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See how the slide is triggered on the 2nd floor of a Boeing 747 Jumbo

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Evacuating everyone from an airplane in the short time of an emergency is not trivial, and that’s what the famous slides are for. And they’re pretty big in the Boeing 747, the jumbo jet that has two floors.

The video you saw above, released in 2018, shows this very process, which is slightly different when it comes to the second-floor door of KLM’s giant Boeing 747-400, the model of which this year is due to the Coronavirus pandemic is withdrawn from circulation.

The door does not open to the side, as in most aircraft, but upwards, and immediately afterwards the emergency slide is inflated. The entire process takes just under eight seconds.

This procedure, shown in the video, is carried out during the maintenance of the aircraft, since the foil is valid and, if it has never been activated, is extended towards the end of its validity, for example for demonstration and training purposes.

Insufflation is done through high pressure gas cylinders, which are regularly checked by maintenance teams to ensure that the system is properly performing its role at the critical time of need.

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