Sunday, December 1, 2013

Harvesting the sun - solar power - our choices:

During the expedition we will be in full autonomy for about 60 days.

This means 60 days of food, fuel, medical supplies, spares and repair materials, but also 60 days of electrical power! And todays expeditions are quite energy hungry: 

We anticipate to bring 2 satellite phones, 2 VHF radios, 3 GPS, 2 digital cameras, 2 POV cameras, a conventional video camera, and most likely also a satellite modem, a small laptop or tablet computer and MP3 players.

In order to feed the rechargeable batteries of all these devices we have choosen:

  • 2 flexible, folding solar panels based on polycrystalline CIGS technology, manufactured by Brunton:

Solaris 12 (12 Watts of power)
-Solaris 26 (26 Watts of power)

  •  2 buffer and backup batteries, which allow to regulate the charge and to store the energy harvested by our solar panels:

Tekkeon MP3450

Sustain 2

We pay utmost attention to the protection of these precious devices during the expedition. Cruise speeds easily exceeding 40 km/h under good conditions, and the rough surface of the icecap (sastrugis) put all  equipment to a test. But electronic devices are particularly vulnerable yet at the same time crucial for our  safety as we use them for navigation, weather updates and general communication. Redundancy in our power sources, power storage, but also in our devices will help us to ensure these vital functions in case of potential failure.

Thursday, June 13, 2013

The french magazine Carnets d'Adventures, media partner of WOG II

Carnets d'Adventures, the magazine of "fair-mean" journeys, in the nature, on foot, bike, kayak, ski, paragliding, horse, roped party... with bivouac, going from a few days to several years, becomes partner of Wings Over Greenland II.

This magazine that celebrates its 9 years existence, became in France (in Belgium and Switzerland too) a major reference for not motorized
travelers. Quarterly read by several tens of thousand outdoor sports activities amateurs, extended on the net by the website (approximately 3000 unique / day visitors), Carnets d'Adventures is different from other magazine by its very complete technical files and equipment trials.

Michael already published some articles by the past :

- In the magazine :

  • « Préparer une expé en milieu froid – Dossier technique Grand Nord », 14 p, CA n° 26, Winter 2011-2012 (+ cover page) 
  • « Tempêtes sur le Vatnajökull – kite-ski en Islande », CA n° 22, Winter 2010-2011 (+ cover page) 
  • « Autant en emporte le vent, 2 250 km en snowkite à travers les glaces du Groenland », CA n° 18, Winter 2009-2010
  • « A VTT BUL sur les sentiers aériens du Dévoluy », CA n° 27, spring 2012 (co-written with A. Roy)
- On the website :
Michael is also a member of the magazine tester team. Its last contributions are : 
The Carnets d'Aventures website and magazine will make known our adventure and blog to its readers, giving us a good visibility in the french-speaking outdoor sports activities community...

Tuesday, April 9, 2013

Snowkite in Norway

Finse, Hardangerjökulen and Skarvheimen massifs,

March 1 – 9, 2013


Every winter since 2007, we make a trip to Finse in the south of Norway for kiting. Our first journeys there were the opportunity to prepare a south-north kite-ski crossing of Greenland. An expedition we realized in May 2008: 2250 km across the Greenland ice sheet in 31 days. Since then, we never stopped to return to this place of Norway, totally convinced that Finse is one of the best European spots for snowkiting as we like it, free ride and touring style : sure snow coverage, almost permanent wind, a playful, hilly terrain, neither too gentle nor too pronounced, vast expanses of untouched terrain... An explosive cocktail for those who wish to really combine snowkiting, freeriding and endless spaces...

Mika on the south summit of Hardangerjökulen, Flysurfer Speed 3 19 m² Deluxe
     The following acount is about our first test of the Flysurfer Speed series kites and our impression of the 2 bigger wings that we are going ot take on our next Greenland expedition, the Speed 4 10 m2 Deluxe and Speed 3 19 m2 Deluxe...

     In the South of Norway, the weather was incredibly good during the entire month of February. It was not without a certain fatalism that we take note of the weather reports announcing a change for the week to come... Normal, in a way, the good weather had lasted too long already... And indeed, at our arrival at Finse on Saturday, March 1st, a strong gale is raging. We have no other choice than to wait until the next day for things to calm down for our first kite session, made in Norway 2013.

On Sunday, March 2nd, the wind exceeds 25 knots, and despite the visibility getting better in the afternoon, it is not reasonable to try our brand new Speed 4 10 m² Deluxe in these conditions. No problem, we take our Beringer parawings out of our quiver (open celll wings on which the bridles are directly connected to a bar oriented perpendicularly to the leading edge, particularly effective in stormy weather)... Invented in Germany, these wings are used since a long time on polar expeditions, but also at Finse where probably no less than 50 % of the parawing users worldwide are concentrated ...

Cornelius, parawing 8 m² S, on the west part of the Finsevatnet lake.

Despite their rather basic appearence, these sails have nevertheless excellent qualities in many situations and are particulary pleasant and safe to fly in excessively strong winds : it is then necessary to carve the skis pretty hard, maintaining a very oblique position ... The exercise gets quickly rather physical when looking for speed and sensations...

Mika, parawing 8 S, on the Finsevatnet lake

On Monday, 3 and Tuesday, 4, the wind eased out sufficiently, so that we could finally unpack our new toys. But the pale luminosity still masks a lot of the surface texture which we discover to be very sculptured by the wind, full of hard sastrugis. We do not remember having seen comparable snow conditions on the Finsevatnet lake since we know the area.

The first time we finally get hands on our Speed 4 10, we stay on the Finse lake and on some slopes dominating its surroundings, but we couldn’t really switch into high gear and take advantage of the full potential of this new generation of kites yet. Since then, a nice session at one of our alpine home spots in Cervières, French Alps allowed us to better appreciate this excellent wing.

Mika swooping down the slopes of Bukkeskinnsbotn, foothills of Hardangerjökulen (above). 
On the Finse lake (below), Speed 4 10 m² Deluxe.

The next 3 days, the wind turned east and south-east which is synonym for more stable conditions, very beautiful days, intensely sunny, but also low winds. We took out the big ones, our Speed 3 19 m2 got unleashed, ready to reveal their full potential !

Wednesday, an erratic breeze on the lake eventually convinces us to put the skins on our skis in order to reach the heights of Hardangerjökulen, a small icecap peaking at 1863 m. Small, only on the scale applicable to nordic contries, but sixth biggest glacier of Norway with a surface of 73 km². Cornelius, more realistic, skins up almost to the top, to make sure to catch the wind. Mika thinks he can take advantage of the light breeze blowing on the Middalen glacier, in the hope to gain some height quickly and with less efforts... Wrong idea... !

It is necessary to say that we had never experienced a phenomenon as strange as this one, the light catabatic creeping down the surface of the glacier was clearly sufficient to make a kite of 12 m2 or even 10 m2 fly. Yet the thickness of the catabatic layer barely exceeded 5 m in height. Above, the wing faints systematically. If the breeze was sufficient to barely keep the sail just above the ground level, it didn't allow the kite to raise. In every kite loop, the wing would loose power and drop again. Mika persists in this hopeless task in the expectation to find a stronger catabatic flow on the west side of the glacier. He eventually gets grounded for good. Ready to give up and return back home, he perceives the blue and white sail of Cornelius far on the summit crest of Hardangerjökulen, changes his mind, puts on the skins again, and climbs the Middalen glacier.

It is already 16:30 when he finally reaches the summit crest, where the wind had sensibly picked up in the meanwhile. Cornelius, has already left off to kite down one of the small glaciers in the northeast. The top of the icecap is slightly undulated, the landscape very open, and the view ranges from the Hardanger plateau to the far south and east, as well as the mountains of Skarvheimen and even the Jötulheimen - peak of Scandinavia in the north. Unexpectedly, the surface of the icecap is much better than the hard packed and rough snow which covers almost all of the lower parts.
Its already two years since we last kited on the summit of Hardangerjökulen. Last winter, the snow had been glazed before our arrival there, and the winds had remained too strong to be able to reach it with these icy surface conditions...

Sunset on the summit of Hardangerjökulen and the Blaisen glacier. In the background, the seemingly endless plateaus of Hardangevidda.

By now, the sun is already low on the horizon and after a few tacks, Mika pricks towards the northeast and kites down the Blaisen glacier, in headwind. Once on its terminal part, where the slope gets pretty steep, the kite suddenly moves by 120 degrees in the wind window, switching at once from head- to tailwind. A sign that the rider has just left the layer affected by the meteorologic wind and found again the catabatic. After negotiating the bit tough exit from Blaisen in tailwind, he finally loses the wind at the glacier front. Michael packs the kite, and calculates his return route to make best use of the slope and finish the last kilometers skating at nightfall, full of good mood.

On Thursday, March 7
th,, with same weather forecast and always no wind on the lake, we put on the skins again. This time we climb the south slopes of the hills dominating Finse , in the direction of Satehjellane mountains. 200 vertical meters above the village, we find light easterly winds. We get out the big kites and play a moment on the heights of Sanddalsnuten, but as soon as we lose a little altitude, the breeze becomes erratic, sometimes non-existent.

Cornelius " kiteloopes " to come back up the slopes of Sanddalsnuten, Speed 3 19 m² Deluxe.

Mika, monts Satehjellane, Speed 3 19 Deluxe

But finding the spot a little to small while the surrounding undulating landscape invites to roam, we follow the temptation and venture northward, unsure about the wind.

Monts Satehjellane

We cross a first depression, a lake shielded from the wind, as fast as possible and notice to our great pleasure, that the little speed we gained in joining the bottom is enough to slightly power up the 19 and to get us cross the depression. Amazing!

For one hour, we fight in an almost non-existent wind, trying to round our kiteloops well while staying as close as possible to the moraine ridges, diving from time to time into little slopes to get across some shallow valleys and small lakes. This way, we eventually reach the Klemsbu shelter, and the Sankt Pål peak.

Klemsbu shelter in Satehjellane mounts. In the background, the Hardangerjökulen massif.

We are convinced, that in order to get back to Finse we would have to pack the kites, as the valley we are about to follow seems entirely shielded from the wind.

While moving closer to the slope announcing the valley, we set ourselves an ultimate point to reach by kite and where we are convinced we would definitely lose the wind. But no ! The gentle breeze pouring down the slope together with our slightly downward trajectory gives sufficient power to our kites to continue.
From then on we try our best to keep the altitude, to avoid getting buried in the valley, and notice that the wings really keep on flying. With Sanddalsnuten behind us, we imagine for a moment that we would have to go up the slope sailing into the wind in order to reach a small pass that would allow us to get over to the windward side. One tacking makes us aware of this laborious choice and of the strong risk to get out of the wind in these feeble aerologic conditions. So we resume again our tailwind course and finally realize happily that the breeze here is sufficient to carry us across the crest of Sanddalsnuten a little further south. Once there, we dive down a frozen hillside making a few tacks, cross the high-voltage line and pursue the descent to Finse in light tailwinds...

Throughout the entire day, the behavior of the Speed 3 19 m2 left us really amazed. It is obvious that we would not have been able to make this days tour with a smaller kite. With sometimes very little wind, we managed to make slow but efficient progress, doing long series of kiteloops on the more favorable side, much helped by the ingenious Infinity Bar, without ever completely losing the wind or "folding the ears". As long as the sail is moving, even at very low speed, the canopy remains inflated and extremely stable. At the end of the loops, when the kite rises up again, it is a precious advantage to be able to focus on the trajectory without having to care about the risk of deflation. On the other hand, we had to permanently pull on the back lines behind floaters in order to close our manys loops of small diameter. Interestingly, every time we were able to gain some speed, there was immediately a considerable increase in power, making any kiteloops unnecessary.

On Friday, 8, the sun still shines, and there is almost no wind at Finse and on the lake. We are not sure where to go today. But looking through the windows of our cabin, an observation suddenly puts an end to our hesitation. 3 kiters are making their way up the Blaisen glacier headed to the Hardangerjökulen.

Cornelius riding up Blaisen glacier, Hardangerjökulen massif.

Today, the breeze is just sufficient to start right from the lake. We don't ask for more ! Once again, we realize that even in very low winds, the Speed 3 19 m2 already nows to unfold its full potential. It takes us only a few minutes and about ten tacks, where we needed at least twice more the previous years, to reach the eastern border of the Blaisen glacier. A feeling of outrageous efficiency ! This kite has surprising power reserves, we only need to pick up a minimum of speed to be able to power it up and lock it in in the wind window. By the way, the headwind tacks are distinct with really high windward angles.

Cornelius under Speed 3 19 m² and Ronny Finsaas with its foil set on 50 meters lines.
Summit slopes of Hardangerjökulen.

In the lower part of Blaisen, a catabatic cancels the meteorologic wind resulting in a zone of turbulences. Some loops allow to pass the last one of the 3 kiters spotted from our cabin one hour before, a group of pleasant Czechs, buried for some time in this area of complex aerology. But a little higher up on the curved glacier, the catabatic strengthens the meteorolgic wind and locally we observe even drifting snow. In 2 tackings, we pass Venina, the girl of the Czech group, and join her friend Pavel who just made it to the summit a little before us. On arriving there, Ronny Finsaas, an experienced local kiter, appears out of thin air, racing up the glacier with his handle kite on 50 meters lines.

Mika, summit slopes of Hardangerjökulen. In the background, the northeast part of Hardangervidda plateaus

Hardangerjökulen summit (1863 m)

Cornelius on the way towards the south Hardangerjökulen summit.

We set sail towards the south dome of the icecap, a few kilometers away, to admire the view on the Hardangervidda plateaus. On our way back, we just manage to return to the main summit in fainting wind. For a moment we hesitate to head west-northwest, by crossing the slopes linking the top of the Middalen glacier to the domes of the Hardangerjökulen. We try and it seems to work, but without any guarantee in case the wind weakens. Finally, we give up and cross towards the northeast, 50 meters below the summit. There, as two days ago, only a a thin sheet of cold air creeps down the summit slopes. We make some effort to progress crosswinds, but with no better results than 2 days before. The lesson is learned, this time we give up.

On Saturday, March 9th, the clouds are back, the visibility poor, and the easterly wind remains pretty weak. We take advantage to test the Speed 3 19 m2 with 46 m lines, instead of the 21 m supplied with the kite. In 2008, during our south-north Greenland crossing, we had tested lines of 40, 50, 60 and even 100 Meters and quickly adopted the first 3 lengths systematically for our medium and large-sized kites. The interest had been immediately obvious. A larger wind-window allowing bigger, more powerful loops, the need to do less of them, while the kite stays higher above ground. In consequence, the risk of deflating the kite or tangling the bridles and lines in sastrugis is greatly reduced. Fewer turns in the case of figure 8 patterns means also a reduced loss of proper speed of the kite, and allows one to catch stronger winds at 40, 50, even 80 m over the icecap where the wind speed is less influenced by the surface roughness, which is slowing down the flow of the catabatics close to the ground.

With line this long, the Speed 3 19 m
2 seems even more stable, if this possible at all. Yet gets inevitably less reactive. After tacks and turns, the sail needs a little more time to be well-settled, yet again, once locked in, does not move any more...


This evening, we take the train that brings us back to Oslo, but our spirits still hang around the Hardangerjökulen slopes. The week was excellent. We encountered all of the possible weather conditions a stay in Norway can hold in store, yet had the opportunity, repeatedly, to do what we appreciate most, climb the summits and do amazing tours. Last, but not least, we got hands on our new kites and were able to get a glimpse of their excellent potential for our next project in Greenland...

Photos: Cornelius Strohm & Michael Charavin
Texts : Michael for WOG.

Tuesday, February 26, 2013

New choice of kites : Flysurfer Speed

We have arrived in the world of snowkiting and this lively community by the way of polar expeditions. To add a very technical activity, as well as the delights of speed and gliding, to the repetitive and laborious activity that are often at the core of the progression on long polar skiing expeditions, was our main motivation. But time passing, we got hooked and we have meanwhile become real snowkiters. At least almost, as we still stay a little away from the busy and small spots of our regions ! Yet every week during winter, we get our kites out to do some backcountry riding in mountains.

But we never forget our first "loves" above all that. Since one year already we are planning a huge expedition through the polar territories again. To be revealed soon !

Anyway, we are more experimented kiters today than we were during our previous Greenland crossing, and we also acquired some practical and theoretical working knowledge of the peculioar aerology of polar icecaps. It was thus natural to completely rethink the choice of the kites in order to find the most adapted tools for this new project.

Cornelius in the Bukkeskinns cirque, foothills of Hardangerjökulen, Norway. Flysurfer Speed 4 10 m2 Deluxe.

We know today that the success of large-scale snowkite expeditions is based on some simple criteria:
  • Naturally, it is necessary to be capable to progress by kite in all conditions. But contrary to the idea one may get, it is particularly important to be able to make ground in low, or even very low, winds.
  • An expedition needs of course a complete and effective quiver to progress in winds ranging from 7 knots to about 40 knots. However, it is of advantage to limit the number of kites ! Less with the objective to reduce the weight and volume embarked on the expedition, but rather to simplify the essential and permanent question of the appropriate choice of kite size. If a single kite corresponds to a given wind speed, and if the wind range of the different kites does not overlap substantially the choice is so much easier.
  • Indeed, the daily gain in distance is not determinated by the maximum- but rather by the average-speed the team is capable to maintain. Making the right choice of kite size all the time (to know how to delay a desire for change or, on the contrary, operate an efficient change when necessary) is as important as knowing to get the best out of a given kite in the low, medium and high wind speed range. Having no option to hesitate between two potentially good kites surely increases the efficiency.
  • Add a daily kiting routine of 10 hours or more, in a hostile and very isolated environment, and this during more than 50 days, it is normal to consider the piloting comfort as a parameter of primordial importance. It will help to save energy, increase the efficiency and results in a reduced risk.
  • However, the quest for comfort should not impair the kites performances such as the progression at high speeds, the ability to maintain a heading in difficult going (headwind, downwind), and a homogeneous performance of the kite over its entire wind range including the lower and higher limits. For the bigger kite to be used in winds lower than 10 knots, its capacity to take off and to relaunch again, to fly and to generate pulling power in very light wind is obviously of primary importance.

Flysurfer Speed 4 10 Deluxe

      Finding the best compromise between piloting comfort and flying performances is not a simple task, because these two parameters are often antagonistic. Flysurfer, proposing kites with both, fast and stable profiles thanks to the closed cells design, and a pleasant and safe control thanks to an unbelievably effective depower, seems the kite maker coming closest to the perfect mix which we are looking for. By opting for Speed 3rd and 4th generation, for winds lower than 25 knots, we should have adequate tools for our ambitions...
     If it is more than likely that we shall lose a little comfort in ground handling during stops and while packing the kites due to the closed cell design. Yet this is the price to pay for their stability during the progressiion, and the efficiency of the depower combined with their wide wind speed range, their capacity to sail upwind or lock in in a given position of the wind-window. The power reserve of the Speed 3 19 m2 and its capacity to relaunch even in very low, wind will be among the many advantages which should help to increase our average progression on the ice, without making too much compromises on the piloting comfort.

Photos: Cornelius Strohm and Michael Charavin
      Texts: Michael for WOG.

Speed 3 19 Deluxe

Friday, January 25, 2013

Snowsled, "historic" partner

The English company 'Snowsled', specialized in the conception of pulkas and equipment for polar expeditions, was one of the "historic" partners of Wings Over Greenland 2008 and the first one to show us its confidence.

In 2008, there was only one plastic pulk manufactured by Snowsled themselves: the Ice Blue Trail (still made and sold at the moment). These blue pulks performed in the terrain beyond any expectation. Have alook at the report we issued after our Greenland

Roger Daynes, the owner of the company, kindly agreed that Snowsled is again going to be our partner in 2014 and will support the expedition with the new Ice BlueExpedition pulkas (the bigger sister of traditional Ice Blue Trail) as well as the associated bags ans ajustable straps developed by Snowsled.

We plan to use use them once again in a catamaran configuration, where 2 pulkas are tethered together in parallel for increased stability when kiting at high speed. The circumnavigation project in 2014 will benefit from the increased volume and load capacity of this new model to haul the estimated total of 300 kg of equipment and food, which we are going to take along with us.

Thanks a lot Roger !

Tuesday, January 1, 2013

Happy new year 2013!

The team of Wings over Greenland wishes a happy new year to everybody !

Kiting on the slopes of Hardangerjokulen. Finse, Norway.