Stowing away

A stowaway is a person who secretly boards a vehicle, such as a ship, an aircraft, a train, cargo truck or bus, in order to travel without paying and without being detected.

Poor perimeter security at a number of airports around the world can make it easier for people to stow away on planes.

Stowaways in aircraft wheel wells face numerous health risks, many of which are fatal: being mangled when the undercarriage retracts, tinnitus, deafness, hypothermia, hypoxia, frostbite, acidosis and finally falling when the doors of the compartment reopen. The landing gear compartment is not equipped with heating, pressure or oxygen, which are vital for survival at a high altitude. According to experts, at 18,000 feet (5,500 m), hypoxia causes lightheadedness, weakness, vision impairment and tremors. By 22,000 feet (6,700 m) the oxygen level of the blood drops and the person will struggle to stay conscious. Above 33,000 feet (10,000 m) their lungs would need artificial pressure to operate normally. The temperature could drop as low as −63 °C (−81 °F) which causes severe hypothermia. Those stowaways who managed to not be crushed by the retracting undercarriage or killed by the deadly conditions would most likely be unconscious when the compartment door re-opens during the approach and fall several thousand feet to their deaths.

David Learmount, an aviation expert of Flight International, told BBC about a lot of ignorance in this area. He suggested that no one would be willing to risk such journey, having full understanding of this kind of ordeal. Stowaways who survived usually traveled relatively short distances or at a low altitude. Two cases are known of people who survived at an altitude of about 38,000 feet (12,000 m) – a man on an 8-hour flight, whose body core temperature fell to 79 °F (26 °C), and a 16-year-old boy who was unharmed by a 5.5 hour flight, despite losing consciousness. Almost all aircraft stowaways are male.

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Wikipedia