IF you love a window seat on an airplane, you may have noticed something unusual about the wing.
At the top of an airplane wing is a yellow hook, often with two holes in it.
However, the reason for the strange contraption is due to emergency.
The hooks are needed in case the plane needs to land on water.
Ropes are then attached to the hooks to help passengers exit the cabin.
Airline pilot and YouTuber Captain Joe explained in one Video: “In the event of an emergency landing, say on water, the flight attendants will ask you to evacuate from the emergency exits over the wings.
“Once you get to the door and put your foot on the wing, you will most likely fall because the surface will be wet and very slippery.”
He said the rescue ropes could then be attached to the door frame and hook.
He continued, “There is another rope attached to the other hole that leads to the slide.
“This small piece of metal was installed to allow the lifeline to be attached, giving you a more secure footing on the slippery surface at the top of the wing.”
One of the most famous plane landings on water has now been dubbed “The Miracle on the Hudson”.
Filmed with Tom Hanks: US pilot Chesley Sullenberger was flying US Airways Flight 1549 on January 15, 2009 when both of the plane’s engines were damaged.
He was forced to land the plane on the Hudson River, with all 155 people on board surviving.
An expert has revealed some other ways you can improve your chances of surviving a plane crash.
This includes checking emergency exits, removing everything from bags and wearing sensible footwear.
And here’s another secret plane feature that could save your life in an emergency.