solar impulse
TRANSCRIPT
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3rd and the Final Model(HB-SIA)
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Bertrand Piccard and
50 aeronautical engineers, physicists and technicians
80 technological partners
Main partners (Solvay, Omega, Schindler )
100 advisers
and
suppliers
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Cruise speed: 70 kilometres per hour (43 mph)
Endurance: 36 hours (projected)
Service ceiling: 8,500 m (27,900 ft) with a maximum altitudeof 12,000 metres (39,000 ft)
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Problem on the spar
In the summer of 2012, during the final structural testof the wing spar, a problem was encountered and thespar broke. After the initial shock, the team gottogether, analyzed the problem and concluded that anadditional year was gained for new Solar Impulseadventures.
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The construction of Solar Impulse 2 or HB-SIBstarted in 2011, incorporated much lessons learnedfrom the previous HB-SIA, but with more spaciouscockpit enabling the pilot to fully recline during flightsof 4-6 day duration. It will have an increasedpayload, isolated electrical circuitry to enable flightsin rain, and improved reliability through systemredundancy.
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140 million Swiss Francsover 12 years including the
construction of two airplanes andthe salaries of an 80 strong team
and also other 80 companiessupported.
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2003: Feasibility study at the École Polytechnique Fédérale de Lausanne
2004–2005: Development of the concept
2006: Simulation of long-haul flights
2006–09: First prototype (HB-SIA)
2009: First flight of prototype
2009–11: Manned test flights with prototype
2011–12: Further test flights through Europe and North Africa in 7 legs
2011–13: Construction of second prototype (HB-SIB)
2013: Continental flight across United States(Mission Across America)
2014: First flight of HB-SIB (2 June)
2015: Planned world tour in several stages
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The historic moment on 8 July 2010
resulted in, not one, not two, but three world
records for HB-SIA and its pilot! The prototype
aircraft was awarded records (in “Solar-Powered
Aeroplane” category) for “Gain of Height”
(8744m), “Duration” (26h 10min 19s) and
“Absolute Altitude” (9235m).
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2015 will be the year Solar Impulse hasbeen working towards: the attempt of the FirstRound-The-World Solar Flight. BertrandPiccard and André Borschberg, the two Pilotsand Founders, will fly around the world with nofuel, rising up to technical, human andoperational challenges that have never beenfaced before.
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