Have you ever been told to turn your cell phone to “airplane mode” during a flight? It’s a common request made by flight attendants, but have you ever stopped to wonder why it’s necessary? The truth is, modern aircraft are not at all affected by the use of cell phones onboard.

Many people believe that the use of cell phones can interfere with the aircraft’s navigation and communication systems, leading to potential accidents. However, this belief is based on outdated information and a lack of understanding about how modern aircraft are designed.

First, it’s important to understand that all electronic devices, including cell phones, emit electromagnetic waves. These waves can potentially interfere with the electronic systems of an aircraft if they operate on the same frequency. However, the Federal Communications Commission (FCC) has strict regulations in place to ensure that electronic devices do not operate on the same frequencies as aircraft systems.

In addition, most modern aircraft are equipped with shielded wiring and other protective measures to prevent any outside electromagnetic interference. The cockpit, in particular, is heavily shielded to protect against any potential disruptions.

So, if modern aircraft are not at all affected by cell phones, why do flight attendants still ask passengers to turn their phones to “airplane mode”? The answer is simple: it’s a precautionary measure.

While it is highly unlikely that the use of a cell phone on an aircraft will cause any issues, airlines prefer to err on the side of caution. The request to turn phones to “airplane mode” is primarily for the comfort and convenience of the passengers.

It’s worth noting that while the use of cell phones on an aircraft is not a safety concern, there are still some limitations in place. The FCC prohibits the use of cell phones for voice communication while in flight, due to the potential for disruption to ground-based cellular networks. However, you are still able to use your phone in “airplane mode” for other functions, such as texting and using apps.

The belief that cell phones can interfere with modern aircraft is a misconception. While it is still a common request to turn your phone to “airplane mode,” it is not necessary for the safety or operation of the aircraft.