrain make it necessary to navigate the territory carefully, or else risk overshooting the 1,300-foot-long runway and ending up in the vast sea below.
Barra Airport, Scotland
Tarmac? What tarmac? At Scotland's Barra Airport, located on Traigh Mhor beach, planes land right on the sand. When the tide comes in daily, the airport is washed away. And when the sun starts to set, a few cars' headlights in a nearby parking lot provide illumination, since the airport features no artificial light. Sunbathers must watch out: When the windsock is flying, the airport is active, and they need to take their towels elsewhere.
Courchevel Airport, France
Since it's part of the French Alps' Les Trois Vallées ski resort, it's no surprise that Courchevel Airport's slanted, snow-flanked runway resembles a ski slope, complete with a vertical drop at the end. Pair the undulating landing strip with the region's snow, ice and blustery winds, and it's easy to see why this small airport has made our list.
Tioman Island, Malaysia
Getting to gorgeous, tropical Tioman Island isn't for the faint of heart: The airport's short runway not only ends in an abrupt drop off a cliff's edge, but pilots are forced to head straight for the mountains before making a sharp 90-degree turn to line the aircraft up directly with the landing strip.
LaGuardia Airport, New York
Thanks to congested airspace—nearby John F. Kennedy and Newark Airports also have competing traffic—as well as runways that jut out into the water, New York's LaGuardia airport is no piece-of-cake landing spot. One runway's approach requires pilots to make a steep, low-altitude turn frighteningly close to the ground.
McMurdo Station Airport, Antarctica
When aircrafts carrying researchers or supplies touch down in Antarctica's McMurdo Station, they do so upon ice, not tarmac. Though the ground's
Tenzing-Hillary Airport, Nepal
Named for two climbers who conquered Mount Everest,
Thursday, July 7, 2011
Tuesday, April 26, 2011
Tuesday, March 8, 2011
Sunday, November 28, 2010
Tuesday, June 22, 2010
Monday, June 7, 2010
A2 hypersonic airplane
Development
The vehicle is intended to have about 20,000 kilometres (12,000 mi) range and good subsonic and supersonic fuel efficiency, thus avoiding the problems inherent in earlier supersonic aircraft. The top speed is projected to be Mach 5+. It calls for the use of liquid hydrogen as a fuel, which has twice thespecific energy of kerosene, and can be used to cool the vehicle and the air entering the engines via a precooler.
The developers say it would be able to fly from Brussels to Sydney in about 4.6 hours; compared to around a complete day of travel with normal aircraft. The cost of a ticket is intended to be roughly business class level.[1]
| “ | Our work shows that it is possible technically; now it's up to the world to decide if it wants it. | ” |
— Alan Bond, managing director of Reaction Engines Limited |
Design
Capabilities
Alan Bond told The Guardian newspaper:[2]
| “ | The A2 is designed to leave Brussels International Airport, fly quietly and subsonically out into the north Atlantic at Mach 0.9 before reaching Mach 5 across the North Pole and heading over the Pacific to Australia. | ” |
Another advantage of the design is that, while the 143 metre-long A2 is much bigger than conventional jets, it would be lighter than a Boeing 747 and could take off and land on current airport runways.
However, the A2 design does not have windows. The heat generated by traveling so quickly makes it difficult to install windows that are not too heavy. One solution Reaction Engines has proposed is to install flat panel displays, showing images of the scene outside.
Engines
The Scimitar engines use related technology to the company's earlier SABRE an engine which is intended for space launch, but here adapted for very long distance, very high speed travel.
Normally, as air enters a jet engine, it is compressed by the inlet, and thus heats up. This means that high speed engines need to be made of technologies and materials that can survive extremely hightemperatures. In practice, this inevitably makes the engines heavier and also reduces the amount of fuel that can be burnt to avoid melting the gas turbine section of the engine, which in turn reduces thrust at high speed.
The key design feature for the Scimitar engines is the precooler, which is a heat exchanger that transfers the heat from the incoming air into the hydrogen fuel. This greatly cools the air, which allows the engines to burn more fuel even at very high speed, and allows the engines to be made of lighter, but more heat susceptible, materials such as light alloys.
The rest of the engine is described as having high-bypass (4:1[3]) turbofan engine features to give it good efficiency and subsonic (quiet) exhaust velocity at low speeds. Unlike SABRE the A2's engine would not have rocket engine features.
Specifications
- Range: 20,000 kilometres (12,000 mi)
- Length: 143 metres (469 ft)
- Fuel: Liquid hydrogen
- Passengers: 300 (Single Class)
- Cruising speed: Mach 5
- Specific fuel consumption: 0.86 lbf/lb·h at Mach 5 (40,900 m/s[4] - 4,170 seconds), 0.375 lbf/lb·h at Mach 0.9 (96,000 m/s[4] - 9,600 seconds)
- Lift to drag ratio: 11.0 at 5.9 km, Mach 0.9, 5.9 at 25 km Mach 5[5]
- Noise: 101 dBa at 450m lateral[5]