1/20 WHY ATACAMA ?

1/20 WHY ATACAMA ?

Eighteen years ago, I launched my first expedition in the Andes to discover the wave phenomena of which airline pilots spoke while trembling and the rare glider pilots which returned from it had their eyes twinkling. During all these years, strengthened by our alpine...
3/20 THE EXPEDITION IS TAKING SHAPE, BUT …..

3/20 THE EXPEDITION IS TAKING SHAPE, BUT …..

  Jean-Pierre questions the DGAC (Civil Aviation Directorate) and obtains the authorization to use his Stemme at Calama airport (photo) during November (latitude 22 °S, just above the Tropic of Capricorn), the San Pedro runway (photo) not being sufficiently...
5/20 ATACAMA & CALAMA.

5/20 ATACAMA & CALAMA.

  The Atacama Desert stretches for about 1,000 km in length and 200 to 300 km in width, between the Cordillera de la Costa and the Cordillera de Domeyko (see section below) but the tourist area around ​​the famous volcanoes covers around 500 km long and less than...
7/20 CHUQUICAMATA, A NECESSARY PAIN.

7/20 CHUQUICAMATA, A NECESSARY PAIN.

  The Chuquicamata mine alone represents nearly 7% of national GDP, copper representing 50% of this GDP. It was not possible to visit the mine because of the social situation, but a small drive along the barriers allowed us to realize the importance of this site...
9/20 THE DILEMMA: SHALL WE STAY OR SHALL WE LEAVE?

9/20 THE DILEMMA: SHALL WE STAY OR SHALL WE LEAVE?

Regarding our expedition, canceling everything two weeks before departure did not seem relevant to me. It was a good decision because, apart from a few diversions to get out of the city escaping from burnt tires blocks, or find the shops closed for the day, or give up...
10/20 THE ATACAMENE AEROLOGY

10/20 THE ATACAMENE AEROLOGY

THE METEOROLOGICAL PREPARATION (OR RATHER THE UNPREPARATION). Given the many uncertainties and complications during the preparation of the expedition, which was almost abandoned a few weeks before departure, we set off rather unprepared to go “fighting the volcanic...
11/20 THE HELP FROM SKYSIGHT

11/20 THE HELP FROM SKYSIGHT

Was particularly successful, even if it took ten days to run in the system, ceilings of 7,000 to 8,000 m in thermal (most often blue) not being part of the meteorological standards. The forecast was limited to two days, sufficient for our goal, the discovery. The main...
13/20 CONVERGENCE AND WAKE WAVES OF VOLCANOES

13/20 CONVERGENCE AND WAKE WAVES OF VOLCANOES

Track of the Nov. 7 flight out and return downwind of the volcano Licancabur, and photo. The white areas are not snow (we are at the Tropic of Capricorn!), but either rock salt, gypsum, sometimes borax, or a mixture of everything. We will almost reach the altitude of...
14/20 THERMALS AND GEOLOGY

14/20 THERMALS AND GEOLOGY

  We quickly realized that there was not much to expect from the dark charred ridges of the volcanoes. On the other hand, the ground at the feet of these volcanoes was often of a magnificent red or yellow color which well reflects heat, is made of another...
15/20 THE METEOROLOGICAL FORECAST

15/20 THE METEOROLOGICAL FORECAST

Contrary to the usual latitudes in the northern hemisphere (45 °± 5), the observation of the pressure and geopotential fields and frontal systems at our latitude (22 °S) gave us practically no useful information. In one month, we haven’t seen any front passing....
16/20 WHERE ARE THE BEAUTIFUL PROMISED CUMULUS?

16/20 WHERE ARE THE BEAUTIFUL PROMISED CUMULUS?

One of the deciding factors in favor of the Atacama expedition was the story and photos of a Swiss glider pilot returning from this place, who also participated in our expedition. There were splendid cumulus clouds blooming at 9 a.m. local time, whose bases stayed...
18/20 HIGHLIGHTS, UNFORGETTABLE.

18/20 HIGHLIGHTS, UNFORGETTABLE.

The first takeoff toward the volcanoes. The mythical Licancabur thrones majestically in front of my window every morning, as the air is very clear, it is perfectly visible but is nevertheless 110 km from Calama, and you have to be at its foot at least at 5,000 m, if...
19/20 THE TROPICAL WAVE

19/20 THE TROPICAL WAVE

I launched the “Atacama” expedition in the hope of bringing back memorable souvenirs about “volcanic” thermal under cumulus. In fact, we’ll be living in the “Bolivian winter”, technically the altiplanic winter, which kills our beautiful clouds...
20/20 EPILOGUE

20/20 EPILOGUE

Never a flying expedition has been so improbable and close to cancellation. I did everything to go to the end, against all odds, strikes, social violence, refusal of insurers: I was abandoned by most of those who had supported the project, including all the French....