Questions tagged [safety]

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

Filter by
Sorted by
Tagged with
1
vote
2answers
274 views

What is the maximum momentary G force that a modern airliner's wing can take before it snaps in extreme turbulence?

Taken from an aviation safety pdf.. Intensity - LIGHT - Vertical acceleration (g) 0.20-0.49 - Derived Gust (fpm) 300 -1,199 Intensity - MODERATE - Vertical acceleration (g) 0.50-0.99 - Derived Gust (...
-5
votes
1answer
164 views

Why didn't the airlines try to start copying SpaceX by putting camera on the outer body of the airplane? [closed]

This week my country Indonesia just had an Airplane crash accident Sriwijaya Air SJ182. I'm getting sick with people speculating why or how the plane crashed. Well, we can wait for the black box ...
17
votes
5answers
6k views

Why aren't "fuel polishing" systems removing water & ice from fuel in aircraft, like in cruising yachts?

Should you sump fuel tanks when the fuel system is below freezing? the question should one sump fuel-tanks before flying, if in freezing-conditions? but this implies another question that boggles me:...
6
votes
3answers
2k views

People say that modern airliners are more resilient to turbulence, but I see that a 707 and a 787 still have the same G-rating. Why is this?

The 707 was introduced in the late 50's, the 787 in 2009. Back when Air France 447 had recently gone missing, many were speculating that the aircraft had broken up in the turbulence associated with ...
-5
votes
2answers
192 views

How dangerous are tailwind gusts for STOL aircraft?

If I fly close to stall speed with a STOL plane and gust of 20kts tailwind comes at me,it will cause sudden reduction in lift ,becuase plane has inertia so it can not accelerate instantly. How ...
5
votes
1answer
152 views

How can I tell if a rental aircraft has been maintained in good condition?

When I rent a Cessna (typically old) from the local airport, how concerned should I be that the plane may have been abused at some points over many years (over-load forces, hard landings, over-rev'd ...
8
votes
5answers
4k views

How much do you have to respect checklist order?

In a fighter aircraft, if the checklist says turn on the radar then turn on the Heads Down Display, and the pilot turns on the HDD first would he be reprimanded for that if it makes no difference? Is ...
-2
votes
4answers
266 views

Why can't we use bleed air instead of oxygen cylinders? [closed]

When cabin is depressurized due to some or the other reason then we usually have oxygen generators in airplane and they last for 12 minutes. It is very shot in usual terms but it is enough to descend ...
2
votes
2answers
247 views

Reason why heavy aircraft are allowed to land but not to start

I stumbled upon this article (German) It says that a few of Lufthansas 747 are grounded at Twente airport. They were parked there because of COVID-19 at an aircraft recycling company. Now the airport ...
0
votes
0answers
42 views

What are the safety events definitons for Flight Operations Quality Assurance (FOQA)?

I am searching the definition and parameters of safety events which are used in Flight Operations Quality Assurance (FOQA). I tried searching by myself but I can't find anything valuable. Are this ...
0
votes
1answer
103 views

Are there any characteristics of a hypoxic flight? [closed]

Any patterns that investigators look for? For example, what happens when the engine flames out? is it guaranteed to enter a high speed dive? And would this affect certain parts of the aircraft, ...
11
votes
1answer
203 views

Is there a standard for required repainting of worn runway markings? In USA

Is there an FAA regulation or advisory circular covering the allowable wear, fading, or weathering of runway markings? I can find many FAA standards for the paint of fresh new runway markings, but I ...
2
votes
1answer
153 views

I have an idea about how to resolve a conflict between the pilots and an automated flight control system. Does it make sense? [closed]

I am thinking about the 737-MAX crashes. There is a similar question at Is it common for automated control systems to use non-redundant sensors? There was an article in yesterday's Seattle Times In ...
5
votes
1answer
214 views

Is it normal that an ELT activates during a strong up draft in flight?

I was flying a PA 28 181 Archer on a nice clear day at cruise speed level flight 3000ft. Suddenly, from nowhere it was hit by an up draft that lasted I would say less than a second. I got pain in my ...
0
votes
2answers
124 views

What is the best time to run runway friction tests? [closed]

When is the best time to run runway friction tests? And what is the optimum temperature to run them?
2
votes
3answers
349 views

Do pilots of commercial aircraft have ready access to a map or data showing nearest airports in case of a need to make an emergency landing?

As a passenger I often wonder that if a pilot had to make an emergency landing, do they have access to live information to direct them to the nearest airport or is this something that they have to ...
4
votes
1answer
429 views

Is there a reason that commercial jets do not have a “dead man’s switch”?

Following high-profile cases of disappearances such as MH370, as well as the lower-profile but no doubt common radar infringement and level / airspace busts that we don’t hear about often, is there a ...
10
votes
4answers
3k views

Isn't it dangerous for a soldier to sit on the outside of a flying helicopter?

AH-64 during an extraction exercise at Camp Bondsteel, Kosovo in 2007 with a soldier on the avionics bay. I lit upon this image on Wikipedia. I see that the soldier is harnessed fastened to the ...
0
votes
2answers
114 views

What is the name of Control equipment? [closed]

I wanted to know the name of equipment that controls the control surfaces of an aircraft by taking commands from the pilot through it's hotas stick. The aircraft could be a combat 50's or 60's a/c, so ...
-5
votes
1answer
107 views

How will LiFi application in an aircraft change the security of an air travel? [closed]

In a near future, LiFi technology will replace WiFi in a commercial aircraft. LiFi will make nonstop internet service possible. This will generate some new issues in air travel security. Especially ...
1
vote
0answers
142 views

Can a modern airliner handle turbulence forces of +5/-3G?

In the BOAC Flight 911 accident the 707 likely experienced around positive 5G and negative 2-3G. The wings of the 707 were only about as 50% as flexible as the wings of airliners today. How would a ...
3
votes
3answers
610 views

How safe are extreme aerobatic flights?

Statistically, how safe are extreme aerobatics flights like this one?
26
votes
1answer
5k views

Are there any drawbacks to requesting progressive taxi every time?

Unless you know the airport like your own backyard, it seems like requesting progressive taxi would always be the safest option to essentially eliminate the possibility of taking a wrong turn or ...
51
votes
3answers
12k views

The F-16s that were scrambled to intercept United 93 did not have time to arm the jets, so the pilots were going to “ram it” how does that work?

The Wikipedia page says Two F-16 fighter pilots from the 121st Fighter Squadron of the D.C. Air National Guard, Marc Sasseville and Heather "Lucky" Penney, were scrambled and ordered to ...
16
votes
2answers
2k views

Have any airliners successfully landed on a runway after striking a tree?

There are many examples of aircraft striking trees during a crash sequence, usually with high fatality rates. Have any airliners struck* one or more trees and proceeded to successfully land on a ...
3
votes
3answers
355 views

Shouldn't the instructor in this scenario try to avoid a deadstick landing? [closed]

In the Netflix drama "The Crown" (season 1, episode 4) Prince Philip has flight lessons with Group Captain Townsend (below is an image of that scene, I was unable to identify the plane). ...
2
votes
1answer
180 views

What is a "Standard visual inspection"?

Passengers injured as US fighter jet comes close to Iranian plane The Iranian plane, belonging to Mahan Air, was heading from Tehran to Beirut on Thursday when the pilot staged a safety manoeuver, in ...
1
vote
1answer
98 views

What safety precautions are taken for an airline prototype test flight?

Regarding the software, the equipment and the personnel. Can the crew jump out of the plane with parachutes or is it a bad idea? Additionally, if you would compare the safety of today and the 1970/80s ...
2
votes
2answers
145 views

Can I safely plug something that draws 6 amps into the cigar lighter (power port) in my Piper Archer lll?

Can I safely plug something that draws 6 amps into the cigar lighter (power port) in my Piper Archer lll ?
0
votes
1answer
172 views

Why haven't airlines added safety pads to their carts? [closed]

I chanced upon this question at 5:11 of this YouTube video. Their answer is "no idea". A cynic would answer profit motive, for it costs money to add safety pads to all these carts and ...
2
votes
4answers
475 views

Can an airline lay off its flight attendants and use pilots to fill the role?

IcelandAir recently announced that it will be laying off its entire flight attendant staff, and plans to have pilots fill the role in the meantime. Can an airline lay off its flight attendants and ...
10
votes
1answer
1k views

How safe are commercial airliners from gallium infiltration?

I recently saw a video on gallium infiltration on YouTube. Gallium is a metal with a melting point somewhere between standard room temperature and human body temperature, meaning if you pick up a ...
1
vote
1answer
478 views

Can Airbus A320 doors be opened mid-flight?

Today I learned how airliner doors are typically an outward facing plug and cabin pressure would make them nearly impossible to open mid-flight. It's easy enough to see that for the shape of Boeing ...
13
votes
2answers
4k views

How can pilots differentiate runways and taxiways during landing?

There have been many incidents where pilots landed or attempted to land the aircraft on a wrong surface (for example Continental 1883 and Air Canada 759). Are there any tips for pilots to avoid that? ...
15
votes
5answers
6k views

Are planes allowed to fly in circles, and is there a minimum legal altitude for takeoff and landing?

I live near a small, possibly private, airport. Every day there are small planes flying low over the neighborhood in circles for over half an hour. They appear to just be flying for recreational ...
2
votes
1answer
99 views

What is meant by these criteria for a stabilized approach? [closed]

Based on regulation, there are several criteria for when an approach is stabilized. I want to ask: Only small changes in heading/pitch. How small? The aircraft is in correct landing configuration. ...
12
votes
1answer
286 views

What year did the seat belt sign come in to use?

What year did commercial airlines start using a lighted seat belt sign?
0
votes
2answers
245 views

Does the payload of an ICBM or regular airplane bomber explode if the ICBM or bomber is shot down?

As the top says, does the payload of an ICBM or regular airplane bomber (please excuse my ignorance) explode if the ICBM or bomber is shot down? So, say a defense laser in space (yes, I know; this is ...
20
votes
2answers
3k views

Would deploying the Space Shuttle's landing gear early have improved safety? [duplicate]

Due to the space shuttle orbiter’s high weight (potentially up to 110 tonnes [121 short tons] in certain abort scenarios, although nominally around 85 tonnes [94 short tons]) and abysmal subsonic ...
0
votes
2answers
168 views

Was flying a helicopter below building height against FAA regulations? [duplicate]

I'm referring to this incident: https://twitter.com/Dacheslow/status/1267638389421072384 Some people were saying it was illegal under FAA rules to fly that low and close to a crowd, and also to use a ...
8
votes
1answer
1k views

Could a landing gear jettison mechanism be practical when ditching?

Reading this answer about GA aircraft ditching, I wondered if, considering conventional fixed landing gear aircraft (taildraggers) which often operate overwater, having the ability to jettison the ...
1
vote
1answer
244 views

Does the jet blast from a large aircraft pose any risk for other aircraft nearby?

We know that the jet blast of jetliners - A320, B737 and bigger - are dangerous for people passing by, airport vehicles and even small planes, and we must always maintain a huge distance to avoid ...
24
votes
3answers
3k views

Is it recommended to get a life raft for short overwater operations?

I'd like to fly to Santa Catalina Island (AVX) from the mainland around Los Angeles. There is a portion of this overwater flight where my Cessna 172 will be beyond gliding distance from land. I know ...
1
vote
0answers
89 views

Why is crushable-block EMAS the only overrunning-aircraft-stopping system in wide civilian use?

Because runway overruns often end badly, and many runway ends (especially older ones) don’t have enough clear space available beyond the runway end for a full-size runway safety area (RSA), EMAS has ...
2
votes
0answers
199 views

Why do so few non-US runways have EMAS beds?

As occurrences of an aircraft running off the end of the runway and hitting things tend to leave both the aircraft and whatever it hits rather the worse for wear, much effort over the years has gone ...
6
votes
1answer
556 views

Why does an A300/310 in LAND or GO-AROUND mode have to be at least 400 feet AGL for manual control column movement to disengage the autopilot?

Each of the A300/310’s two autopilots has two modes of operation: In CWS (Control-Wheel Steering) mode, the autopilot(s) attempt to hold the attitude that the aircraft had at the moment of autopilot ...
23
votes
2answers
7k views

Is it true that cockpit doors are bulletproof?

I read about 9/11 and read somewhere that after 9/11 all aircraft cockpit doors were replaced with bulletproof ones. Is this true?
1
vote
1answer
269 views

Why don’t flying-boom tankers have collapsible/frangible/breakaway refuelling booms?

There are two main types of aerial-refuelling systems in use today: Probe-and-drogue systems reel out a hose behind the tanker, terminating with a soft conical canvas bucket; the pilot of the ...
1
vote
0answers
78 views

How big does an object in one of the ILS critical areas have to be to cause a problem?

ILS installations have a critical area extending some distance back from the glideslope antenna (primarily due to most glideslope transmitters’ needing to bounce one of their two beams off the ground ...
26
votes
3answers
15k views

Why is this airplane flying in circles randomly?

This G650 has been flying around for over an hour now. Is this somebody with a mechanical problem who is burning fuel before returning to their airport of origin?

1
2
3 4 5
21