Linked Questions

17 votes
7 answers
6k views

Why are airplanes described as the safest method of transportation? [closed]

I will have my first flight tomorrow. It is my first time that I get into an airplane, and by the time am writing this post, I am feeling anxious and stressed a lot. I even don't talk to anyone as it ...
alim1990's user avatar
  • 295
17 votes
4 answers
16k views

Why do I never see any other planes in the sky whilst flying?

I was just wondering as I passed the airport this morning why, whilst we are flying, do I never see any other planes nearby? There must be millions of planes and millions of people flying each day, I ...
court's user avatar
  • 179
10 votes
6 answers
9k views

Why are many parts of an airliner required to be triplicated, but not the "parts" most likely to malfunction (i.e., the pilots)?

Many components of airliners are installed with three redundant systems to reduce the risk of equipment failure causing accidents. However, there are only two of the "components" most likely ...
Someone's user avatar
  • 7,117
20 votes
3 answers
6k views

What percentage of airplanes are involved in a crash in their lifetime?

The chances of a commercial flight crash are about 1 in 1,200,000 - pretty low. If each plane makes about 40,000 flights in it's lifetime, about 1 in 30 airplanes will be involved in a crash before it ...
Tim's user avatar
  • 480
22 votes
1 answer
21k views

What is the difference between aviation "accident" and "incident"?

When I hear speaking about aviation crashes, sometimes I hear about "accidents" and other times about "incidents". What distinguishes them? Is there an international standard that determines how ...
Federico's user avatar
  • 32.7k
7 votes
5 answers
14k views

What is the "on condition" concept of aircraft maintenance?

"On-condition" appears to mean that a component should be "fit until failure" or that the maintenance should only be performed upon failure of the component. This seems problematic. Can someone help ...
ra9r's user avatar
  • 289
7 votes
2 answers
9k views

How likely could there be a loss of cabin pressure?

You often on commercial aircraft (whilst on the ground to the runway) hear on the safety video: in the event of a loss of cabin pressure, oxygen marks will be released from the panel .... What ...
cmp's user avatar
  • 821
14 votes
3 answers
2k views

Airline safety: what happened between 1959 and 1962?

The graph on page 17 (PDF page 18) of this Boeing air safety publication shows the fatal accident rate for commercial jets in the US and Canada dropped from about 40 per million departures in 1959 to ...
Mark's user avatar
  • 5,731
10 votes
2 answers
3k views

Statistics: is being a crew on airliners overall roughly as dangerous as driving daily?

The question says it all. It's a commonplace that "airliner travel" for passengers is far and away the safest travel, on almost any metric (per mile, hour, per human-year, etc). However, I'...
Fattie's user avatar
  • 1,978
13 votes
1 answer
901 views

How many of the airliners that ever existed have been lost in flight?

Another way of asking this is: Of all the airliners that have taken off and returned to the earth, what proportion have actually landed? Or another way: If you were born as an airliner, what is the ...
Daniele Procida's user avatar
1 vote
1 answer
1k views

What is the average number of daily flights for all types of aircraft in use worldwide?

I'd like to know how many flights occur on average every day worldwide. This includes all commercial passenger and cargo aircraft, all non-commercial aircraft, private aircraft and military aircraft. ...
garyv440's user avatar
  • 2,187
-5 votes
3 answers
201 views

Amount of fuel consumed [closed]

Airliners have 200 tons of fuel. Assume less than 10 hr flights. An airplane flying all day consumes 4,200 barrels in 3 flights. Us jet fuel consumption is 1.5 million barrels per day. Is it ...
D J Sims's user avatar