To fly around the world using just the energy of the sun is a dream which, up untilrecently, still seemed impossible. Solar Impulse wants to take on this challenge. Thesolar airplane passed the main test, the historic crossing of the USA from west toeast in two months, in the summer of 2013. It thereby clearly illustrated how cleantechnologies can reduce the consumption of natural resources and our dependenceon fossil fuels. The successful pioneer flights of the Solar Impulse 1 prototype havebroken numerous records and attracted attention throughout the world for the solarproject of Bertrand Piccard and André Borschberg. The construction of the second,improved plane was started in 2011. The aim is to tackle the round-the-world tripbefore the end of the year. The Federal Mint Swissmint is honouring this bold projectwith a 20-franc silver coin. This was designed by Angelo Boog from Wallisellen.Further information about Solar Impulse is available at www.solarimpulse.com.
20 FrancsAlloy: silver 0.835Weight: 20 gDiameter: 33 mm