Questions tagged [airliner]
An airliner is a large, commercial aircraft operated by an airline for transporting people and/or cargo.
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What department does an airline pilot fall under?
On LinkedIn, I saw on the Page for the Harry Reid International Airport there were charts for 346 members, 157 of them working in Operations, 43 for Administrative, 37 for Business Development, 25 for ...
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How does drag change efficient cruise conditions?
If I have an aircraft, and I reduce the induced drag produced by it, does this mean I should operate it at a higher altitude and faster speed to take advantage of the drop in total drag, or slower at ...
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Do airliners respond to mild turbulence in real time?
I've always been fascinated with the impact of ailerons on an aircraft's trajectory; from what I have seen sitting by a wing is that the slightest movement can bank the aircraft quite significantly.
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What would be the range of a cargo 777 full of usable fuel up to MTOW?
Having read about Rutan's Voyager and more recently about Virgin Atlantic GlobalFlyer
I wondered how would some modern long haul airliner such as a cargo Boeing777 (or other airliner) perform at this ...
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When riding in the flight deck of a large airplane, why does it appear that the airplane moves slowly?
I recently rode in the jumpseat of an A330, and on approach, the visual impression of speed is very different from that of a small airplane or flight simulator.
Specifically, it appears that the ...
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Has an airline passenger ever in some way prevented a crash?
Have there been any incidents in which an airliner would almost certainly have crashed had a passenger not taken some action (most likely telling a flight attendant that something didn't seem right)?
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Why aren't PFDs made as robust as the Integrated Standby Instrument System (ISIS)?
The integrated standby instrument system (ISIS) is a standby instrument used in many large airliners that provides airspeed, altitude, and attitude information to the pilot in the case of electrical ...
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Is an autopilot failure an emergency?
If the autopilot of an airliner fails, but everything else still works, weather conditions are good, and the pilots are able to hand-fly the plane with no problems, is this an emergency? Would they ...
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Can we see evidence of "crabbing" when viewing contrails?
Can we see evidence of "crabbing" when viewing an aircraft leaving a contrail?
Such as, in the form of an angular misalignment between the longitudinal axis of the aircraft (i.e. the ...
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Why do some aircraft's flight control surfaces not droop when hydraulic power is taken away? [duplicate]
Analyzing a bunch of different photos of airliners sitting at Gates, I've noticed that some have flight controls that droop (due to no hydraulic power) and sometimes they stay leveled. Why is this?
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Can someone help me understand this aerofoil?
I came across this morphing aerofoil, but don’t understand how it works please?
Can someone explain also what the components are, like that box in the left?
I looked into that reference, but it’s a ...
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Can a commercial aircraft fly at night with complete navigation and communication equipment failure?
Disclaimer: I know there are numerous redundancies and the complete failure of navigation and communication system may not be possible. Hence, let's approach this question as a pure thought experiment....
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Are landing gear bay doors meant to help high lift devices at producing lift, when gear is extended, regarding airliners?
Watching some video of one Mig-31 taking off, one can see those doors circled in red in the picture sourced from it, are those meant to produce net lift and reduce take off and landing distance/speed? ...
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What causes a jet airliner (with a yaw damper) to roll toward the "weaker" engine during an asymmetrical thrust condition?
Please help me better understand what causes a jet airliner (such as the Boeing 737-500) to roll toward the "weaker" engine when power is reduced on one side.
Such as in the situations ...
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How often do airline pilots actually have to avoid other aircraft that ATC did not tell them about at cruise altitude?
I know any pilot flying in VMC, whether under VFR or IFR, must "see and avoid." How often do airline pilots actually "see" and have to "avoid" other traffic at cruise ...
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Do El Al Israel aircraft have Chaff/Flare dispensers and Radar Warning Receivers?
I have heard that El Al Israel aircraft have missile warning systems and lasers to stop anti-aircraft weapons. Do El Al Israel aircraft have chaff/flare dispensers and Radar Warning Receiver (RWR) too?...
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Why are the trailing edges of wings not always made as 'sharp' as possible?
I noticed that wing trailing edges of new airliners like A220 (CSeries) are not completely sharp. Instead, they are blunt. I always thought that the sharper the better in subsonic flow. What is the ...
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Making sailplane go faster
Sailplanes have much higher L/D than jetliners. But they are three times slower.
Is it practical to make a vanilla sailplane glide at 600mph by lifting it to a ridiculous altitude? If so, what would ...
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Why do the wings in these pictures go from swept back to parallel with the airflow? [duplicate]
To better understand my question, look at this A320 below
As you can see, the wing becomes parallel with the airflow at the wing root. Same thing on this 737
But this is not found on bigger planes ...
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Are airliners designed to land safely with no undercarriage deployed?
Complete undercarriage failure ("belly landing") is very rare in large passenger aircraft, but not unprecedented.
(source)
I would imagine it would be fairly easy to predict which part of ...
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What long-range jet is easiest to fly?
Of jet aircraft with sufficient range to cross the Atlantic on a full tank of fuel, which is easiest to fly?
More specifically:
The required range is from New York's JFK Airport, to Shannon Airport, ...
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Would a Cessna 172 be as safe as an airliner if flown by an airline pilot?
I know that general-aviation flight is much more dangerous than airline flight. Is this because of the planes or the pilots? If an airline pilot is flying a Cessna 172, is that Cessna as safe as an ...
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COMAC C919 engine
COMAC C919 has been dubbed as one of the biggest successes in the Chinese aviation industry as this is the first narrow-body airliner capable of long-distance flight. This is important for China as ...
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What odd maneuver is this for a cruising airplane?
Several years ago, I saw a set 4-5 of con-trails converging at nearly the same time and height. They were each executing large turns (90 to 300 degrees) over the same space, starting from various ...
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What is considered a positive rate?
I'm a beginner pilot, and i am trying to perfect my takeoff. What vertical speed is considered a positive rate in a Boeing 747?
Thanks in Advance
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How exactly does the cabin pressure of an airliner change during ascent and descent?
At cruise altitude, airliners' cabin altitudes are usually at 6000-8000 ft, but how and when does it get there respectively how does it behave from ground until cruise altitude?
Is the cabin ...
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Safety factor in airliner design
I am currently working on a baseline configuration and initial sizing for a conventional airliner with 90 passengers.
The FAA states that an average passenger weighs approx. 80kg. When calculating my ...
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Could a F-22's exhaust stall a highjacked Boeing 767's turbofan(s) and force it to land?
Would it be possible to use a F-22's exhaust to intentionally stall a hijacked Boeing 767's turbofan engines in order to force it to land instead of shooting it down?
The idea being that stalling one ...
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Are dual input situations for major aircraft quite unusual?
Why would the Captain and Co-pilot both need to control the plane at the same time in normal operations? The only time that I could think of one is manually flying and doing complex maneuvering and ...
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Why is waste water from lavatory sinks dumped outside in mid-flight?
I learned that the waste water from the lavatory sink in most commercial airliners is dumped outside the aircraft while in flight. Is this really the case? If so, why is the waste water dumped outside ...
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Under which circumstances were 727s or 737s used for long-haul flights?
I've been intrigued by the occasional picture of a 727 crossing the Atlantic, like this Air France in Miami from the late 1960s. Under which circumstances would such narrow-body aircrafts (most ...
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What jet is pictured on the FAA pilot certificate?
The front of the FAA pilot certificate shows two aircraft. One is the Wright Flyer. The other appears to be a 2 or 3 engine commercial jet. What model of aircraft is that jet? The engines look ...
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Why increase chord length for supersonic aircraft (swept vs delta wings)?
TL/DR
For supersonic transport and a given sweep angle, why are delta wings used instead of swept wings? If you write the drag equations, a sweep of $55^{\circ}$ seems sufficient with no modification ...
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If you are in a terrain escape maneuver, would you be able to see traffic above you displayed in the cockpit of airliners [closed]
nayed
If you are in a terrain escape maneuver, would you be able to see traffic above you in the cockpit of big airliners
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A very loud, short- lived howl
Within the last eighteen months, I'd say - commercial aircraft descending into Heathrow have started to emit a terrifying, short-lived but very loud whining howl when they pass over my house. They are ...
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Why is this commercial plane making this manoeuvre?
The plane going in circles above my head for an hour now, what could it be?
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Can flaps on Airbus/Boeing airliners be deployed at high speeds during cruise, still?
Brief Background of the Incident
Mayday Season 22 Features an Episode "Terror over Michigan" (Episode 6) based on the events of TWA Flight 841. The Episode revolves around a Boeing 727 ...
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What specific improvements were made in supercritical airfoil design from 1980 - 2000?
I originally asked a question (Comparisons between the A340 and 747-200 wing: sweep angle and span) about the technological developments which allowed the Airbus A340 to have a wing with greater ...
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What naca airfoil is the closest to airfoils used by modern airliners?
I know boeing and airbus use propietary airfoils, but is there a single naca airfoil that is fairly representative of what modern airliners use?
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What kind of feedback is this?
i found this link that shows a united airlines intercom feeding back and i was just wondering how typical is this on these flights?? i’ve never heard feedback come back frequently every time the ...
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Would it be possible for one airliner to tow another?
Comedian/podcaster/QI elf Dan Schreiber asked on Twitter, as proxy for his 4-year old
if it would ever be possible to hook a plane (like a 737) onto the back of another plane, like a train carriage, ...
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Planform Area of Commercial Passenger Airplanes
I am trying to retrieve information on the total area constantly covered by commercial passenger airplanes in flight (that is, airborne planes, not planes on the ground).
To this end, I've been trying ...
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What is the operating altitude of jetliners?
I am performing a science project, and this involves knowing the average operating altitude at which commercial passenger airplanes (jetliners) fly.
I am trying to find minimum operating altitudes and ...
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Regaining airworthiness of a commercial aircraft
If a large commercial part 121 aircraft has lost it's airworthiness, and remained in that state for several months while being operated despite the loss of the airworthiness, what inspections and ...
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Can airliners take off, cruise and land while unpressurized?
I'm wondering if the pressurization of the cabin has a part to play in the structural integrity of the fuselage, the same way an unopened soda bottle is stiffer compared to one that's open.
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Do airline pilots really put on an oxygen mask when alone in the cockpit above 25,000 ft?
The FAA requires a pilot to put on the oxygen mask if the other pilot leaves cockpit when cruising above FL250. It also requires that one pilot always wears an oxygen mask when flying above FL410. Do ...
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How is airliner pressurization being coped with at high altitude airports? [duplicate]
Cabin altitude in a passenger airliner must not become more than 8,000 ft, but what if an airliner flies to or from an airport at a higher elevation, such as Quito and La Paz? How is onboard pressure ...
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Does the 737 have a higher aspect ratio than most later 7X7's?
In this video:
The Insane Engineering of the 787
there's a chart (at around 10:40 in) which shows that the 737 (which series?) has an aspect ratio of over 9, while the 747, 757, 767 and 777 rise from ...
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Would an airliner climb higher late in the flight because of the consumed fuel (lighter airplane) to save more fuel?
Some people said airplanes would fly higher in the late period of each flight, because the fuel is consumed, and the airplane is lighter. Higher altitude and less dense air is enough to support the ...
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Why do white marks on the spinners in front of engines have different patterns? Not Yellow? Omitted for some models?
In aeroailas' answer I understand that the cones in front of the props/fans are called spinners.
In Farhan's answer I understand that the ehite marks painted onto the spinners act less as scarecrows ...
