HB4FR "Clin d'Ailes" Swiss Air Force HAM-Radioclub


Nous voulons intéresser les jeunes pour les sciences, la technologie et la radio


Wir wollen die Jugend für die Wissenschaft, die Technik und den Amateurfunk interessieren


We want to interest young people in sciences, technology and radio



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Currently, various visionary solar projects are in development and testing. Bertrand Piccards "SolarImpulse" and the solar catamaran "Turanor PlanetSolar" - the two big solar project - have already completed their main objective, the circumnavigation of the world!

Every time when Solar projects are in action for tests and especially when they try to reach their ambitious goals, we will have our special call sign "HB9SOLAR" QRV.

In general, we will announce in time our presence on the amateur bands with this call on the most important information channels of the Radio Amateur world.

We will confirm all QSO’s with the call sign HB9SOLAR with a special QSL card [click here to see the card and to access the QSLL policies].

The Solar-Project "SolarImpulse"


After his non-stop flight around the World with the “Breitling Orbiter 3” - balloon, the Swiss Bertrand Piccard completed a revolutionary new adventure. I was about to fly aroud the World in an solar-energy powered aircraft.

The prototype Solar Impulse HB-SIA had already completed an intercontinental flight between Switzerland and Morocco and back, and a Continental flight from California to New York. As of May 2014, the definitive aircraft HB-SIB has completed the flight tests.

On March 2015, Piccard and Borschberg circumnavigated the globe with Solar Impulse 2, departing from Abu Dhabi in the United Arab Emirates, traversed Asia by June 2015 and completed the longest part of its journey, from Japan to Hawaii. There, the aircraft's batteries had to be repaired, took months. Solar Impulse 2 continued the circumnavigation in April 2016 to California continued across the United States to New York, where the plane arrived in June 2016. Still in June, Solar Impulse 2 crossed the Atlantic Ocean to Spain and from there back to Abu Dhabi on, where the plane landed on 26 July 2016. The entire journey of approximately 42,000 kilometers took more than 16 months, using only solar power.

HB4FR was always present on our bands during all flight activities of SolarImpulse 1 and 2, in particular also during the circumnavigation.

[more about the solar-project „SolarImpulse“]

The Solar-Project "Planet Solar"

Tūranor Planet Solar

PlanetSolar is a multlihull vessel topped by a large array of photovoltaic solar panels, constructed by Knierim Yacht Club, in Kiel, Germany. Built in 14 months, the biggest solar boat ever built has impressive dimensions and is yet both silent and clean.
The goal was to navigate around the world at an average speed of 7.5 knots — no mean feat for a solar-powered craft.

The vision for the "Solar Planet" comes from Raphaël Domjan, a mountain guide and rescue specialists from the Swiss Neuchâtel. He plans to take the Frenchman Gerard d'Aboville as helmsman and co-captain in 2011 with the giant catamaran around the world.

On 27 September 2010 Tûranor PlanetSolar started on a journey around the world in Monaco. With this expedition, the iniatiors of the project would like to focus the public awareness on the importance of renewable energies for environmental protection.

After 584 days, Tûranor PlanetSolar returned to Monaco on 4 May 2012 after sailing around the globe. On the first solar boat expedition around the globe, the Tûranor PlanetSolar has reached two records: fastest crossing of the Atlantic Ocean by solar boat and longest distance ever covered by a solar electric vehicle.

[Click here for more detailed information on the project "Planet Solar"]