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pythagoras's avatar

I mostly agree that many of the regulations are ridiculous, but I'm going to stand up for requiring tray tables to be stowed for takeoff and landing. I'm perhaps somewhat colored on the issue as a former airline pilot, but as you've hinted, the purpose of the regulation is to allow a quick evacuation. A survivable incident on takeoff or landing is often followed by an ugly fire that burns fast and hot. The FAA quite sensibly requires that aircraft manufacturers demonstrate that their aircraft can be evacuated in 90 seconds and this affects the design of everything from the seatbelts to the seats and the aisles.

Note that unless you're in a window seat, this isn't just a matter of your safety, but those in your row as well. If you're sitting in an aisle seat with your tray table down and your carry-on bag blocking my exit, you've needlessly endangered my life. The cost-benefit calculation is worthwhile but tricky: it costs you almost nothing to put up your tray table for a very small possibility of other people on the plane not dying a horrible death in a fire. I have no idea how to run such a calculation, but I'm sure you as an economist do. I'd love to see an impartial attempt at such an analysis.

Note that even in today's quite safe environment, fires do happen: https://en.wikipedia.org/wiki/Asiana_Airlines_Flight_214 I'm not sure they happen often enough for market forces to result in (a) aircraft that are designed to be evacuated in a reasonable amount of time, or (b) airlines to adopt a range of safety protocols that enable customers to make informed purchasing decisions on the basis of safety.

Airline travel is incredibly safe, but I attribute this almost exclusively to the harsh regulatory environment in which they operate. I don't have a lot of data here, but I do have some anecdotal data from my own career. I worked for a regional airline that constantly tried to cut corners in every department from crew training, to crew scheduling to maintenance. On multiple occasions I had to take a stance about not operating a flight in such a way that would violate FAA regulations. If I didn't have the backing of federal regulations (that in fact held me personally accountable as well as my employer), it's clear that I would have been fired. A typical instance is crew rest and my obligation to refuse flight assignments in violation of regulations which were *regularly* attempted by my airline in response to delays.

Random other notes: stowing your items for takeoff is also about more than evacuation safety. The laptop you'd like to have on your lap is going to depart violently for the front of the plane when a rejected takeoff results in maximum braking at 140mph. Chances are good it's going to hit someone when it does. I'm pretty sure you have no idea how quickly an aircraft going 140mph can decelerate, but the answer is fast.

Leaving your window shades open for takeoff and landing is about being able to see outside in order to know that you don't want to evacuate into a wing that's full of jet fuel and on fire.

That said, the TSA's regulations are absurd and clearly fail the most obvious cost/benefit analysis. The 9/11 hijacking problem was solved in half an hour with simple education. The impenetrable kevlar cockpit doors were a fantastic investment and finished solving the problem. Subjecting passengers to ionizing radiation, making them remove their shoes, taking away their shampoo and making them show proof of identification is all nonsense that should be stopped immediately.

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pythagoras's avatar

Electronic devices: The FAA failed to do due diligence here in a timely manner. There was never a chance that your Kindle posed a problem. Cell phones on the other hand can be quite a nuisance!

As an airline pilot, I regularly experienced interference from mobile phones! It was mostly GSM band phones, and it was usually either the other pilot's or the flight attendants. Sometimes it was a passenger near the front of the plane. The interference manifests itself as a terrible intermittent noise over the radio that could and DID obfuscate audio enough that transmissions needed to be repeated. Modern mobile phones do not seem to be as prone to this interference. Note that your phone is also not going to work very well over about 10,000 feet anyway--so just put it in airplane mode to save the battery.

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