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UN HELICOPTERE SE POSE SUR L'EVEREST !Le 14 mai 2005 à 7h08 (heure locale), un hélicoptère monoturbine Ecureuil AS350 B3 de série avec aux commandes le pilote d'essai Didier DELSALLE, s'est posé à 8.850 mètres sur le sommet de l'Everest (Népal), pulvérisant ainsi le record du monde de posé et de décollage en altitude. Un deuxième posé a été effectué le lendemain 15 mai. Ce record ne pourra jamais être battu, l'Everest étant le plus haut sommet du monde !
Comme l'exige la Fédération Aéronautique Internationale (FAI), l'appareil est resté posé plus de 2 minutes sur la cime avant de reprendre sa descente vers le camp de base. La température extérieure était de -36°C ! L'appareil était une machine de série, qui avait seulement été allégée des instruments inutiles et des aménagements de confort (soit un gain de 120 kg). L'entrainement pour cet exploit a commencé un an avant, avec une série d'expérimentations parmi lesquelles :
L'Ecureuil a été vendu à ce jour à 3670 exemplaires. L'Ecureuil AS350 B3 est la version la plus performante. Ce record prouve que la machine est parfaitement adaptée aux opérations de secours en montagne. L'Inde, avec ses hauts reliefs, pourrait être intéressée par la version militaire du B3, Eurocopter y est actuellement en compétition avec BELL pour renouveler la flotte de l'Armée de l'Air.
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On the 14 of May, 2005, Eurocopter test pilot Didier Delsalle braved the atmospheric conditions of 30,000 feet and landed his Ecureuil/Astar B3 helicopter on the summit of Mount Everest. Then repeated the feat, the following day. Delsalle a resident of Aix-en-Provence, France has been flying for 25 years and participating in mountain sports for even longer. His helicopter landing was purely experimental, but it does raise questions about the future of high-altitude rescue for climbers and potential tourism. Climbing Magazine was able to snag an interview with the busy pilot at the Paris Airshow. Didier, you joined Eurocopter in 1997, how did you end up at their company ? Were you part of the “Time to Climb” records, the 10,211 meter (33,500 Feet) climb and landing on the South Pass of Everest ? When we got to Nepal, we didn’t know our flight zone. The first part of my flights were spent discovering the area, finding the good ways to approach the different summits. At these altitudes you can find winds up to 300 kilometers per hour (about 190 miles per hour). We had to find the location of the updrafts and the downdrafts. We had some surprises; for example, I found an updraft so powerful that I could climb nearly without power. On the flipside, I had to descend with the full power of the engine and I was barely moving down. I had to make a chart of the areas to avoid, and test the measurements by gradually climbing. As for the South Col, we were pretty sure we could take off and land on the South Col, but the summit we didn’t know. We weren’t hoping for much beyond the South Col, then little by little, I realized I would be able to land. So you landed on the morning of May 14 and then you did it again the next day. What made you decide to land twice ? What is special about this helicopter model the Ecureuil/Astar B3 ? Have you done special modifications on it for altitude ? What modifications must a pilot do, such as oxygen mask, pressurized cab of the chopper ? What’s your favorite helicopter ? You had a month long permit to land on Everest, was it hard to get permission from the Government of Nepal ? While you were in Nepal you flew a rescue mission for the Nepalese Government, you rescued two Japanese trekkers, correct ? What motivated you to land a helicopter on Everest? Did something intrigue you about the mountain ? What was the hardest part of landing on Everest ? Do you think a tourist business will come out of this, meaning people wanting to land on the top of high peaks ? And how many years in the future do you think it could be before helicopters are relatively safe at high altitude ? To guarantee the summit of Everest, five, six, seven years, I don’t think so. It is much too difficult, even if you build a very powerful helicopter, the forces you can encounter there are more powerful than the helicopter, and it’s no use to risk the life of a pilot and co-pilot. Even for rescue, I don’t think so. You can save people up to 7000 meters (23,000 feet) on a quite regular basis. More then that, it would be very difficult. Do you plan to land on other mountains ? Do you climb ? What other sports do you do ? Have you heard of the Didier Berthod ? He’s known for crack climbing, he has does a number of 5.13 cracks like Air Sweden, and From Switzerland with Love at Indian Creek, Utah, and Greenspit (5.14a) in Italy. There aren’t too many big-name Didier’s in the climbing world. Didier Berthod.
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