this post was submitted on 27 Feb 2024
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You Don’t Need to Use Airplane Mode on Airplanes | Airplane mode hasn't been necessary for nearly 20 years, but the myth persists.::Airplane mode hasn't been necessary for nearly 20 years, but the myth persists.

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[–] [email protected] 196 points 1 year ago (4 children)

You should still set airplane mode when airborne for other reasons besides interference with the aircraft. For one, you'll save your battery. It takes a lot of "juice" for your device to search for cell towers that are likely out of reach. You may also want to avoid connecting to a tower outside where you have coverage. E.g. for a flight from Anchorage to Minneapolis, maybe you don't want to connect to Canadian cell towers and potentially receive charges in another country. Obviously this depends on your plan limits. But, yeah, it's not really about protecting the airplane, in most cases

[–] [email protected] 38 points 1 year ago* (last edited 1 year ago) (1 children)

Here is a video from TED-Ed that explains why. TLDR: phones looking for a signal broadcast on high power, but planes move so fast that you can end up right next to a cell tower so the high power signal can interfere with other phones trying to communicate.

https://youtu.be/iKYHf22qVdM

I disagree with how he phrases a few things, but I think it's mostly accurate.

[–] [email protected] 8 points 1 year ago

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[–] [email protected] 15 points 1 year ago* (last edited 1 year ago) (3 children)

I thought another reason was to avoid blasting everyone* you pass with your phone's maximum power signal while trying to reconnect.

Edit: the problem being interference, not any health effects. I read that the effectively one-way signals from the sky worked somewhat like a jammer.

[–] [email protected] 17 points 1 year ago

Cell phone radiation is negligible

[–] [email protected] 7 points 1 year ago

I don't think even the combined power of all the phones in the plane would be enough to cause interference for anyone

The phone's modem is not powerful enough, it takes a couple watts at most, which is tiiny compared to what a cell tower can output

[–] [email protected] 12 points 1 year ago

Most flights I've been on had outlets and/or USB for charging, I've been leaving airplane mode off for every flight for years now

Come to think of it, I'm pretty sure battery drain is about normal anyways when I don't plug it in, the radio must eventually switch to a lower power lower search frequency at some point. Either that or the tower searching drains your battery thing is about as overblown as the leaving GPS on thing

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[–] [email protected] 100 points 1 year ago (2 children)

If airplane mode really mattered they wouldn't let you even have a device

[–] [email protected] 52 points 1 year ago (2 children)

The idea that plane safety is tied to everyone together agreeing to and remembering to push a button on their devices is absolutely insane. You think that the regulating bodies that require multiple backups for every possible system also just trust that every passenger pushes a button and every flight attendant actually checks every passengers devices?

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[–] [email protected] 7 points 1 year ago (2 children)

That's asinine. It's like saying "If brakes really mattered, a cop would check your brakes before letting you drive to work in the morning". Brakes are pretty damn important, but very few places (in the US at least) have any mechanism for ensuring yours are in working order even periodically.

Proper risk mitigation takes into account (at minimum) the likelihood of an event occuring, the severity of the event occurring, your willingness to tolerate a failure, and the cost associated with implementing corrections.

Airlines have an EXTREMELY low tolerance for any kind of risk that could conceivably lead to a catastrophic failure, so the fact that you're allowed to have a device, despite potential safety concerns, comes from a combination of a few factors:

  1. The chances of some kind of major interference with flight ops happening are demonstrably pretty low
  2. People would likely push back quite hard on not being able to use electronic devices for entertainment on a flight.
  3. Most people comply with the request.
  4. Related to 3, there is little reason for airlines to change the rule, since cell operation is next to impossible in flight anyways, and wifi/bluetooth are not in the frequency range of concern.
[–] [email protected] 25 points 1 year ago* (last edited 1 year ago) (3 children)

Right, with that extremely low tolerance would come an extremely high bar of security.

For example, you can't have lithium in the cargo, and can't have compressed gas or knives in the cabin. And what do we see? They prohibit and screen for those things (to the best of their ability).

They wouldn't let you have a knife if you promised to keep it in your pocket and not use it.

Therefore it is clear that, as the article states, airplane mode is not a significant factor for flight safety. Because if it were, they would lock up phones or have implemented a jammer or some other such adjustment

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[–] [email protected] 90 points 1 year ago (14 children)

Absolutely still turn it on though, or your phone will be pushing it's power to the max screaming for cell towers the whole flight.

But sure if you want to pop it on when you get close to landing, you can usually get a signal that low.

[–] [email protected] 20 points 1 year ago

Not if there is a picocell on board - that's one of the major points of the article, including the EU mandating their installing on flights in Europe to enable people to connect.

However I agree with the airlines that lobbied in the US against this. It's going to be a source of air rage - people crammed in a small space do not want to listen to other people yapping loudly on cell phones or video calls. It's simpler to just ban it outright. Although I am sure the airlines also don't want to have to pay for data connections and their air staff be responsible for dealing with irate customers when the connection is out.

But airlines have already started monetising things by making WiFi available on board flights for a fee - that is already opening the door to calls. I suspect we'll end up with it as standard and a fight against exorbitant charges for connecting imposed by airlines.

[–] [email protected] 9 points 1 year ago

pushing its* power

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[–] [email protected] 70 points 1 year ago (4 children)

I remember once when I accidentally turned on my phone during a flight instantly the plane started to plummet out of the sky. The phone slipped out of my hands and I groped for it while people and service items flailed around the cabin as the plane tumbled. Finally I slipped out of my belt and grabbed it. With only 10,000 feet of altitude to spare, I finally managed to get the phone to go into shutdown mode by holding the power button down. The plane righted itself immediately, and I slipped the phone into my pocket quietly and kept a low profile for the rest of the flight.

[–] [email protected] 27 points 1 year ago (1 children)

I was sitting across the aisle from you and saw the whole thing unfold. To be honest, no harm no foul so you're all good, however I'm just thankful those were the 3G days because with 5G airwaves I'm sure it would have been a faster drop.

[–] [email protected] 15 points 1 year ago

The problem with the 5G phones is that they effect the thought waves of the pilots and put them into a deep dive trance. I can't blame them for wearing those tinfoil hats. Modern aviation is not what they taught in flight school.

[–] [email protected] 11 points 1 year ago

That was close, wow. I really admire your composure in zero gravity.

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[–] [email protected] 65 points 1 year ago (1 children)

It’s not only the myth, is the airplane crew reminding you of that every single flight. Both on takeoff and landing.

[–] [email protected] 10 points 1 year ago

The mentions the reason why; it's to reduce incidents of "air rage". Air travel is stressful enough without having people yapping loudly into their phones.

[–] [email protected] 36 points 1 year ago (3 children)

The most amusing part is that I highly doubt any staff on a commercial flight is capable of telling if people have actually enabled airplane mode or not. It’s an honor system in a country where half of the people don’t even have the decency to try to mitigate the spread of illness.

[–] user1234 16 points 1 year ago

It's not that they don't try to mitigate the spread of illness, it's that they blatantly do the opposite.

[–] [email protected] 14 points 1 year ago

At the end of the day, they just don’t care. If they really wanted to enforce this, there are much more effective solutions.

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[–] [email protected] 36 points 1 year ago (1 children)

I disagree. I don’t see the point of having my phone waste battery searching for a cell signal. Airplane mode saves your battery.

I could just turn my phone off entirely but then I can’t listen to music.

For me it has nothing to do with aircraft safety.

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[–] [email protected] 35 points 1 year ago (1 children)

If Airplanes were that sensitive to RF, terrorists would just be using that to down planes over major cities or during landings at airports.

[–] [email protected] 31 points 1 year ago (4 children)

Aeroplane mode is incredibly, incredibly useful, I use it a lot and I'm almost never on an aeroplane haha.

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[–] [email protected] 28 points 1 year ago (2 children)

Last flight I was on had a no electronics at all rule

A person was told they couldn’t have their kindle out during the flight

[–] [email protected] 12 points 1 year ago (2 children)

fucking hell, I'd think about leaving because having to survive the rabid child always behind me, that guy over there coughing the entire flight, that lady next to me who immediately started snoring, and the bi hourly "buy our perfume" plane wide adnnouncements would be hell without headphones

[–] [email protected] 11 points 1 year ago (1 children)

Simple. Bring a record player. Spin it by hand.

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[–] [email protected] 10 points 1 year ago (1 children)

Name and shame the airline.

I fly a lot for work, internationally most of the time. Haven't seen this in many years.

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[–] [email protected] 19 points 1 year ago

You shouldn't risk it, because no one knows how planes work.

[–] [email protected] 18 points 1 year ago

Everyone should leave airplane mode on whenever and wherever possible.

[–] [email protected] 14 points 1 year ago

Airplane mode isn't for them, its for me having a quiet moment.

[–] [email protected] 14 points 1 year ago (1 children)

Airplane mode is still useful for lots of other things. I'd be pretty upset if the feature was removed.

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[–] [email protected] 13 points 1 year ago

Believe it or not Vodafone will charge you for air and sea usage quite a lot. So be careful if you use them.

[–] [email protected] 12 points 1 year ago

A lot of things are annoying about flying but one of the top is when phones are ringing and beeping unanswered (or worse, answered) non-stop.

I think airplane mode is more for the sanity of the crew than anything having to do with safety any more.

[–] [email protected] 10 points 1 year ago (1 children)

If you have the Steam Deck you should be using Airplane mode. Wifi kills the battery, and as an added bonus - you can use your PC Steam Library and your Steam Deck simultaneously if one is on Airplane Mode.

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[–] [email protected] 10 points 1 year ago (6 children)

How hard is it for someone to go without their damn phone for a flight. Probably can’t connect to towers anyways when you’re up in the air. That business deal or meeting can wait. For once in your life just do what someone else asks of you before taking off and stop bitching. Or drive or take a train.

[–] [email protected] 11 points 1 year ago

Very odd energy.

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[–] [email protected] 9 points 1 year ago (6 children)

Imagine the number of plane crashes if this wasn't the case.

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[–] [email protected] 9 points 1 year ago

I use it at home. Preserves battery.

[–] [email protected] 7 points 1 year ago

This is the best summary I could come up with:


The Federal Aviation Administration (FAA) conducted a study in 2012 that found nearly zero conclusive instances of aircraft disturbances from cell phone usage.

Now keep in mind, federal law requires you to follow the aircraft crew’s instructions, which includes turning on airplane mode.

In 2013, the FCC got a new chairman, Tom Wheeler, who wanted to shake things up by enabling phone calls and data usage on flights.

“Allowing cellphones on planes sounds like the premise of a new reality show: ‘Cage Fighting at 30,000 Feet,’ ” said Oregon Rep. Greg Walden to the Washington Post at the time.

However, regulators and airlines pressured the FCC into keeping the rule in place, out of fear that in-flight phone calls would create chaos in the sky.

Nowadays, you can get wifi on almost any flight for a small fee, allowing you to make voice calls, surf the internet, and play video games.


The original article contains 788 words, the summary contains 150 words. Saved 81%. I'm a bot and I'm open source!

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