Flyf15 From , joined Dec 1969, posts, RR:
Reply 1, posted (14 years 1 month 6 days 21 hours ago) and read 17528 times:
Depends on what type of dangerous we're talking about here. As far as breaking the airplane, theres almost nothing to worry about - I've only heard of a few incidents where an airplane has been severely damaged in turbulence. As far as the people in the airplane on the other hand, it can be quite dangerous. During severe turbulence, objects can be flying throughout the cabin (some of these objects being passengers and flight attendants!) If not buckled in securely, broken legs can be a quite high possibility.
EGGD From United Kingdom, joined Feb 2001, 12443 posts, RR: 34
Reply 2, posted (14 years 1 month 6 days 21 hours ago) and read 17522 times:
Turbulence is dangerous in only one way: CAT (clear air turbulence) This can bumb and jostle an aircraft severely and is not linked to any severe weather conditions.
It can bring down any size aircraft (eg the China Airlines Jumbo that was sent spiralling down to earth over california, although luckily in this case the pilot managed to recover from the dive)
Turbulence is not usually dangerous in storms - as radar and advanced weather/warning systems prevent an aircraft venturing into any severe weather.
I hope this has answered your question sufficently.
Ryanb741 From United Kingdom, joined Mar 2002, 3222 posts, RR: 15
Reply 5, posted (14 years 1 month 6 days 21 hours ago) and read 17483 times:
Thanks everybody. I kind of figured that turbulence was in general not overly dangerous due to the fact that it is so commonplace and the a/cs are built to withstand it, but I was curious as to whether or not certain atmospheric phenomena can cause grave danger to the a/c.
I used to think the brain is the most fascinating part of my body. But, hey, who is telling me that?
Capt.Picard From , joined Dec 1969, posts, RR:
Reply 6, posted (14 years 1 month 6 days 21 hours ago) and read 17473 times:
Turbulence is also likely in the vicinity of mountain ranges due to Orographic uplift-thats air being deflected upwards by mountains.
It can sometimes be severe.
I have nothing to add to the above posts really, other than to say that unexpected turbulence can knock out the Autopilot, but the aircrew should be prepared for this by being buckled in and on standby.
Crew also generally reduce airspeed in turbulence to reduce stress on the wings and fuselage.
Quite irritating for the aircrew, and frightening for the pax.
WannaBpilot From , joined Dec 1969, posts, RR:
Reply 8, posted (14 years 1 month 6 days 16 hours ago) and read 17406 times:
One incidence that resulted in disaster was a BOAC
B-707 taking off from Tokyo in 1966. The pilot elected to deviate from the normal flightpath to give the passengers a better view of Mt. Fuji. Due to high winds at the base of Mt. Fuji and the updrafts that resulted, the 707 hit severe turbulence, broke into several pieces, and crashed into the forest. All aboard lost their lives. I read about this crash in the book, Aviation Disasters, which included a photo of the plane taxiing before takeoff. Also present in this photo is a picture of a mangled DC-8 (forgot which airline) that had crash landed the night before with several lives lost. How ironic it was for the BOAC passengers to see the DC-8 wreckage before their fateful flight. Tragic.
JETPILOT From United States of America, joined May 1999, 3130 posts, RR: 28
Reply 9, posted (14 years 1 month 6 days 16 hours ago) and read 17406 times:
Certain atmospheric conditions can contain severe turbulence.
Turbulence is considered severe when severe deviations in altitude and airspeed are encounterted. Severe turbulence is remotely encountered.
Some areas where severe turbulence may be encountered at cruising altitudes are in and around the jetstream, in the vicinity of fronts, and over the tops of thunderstorms.
Jetstream turbulence is usually more prevalent in winter as the jetstream is much stronger.
Very few people have really encounterd severe turbulence. As a pilot I have never encountered severe turbulence.
If a passenger tells you they have been in severe turbulence it was probably more like light to moderate. Most people think that light chop, not even considered turbulence, is classified as moderate turbulence.
Bottom line is that sever turbulence will scare the bejeezus out of you.