HOW DO YOU BRAKE IN A POOL?

World of Knowledge (Australia) - - Technology -

New air­craft mod­els are sub­jected to at least 2,000 hours of ter­ri­fy­ing ma­noeu­vres be­fore they can carry their first pas­sen­ger. This Air­bus A350, for in­stance, sim­u­lated land­ing on a run­way flooded with wa­ter to a depth of 23mm. The jet sped through 50 cu­bic me­tres of the liq­uid at up to 242 km/h and had to stay on track when brak­ing, de­spite aqua­plan­ing. “We also demon­strated that no wa­ter splashed into the tur­bines,” ex­plains test en­gi­neer Jean-christophe Bonjour. This el­e­ment is just one part of an ex­ten­sive ap­proval pro­ce­dure. “Our tests in­volve forces many times higher than those that arise dur­ing even the most se­vere tur­bu­lence,” de­scribes test pi­lot Wolf­gang Ab­smeier. “If you saw them, you’d think that the plane wouldn’t be able to fly. But it can.”

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