Is knee defender legal?

Is the Knee Defender even allowed? The U.S. Federal Aviation Administration says it hasn't banned the device as it doesn't have an impact on passenger safety. But most major U.S. airlines, including United, do prohibit its use. It's a similar situation elsewhere.



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The days of all economy class airline seats having the feature is long gone, and part of the reason for the disappearance is the cost of maintenance on the mechanisms and the cost of how much they weigh. The report shared that most modern and lightweight airplane seats weigh anywhere from 15 to 22 pounds per passenger.

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Most airlines have lie-flat seats in business class on wide-body (twin-aisle) aircraft. However, watch out for some notable exceptions to this general rule.

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A lie flat reclines, but doing so doesn't affect the seat behind it. A standard domestic first seat also reclines, somewhat impinging on the person seated behind it.

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Many people think they need to sit up completely straight but research suggests sitting in a reclined position is actually better for the spine as it reduces pressure. Back in 2006, academics in Canada and Scotland found that reclining by at least 135 degrees was effective in relieving back pain.

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Lufthansa business reviews show that most long-haul flights feature lie-flat seats in a 2x2x2 configuration, though the airline is introducing a new business class seat with a 1x2x1 configuration granting everyone direct aisle access. Short-haul flights feature a modified economy class seat.

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It's a rule that's built into your fare class and ticket. But for any passenger, generally, airlines opt to keep these rows empty – even if it makes virtually zero difference to their bottom line. Here's the deal: In the eyes of airlines, it's stealing.

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OK, so the back row is the single worst place to sit on a plane and you should steer clear of it at all costs. But which other seats should you avoid? All middle seats are unpopular for obvious reasons, and the seats in front of an exit row aren't ideal either.

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The best seat on the plane to avoid turbulence is either over the wings or towards the front of the aircraft. The wings of the plane keep it balanced and smooth, whereas the tail of the aircraft can bounce up and down more. The closer a passenger is to the front of the plane the less turbulence they would usually feel.

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It can be nightmarish on a long haul flight, especially if it results in your lacklustre dinner being thrown into your lap. But reclining seats remain the standard in economy class, despite their potential for passenger confrontation.

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Some airlines may skip some letters because some of the letters are absent from their alphabet (e.g. an airline in Vietnam may have the layout ABC-DEG-HKL in economy class because letters f, j, w, and z are absent from the Vietnamese alphabet).

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