Questions tagged [commercial-operations]

Questions pertaining to the operation of aircraft for commercial purposes.

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4
votes
2answers
13k views

What are the differences in door types in a commercial airliner?

I was looking on YouTube at crew training videos. One door caught my attention for a Qantas 767. This door was completely electric and slid up and into the fuselage above, instead of out and to the ...
4
votes
1answer
233 views

Is there a public database for annual flights by aircraft type?

I am doing research about the number of flights and distance flown performed by aircraft types, in a given year. For example: ...
6
votes
2answers
3k views

If both pilots are incapacitated, what happens?

How do the airlines prepare for a situation where for some reason both PIC and SIC are incapacitated for the remainder of the flight?
3
votes
1answer
192 views

Is aviation software translated into the users' native language desirable over English?

I want to build some software containing information about aircraft, like a logbook. Nothing related with avionics. I know that default language in the aviation industry is English, but in the case ...
2
votes
1answer
291 views

How many VHF system can be in MEL for an A340?

How many VHF (Voice Communication) system can be in MEL for A340 aircraft? What are the guidelines to decide that and is it different for aircraft operating under FAR 121, 125 and 135?
11
votes
2answers
14k views

What is the ratio between time in the air and time on ground for an aircraft?

I suppose it may be different from an airline to another. Given the maintenance, the time to load/unload the aircraft, the time the aircraft is grounded because there is no flight scheduled (e.g. at ...
15
votes
7answers
5k views

How dangerous can it be if something falls from a flying aircraft?

How dangerous can it be if something falls from a flying aircraft?
11
votes
2answers
28k views

How many active large commercial airplanes are there?

For example, the 747 Wikipedia page says that 1500 747s were produced (that number seems quite low!). Any indication of how many large, commercial aircraft there are, and what the breakdown between ...
6
votes
2answers
2k views

Is it legal to use RC quadcopters for commercial purposes?

Is it legal to fly a drone with a go pro or something and take photos and video for commercial purposes? This is what I found on the FAA website. All UAS operations for commercial or business ...
19
votes
3answers
5k views

How is the pressure difference in passenger plane toilets generated?

The toilets on passenger planes flush with an impressive amount of force - Is the negative pressure inside the tanks generated by a pump or are the tanks connected to the outside air pressure? ...
15
votes
2answers
2k views

Does the co-pilot still remain in control of the plane if an engine fails during takeoff?

If an engine fails after $V_1$, how long does the copilot remain in control if he was the pilot flying? What is prioritized before the captain taking control of the aircraft?
13
votes
2answers
1k views

Is it possible and effective to perform a forward slip in a large commercial jet?

I'm wondering if it's possible to forward slip a large commercial aircraft, like the A320 or even B777, and if so: is effective or useful, since most small aircraft which I gather do it have no ...
10
votes
2answers
1k views

Are airport employees security checked?

Is your average ramp or store employee at an international airport security checked before they are allowed to enter the gate side area or apron?
29
votes
5answers
35k views

Is passenger weight distribution important on a commercial flight?

This is something I've wondered about for a long time. On really large airplanes, like a 747-400 or A380 for example, I would assume that the weight of the passengers on board is a significant to the ...
21
votes
1answer
14k views

Why open up the window shades before takeoff and landing?

On commercial airlines, I've noticed that the flight attendants always ask everyone to open up their window shades before landing or takeoff. I've always wondered why this is. Is it something to do ...
19
votes
3answers
42k views

What do the terms 'holding out' and 'common carriage' mean?

A pilot with a new commercial certificate is excited at the new world of getting-paid-to-fly they have opened up. That is, until their instructor or good friend reminds them of 14 CFR 119 and the ...
16
votes
1answer
663 views

What is the usage ratio of the An-225 Mriya?

Does anyone have data on how much time the An-225 (only one was produced; it is currently the largest aircraft in the world) spends flying/on missions and how much it waits for customers? This is a ...