Message boards :
Politics :
AirAsia flight QZ8501 from Indonesia to Singapore missing
Message board moderation
Previous · 1 · 2 · 3
Author | Message |
---|---|
Gary Charpentier Send message Joined: 25 Dec 00 Posts: 30676 Credit: 53,134,872 RAC: 32 |
Ignasius Jonan told a parliamentary hearing in Jakarta that flight QZ8501 had ascended at a speed of 6,000ft (1,828m) per minute. But the updraft in a thunderstorm can be much faster. http://www.stormtrack.org/forum/archive/index.php/t-716.html The updraft of a supercell also has a broad low and / or mid-level rotation (mesocyclone) which my further boost its speed. Supercell updrafts generally are stronger than 50 MPH, but 70 or 80 MPH is more typical. In the Great Plains of the United States, supercells often produce baseball and grapefruit sized hail (not to mention tornadoes) because of the extreme speeds of the updrafts within. Such updrafts have been known to reach 150 to 175 MPH, or about 12,000 to 15,000 feet per minute! |
William Rothamel Send message Joined: 25 Oct 06 Posts: 3756 Credit: 1,999,735 RAC: 4 |
QZ8501 had ascended at a speed of 6,000ft (1,828m) per minute. That's less than 70 miles per hour. I would have guessed that that is not unusual--did the pilot have the yoke pulled back in a climbing position ?? No passenger or fighter jet would attempt to climb so fast, he said. That's nonsense, I have seen an F-i8 climb vertically at well over 500 miles per hour Very poor reporting if you ask me. |
Gary Charpentier Send message Joined: 25 Dec 00 Posts: 30676 Credit: 53,134,872 RAC: 32 |
Very poor reporting if you ask me. I think the reporting is correct, but the official being quoted has zero experience in aviation. I think the Minister of Transportation wants desperately to blame the crew, because he doesn't want it to fall on his ATC for giving out bad weather information or refusing to give the aircraft weather avoidance vectors. It happened on his watch and it would be his fault. |
Darth Beaver Send message Joined: 20 Aug 99 Posts: 6728 Credit: 21,443,075 RAC: 3 |
The pilots where probably caught in a micro burst i think there called , and that's why he/she pulled the yoke back and it stalled . .... Inexperience , bad weather , bad direction from air traffic controllers . and just bad luck for those on board . :( |
Lynn Send message Joined: 20 Nov 00 Posts: 14162 Credit: 79,603,650 RAC: 123 |
update. AirAsia crash: 'Co-pilot was flying plane' The AirAsia plane that crashed into the Java Sea on 28 December was under the control of its co-pilot when it went down, Indonesian investigators say. The flight data recorder, retrieved along with the cockpit voice recorder earlier this month, showed Frenchman Remi Plesel was at the controls. Officials said it was common practice for the co-pilot to take charge. The plane was carrying 162 people from Surabaya to Singapore when it crashed. So far, 73 bodies have been recovered. Mardjono Siswosuwarno, head investigator of Indonesia's National Transportation Safety Committee (NTSB), said the flight data recorder had provided a "pretty clear picture" of what happened in the flight's last moments. Capt Plesel was in charge from take-off until the cockpit voice recording ends, he said, adding that this was common practice. http://www.bbc.com/news/world-asia-31034135 |
©2024 University of California
SETI@home and Astropulse are funded by grants from the National Science Foundation, NASA, and donations from SETI@home volunteers. AstroPulse is funded in part by the NSF through grant AST-0307956.