国产热热热精品,亚洲视频久久】日韩,三级婷婷在线久久,99人妻精品视频,精品九热人人肉肉在线,AV东京热一区二区,91po在线视频观看,久久激情宗合,青青草黄色手机视频

World / Asia-Pacific

Missing AirAsia plane could be at 'bottom of sea'

(Agencies) Updated: 2014-12-29 13:16

Missing AirAsia plane could be at 'bottom of sea'

Map showing the approximate flight path of AirAsia flight QZ8501 when it went missing on Sunday during a flight from Surabaya to Singapore. [Data/Reuters]

MULTINATIONAL SEARCH

jahjanto said two C-130 Hercules planes were focusing the search for Flight QZ8501 in areas northeast of Indonesia's Bangka island, about halfway between Surabaya and Singapore, in the Java Sea.

Australia, Malaysia, Singapore and South Korea sent ships and aircraft to join the search, a foreign ministry official said.

China also offered to send planes and ships and any other assistance Indonesia needed.

Soelistyo said Indonesia might not have the best technology to search underwater and had accepted offers of help from the United States, Britain and France. In 2007, it took Indonesia months to recover flight data recorders from a Boeing 737-400 operated by Indonesia's Adam Air which crashed off Sulawesi island, killing all 102 people on board.

According to Indonesian navy Flight Commander Laksamana Pertama Sigit Setiyanta, the sea depths in the area is only 25 to 50 metres (75-150 feet).

Flight QZ8501 was travelling at 32,000 feet (9,753 metres) and had asked to fly at 38,000 feet to avoid clouds, said Joko Muryo Atmodjo, air transportation director at Indonesia's Transport Ministry.

Permission was not given at the time due to traffic in the area. Five minutes later, at 6.17 a.m. on Sunday (2317 GMT Saturday), the plane lost contact with air traffic control, Atmodjo said.

Data from Flightradar24.com, which tracks airline flights in real time, showed several nearby aircraft were at altitudes ranging from 34,000 to 36,000 feet at the time, levels that are not unusual for cruising aircraft.

Pilots and aviation experts said thunderstorms, and requests to gain altitude to avoid them, were not unusual in that area.

"The airplane's performance is directly related to the temperature outside and increasing altitude can lead to freezing of the static radar, giving pilots an erroneous radar reading," said a Qantas Airways pilot with 25 years' experience flying in the region.

The resulting danger is that pilots take incorrect action to control the aircraft, said the pilot, who requested anonymity.

In such an emergency the pilots would likely have been wrestling to regain control of the aircraft and not had time to issue a distress signal, the Qantas pilot said.

Online discussions among pilots centred on unconfirmed secondary radar data from Malaysia that suggested the missing plane was climbing at a speed of 353 knots, about 100 knots too slow in such weather conditions.

"At that altitude, that speed is exceedingly dangerous," Sydney-based aviation expert Geoff Thomas told Reuters.

"At that altitude, the thin air, the wings won't support the aircraft at that speed and you get an aerodynamic stall."

Safety authorities say accidents involving a loss of control, such as might occur in bad weather, are rare but almost always catastrophic.

Follow live reports here

Trudeau visits Sina Weibo
May gets little gasp as EU extends deadline for sufficient progress in Brexit talks
Ethiopian FM urges strengthened Ethiopia-China ties
Yemen's ex-president Saleh, relatives killed by Houthis
Most Popular
Hot Topics

...
固镇县| 永昌县| 开平市| 徐汇区| 曲麻莱县| 江北区| 乐平市| 宕昌县| 奉新县| 青河县| 龙泉市| 赫章县| 泊头市| 郸城县| 安康市| 蛟河市| 祁东县| 错那县| 武乡县| 永安市| 温泉县| 左权县| 怀宁县| 内乡县| 拉萨市| 秦皇岛市| 高密市| 阳江市| 康定县| 宁夏| 金昌市| 东光县| 滦南县| 平陆县| 乌海市| 法库县| 牡丹江市| 南昌县| 瑞昌市| 泉州市| 连江县|