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Questions tagged [safety]

Safety includes all aspects of protecting aircraft, passengers and crew from accidents, mistakes and other potentially dangerous situations.

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2
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3answers
366 views

Are there any real life instances of aircraft aborting a landing to avoid a vehicle?

I came across a video of an A380 closely avoiding a fuel truck. More details at Snopes including a link to the YouTube video. While this video is not real, I'm interested in finding out if it's a ...
41
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5answers
79k views

How much is the minimum safe distance between two planes in-flight?

According to FAA regulations, how far should a commercial jet be away from another plane in-flight? How about military planes? They get really close when in formations... Is there a minimum distance?
31
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3answers
8k views

Why was a flight delayed because of a bird in the cockpit?

This Washington Post article is about a Delta Airlines flight that took off after an initial delay, before turning back again shortly after, because of a bird that managed to stowaway in the cockpit. ...
21
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1answer
3k views

How short does a trip need to be before flying is less safe than other forms of transportation?

It's often mentioned that flying is the safest form of transportation, and no doubt this is true when considering only a long-haul trip. There's no doubt, for example, that driving (or taking a train ...
1
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1answer
128 views

How long is maximum time to investigate an airplane crash?

Lion Air flight 610 was crashed on 29 October 2018. It was Boeing 373 Max 8. Almost one year ago. I have not heard any news from National Transportation Safety Committee (NTSC) when they will release ...
4
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2answers
84 views

How can the effects of hot corrosion and salt deposits from sea water spray in gas turbine engines be negated/prevented?

In aircraft operating in a maritime environment, corrosive effects from salt water are common. Are there any specific coatings used in engines for such aircraft? If so, which are they? How frequently ...
4
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1answer
177 views

Are there any safety features to prevent reversible-pitch props from reversing in flight?

Some aircraft have propellers capable of reversing pitch, which is also known as beta angle. The example I saw was an Aviat Husky. (Youtube demonstration) I want to know if there are any safety ...
13
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1answer
5k views

Why does Canada recommend a minimum rate of climb for ultralights of 300 ft/min?

What is a safe minimum rate of climb for ultralights? I understand most ultralights climb at least 300-800 ft/min and in fact the Canadian ultralight specs recommend a minimum rate of climb of 300 ft/...
10
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2answers
786 views

What if a aerobatic fighter pilot sneezes in middle of a maneuver?

No offense to any pilots, I am a student, curious. I just watched Spy (2015) and I was just wondering what happens if one of the pilot accidentally sneezes during a difficult maneuver. Jude Law ...
9
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2answers
2k views

How often does fan blade out happen?

Jet engines are designed to contain a fan blade failure, and the engines and airplanes are designed with this type of failure in mind. This is more critical in the modern high-bypass designs with ...
4
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1answer
173 views

Where does the 90 seconds limit for plane evacuation come from?

New airplanes have to confirm that all passengers have to be evacuated within 90 seconds or they wouldn't be certified by aviation authorities. But where does the 90 seconds limit come from? Why isn't ...
10
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3answers
793 views

What is the longest period of time an aircraft type has been grounded due to safety concerns?

Obviously inspired by the current 737 Max situation, what is the longest period of time that any individual type of airliner has been grounded for safety concerns (excluding those that never returned ...
7
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4answers
316 views

What accidents have had crew accustomization to warnings among their causes?

A non-answer on this question claimed that: the idea that maneuvering with the stall warning activated will somehow damage us, causing us to ignore its warning when the chips are down and AOA is up,...
9
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8answers
12k views

Can rotorcraft pick up a dangerous electric charge?

So, I was re-watching The Hunt For Red October, (in light of current Russian shenanigans with Sweden), and there was a scene in which a crew-member on the ground was electrocuted by making contact (...
8
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4answers
1k views

Which altitudes are safest for VFR? [closed]

As a fairly new pilot who does a fair amount of x-country flying I find myself "feeling" safer going East at 5500 and West at 6500 happily burning extra fuel to get up there. Listening to the on route ...
12
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1answer
2k views

What are the regulations involved in aerial advertising?

I often see small aircraft flying at a low altitude around beaches and the like with banner advertisements trailing behind them on a rope sort of structure. I have a few questions about them: What ...
10
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3answers
2k views

Why did this 737 not take off on first attempt?

This video shows a 737 'near miss' takeoff. I'm curious as to why the aircraft did not take off as expected, i.e. is there anything obvious from the video? I'm ...
1
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3answers
199 views

Is it safe to fly with a B737-800? Is it different from a B737 Max 8? [duplicate]

I'm flying from Costa Rica to Chile in November with a B737-800 plane. I'm wondering if this is a different aircraft than the B737 Max 8 or if it's the same?
3
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3answers
439 views

Is it possible to hack an airplane while it's moving (in general)?

I recently searching Airbus Careers section, and I can say that I saw too many Cyber Security job positions. It was saying in the job description that there is a need of having knowledge about ...
11
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2answers
343 views

What are the ejection injury and fatality rates?

Most of us have probably heard about how ejecting from a military aircraft is dangerous in and of itself, and that ejection is not a get out of jail free card. The most common dangers seem to be: ...
0
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0answers
80 views

Why does not jet engines have a metal grid in the front? [duplicate]

An aircraft engine can get destroyed if a large object - like birds - enters it while running. I'm probably naive, but this seems pretty easy to solve. Why not just have some kind of metal grid in ...
8
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1answer
3k views

Can passengers use headphones during takeoff and landing?

On a recent flight from KBP to KIV operated by Ukraine International Airlines (aircraft B737-800) I was asked by the flight attendant to remove my headphones both during takeoff and landing. Is ...
50
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3answers
10k views

How dissimilar are redundant flight control computers?

Facts On Airbus aircraft there are computers to secure the flight envelope, or to move the control surfaces. FADECs totally control the engines. Computers take decisions in place of the pilots, or ...
2
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3answers
896 views

Why is this video of a G36 Bonanza taking off so scary?

Why is this video of a G36 Bonanza so 'scary'? If they had clipped the top of the trees, would it really have brought the plane down? (And even if yes, it looks pretty ...
5
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1answer
213 views

Why do they tell you to tie your lifevest on the left side during safety briefings?

This might be UK specific, given I have only been flying internally recently. During the safety briefings, when describing how to inflate the lifevest the instructions are always: "Wrap the lines ...
3
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0answers
92 views

How fast is it safe to eject from an F-16? [duplicate]

What is the limit of the ACES II for the F-16, in terms of altitude and airspeed for safe ejection? The following video tells the story of an F-15 pilot who ejected at supersonic speed and barely ...
13
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2answers
1k views

Was there a design flaw in the fuel tanks of the MiG-15/17/19/21?

Wikipedia article on MiG-15: Another major design deficit was that the tank could develop under-pressure if more than half the fuel had been used, which could easily lead to tank implosions, ...
5
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1answer
522 views

Is this WWI movie scene realistic?

In a poignant scene of 1933 WWI film The Eagle and the Hawk (not to be confused with the same-name 1950 western film), while the pilot played by Fredric March performs a loop-the-loop in his – I ...
4
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1answer
168 views

Why do some U.S. airlines require passenger headrests to be lowered during takeoff?

I've experienced a few times recently where cabin crew have asked passengers to lower their adjustable headrests during takeoff and landing and, in at least one case, it was even part of the pre-...
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0answers
35 views

Are the Australian NASF guidelines based on ICAO standards?

Here in Australia we have a set of regulations called the "National Airports Safeguarding Framework" (NASF); these consist of 9 federally imposed guidelines for: Measures for Managing Impacts of ...
27
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4answers
15k views

Why didn’t the Captain of Cathay Pacific flight 780 shut down engine 1 and land with a more reasonable speed?

In the approach phase, engine 1 of Cathay Pacific flight 780 got stuck at about 70% N1 and it forced the crew to do an overspeed landing (230knots). Why didn't they shut it off by turning the fuel ...
3
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1answer
233 views

Why aren't any jet fuels heavier than Jet A/A-1/JP-8 in common use?

The commonly-used jet fuels fall into two main categories: Straight kerosenes (Jet A, Jet A-1, JP-8, JP-5, plus, historically, JP-1), which are used in most situations because their high flashpoints ...
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0answers
117 views

Aeroplane protection against lightning strikes [duplicate]

I would like to know what kind of protection are available on planes against lightning strikes.
21
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7answers
7k views

Can two aircraft be allowed to stay on the same runway at the same time?

My understanding is that the runway should always be cleared, and occupied by no more than a single aircraft for takeoff and/or landing at any given time. Is there any scenario in which ATC can ...
6
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1answer
962 views

Was John F. Kennedy Jr.’s accident airplane equipped with an autopilot?

JFK Jr.’s crash was attributed to failure to maintain control due to spatial disorientation. Could this be explained by his Piper Saratoga N9253N having no autopilot?
7
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3answers
665 views

Do some flying techniques wear aircraft out quicker than others?

In the 2012 film Flight, the cause of the mechanical failure is a sort of worm-screw that controls the rear tailplane. And I believe that in real life failures in those devices have been implicated in ...
2
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1answer
2k views

What is the requirement for fire fighting equipment on board a passenger flight?

What is the legal requirement regarding fire fighting equipment on a passenger flight, e.g. fire extinguishers and fire hoods? I imagine that the number is proportional to the airplane's max capacity. ...
4
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4answers
221 views

For calculating $V_{stall}$, why should be used $C_{L,max}$ and not $C_{L,min}$ (that would be more prudent)?

Premise: In level unaccelerated flight we have relation $W=L=\frac{1}{2}\cdot\rho\cdot V_{stall}^2\cdot S\cdot C_{L,max}$ (taken from book Daniel P Raymer "Aircraft Design: A Conceptual Approach" ...
1
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1answer
70 views

What is the most critical data to measure for a predictive maintenance model for a drone? [closed]

I'm looking at making a predictive maintenance model for a drone (quadcopter mainly but can include others) I'm wondering what is the most common causes of failure due to "overflying". (not including ...
11
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4answers
2k views

Can we eliminate the center tank of large passenger planes?

This is a safety question about fuel and fires. This all regards commercial aviation for large passenger planes. Most fuel is stored in the wings, but in the largest planes, there's also a center ...
11
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2answers
3k views

Is it allowed and safe to carry a passenger / non-pilot in the front seat of a small general aviation airplane?

Is there anything wrong with taking a friend in the copilot's seat of a small general aviation aircraft with me flying, or does he have to sit in the back (if there is one)?
30
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5answers
9k views

Why are passenger seats not facing backward on an airplane?

In the event of a crash, facing backward sounds much safer: Forces are applied on a much larger surface (your whole back is in contact with the seats, instead of just a seatbelt and maybe the ...
2
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3answers
1k views

Which is safer? The Piper Tomahawk or the Cessna 152?

I have booked my first flying lesson for 2 weeks time, in my first step to obtain a PPL or LAPL. I had done all of my research on the Cessna family, assuming that is what I would learn in. I was ...
9
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3answers
446 views

Is it common for automated control systems to use non-redundant sensors?

While reading an article about the Lion Air Crash with a Boing 737 Max 8, I was very surprised by the following paragraph: In designing the 737 Max, Boeing decided to feed M.C.A.S. with data from ...
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2answers
208 views

Is “hacking small planes” a separate or larger problem from/than general small-aircraft security?

Apparently the DHS has issued a "hacking alert" for small aircraft: The alert warns if a hacker gained physical access to certain small planes, they could attach a common device to its wiring. This ...
6
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2answers
5k views

How many bird strikes are there per year? Any world-wide statistics?

Does anyone know where I could find where the highest rates of bird strikes are? Along the same lines, other wildlife, such as moose or bears on runways?
1
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1answer
289 views

Is this plane safe to fly on? The turbine blades look damaged [closed]

While waiting for a recent flight, I observed this aircraft with what appear to be rather worn turbine blades. Is this close to being a safety issue or is it purely cosmetic?
5
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1answer
298 views

One man push-back

Towbarless pushback operation of a passenger aircraft is generally done with at least 2 people. The first person (walk-out assistant) communicates with the cockpit crew members and observes the ...
2
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0answers
161 views

Do visual docking systems improve safety?

Are there any studies that shows A-VDGS (Advanced Visual Docking Guidance System) is improving the safety of aircraft movements on airports?
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10answers
13k views

What would be the safest way to drop thousands of small, hard objects from a typical, high wing, GA airplane?

The subject pretty much states my question, now I will provide a bit of background. A family member, who lived on the west coast of Florida Manasota Key, collected tens of thousands of fossilized ...