Showing posts from September, 2014

Pikes Slim radio installation and maiden flight

Installation is (very) tight, but fine as after some thinking, each element finds its place naturally. Some changes however: I installed the super tiny and powefull MKS DS6100 for the elevator (note: The MKS DS6125e can fit).  I replace the 8 channels receivers by a 6 channels receiver, installed on top of the fuselage. The battery is a 2S LiIon 2900 mAh, so I have S-BEC in front of each servo. Satellite is in the nose. First antenna is below the receiver, in a plastic sleeve glued in the fuselage, the second antenna is on the side of the receiver with an angle of 45 to 60° (not 90° as idealy recommended).

At the end I needed about 130g of lead in the nose to retrieve my optimal CoG of 107mm. I will keep my current settings as the rear boom has the same length. Empty weight is 2170g for a double carbon ST wing version, which is a very good weight for F3F.
Maiden flight occured end of august, few days before my departure for the World championship on Slovakia. Conditions were light an…

Report: Alpine F3F cup, Briancon

1 weeks after the FAI of col de Tende (eurotour/worldcup), most of the pilots met again in the french alps in Briançon for a contest of the Eurotour. the specificity of this contet is that we reach the slope using 4x4 cars therefore the number of participants is limited to 30. This year, I have been honored by the organisers to be responsible to drive one of the 4X4 cars. This is my first experience ever, and I really enjoyed it, with my copilot Mickael Krebs. The first day os the competition we went to the south slope, waited a bit for the breeze to install, then started some rounds. Conditions were very variables from one flight to another. At the end of the day, we had 4 rounds in the pocket. Matthieu Mervelet was in first position, followed by Frédéric Hours and Stephane Riccobono. On Saturday, we changed to the North slope located at 2400m of altitude. The wind was blowing strongly so we could expect lots of additional rounds and a change in the ranking. This slope is very tech…

Flying the Vagabond from Hacker Model

I programmed several flight modes with different amount of elevator. Normal flying with normal (but still agile) elevator, full elevator position with lots of exponentional to keep the Vagabond controlable and a thermal position with some camber and little elevator mouvement. Despite this, the Vagabond needs an adaptation time. It reminds a very agile plane, without inertia, and very neutral which needs always some attention to pilot. It is possible to fly the Vagabond in small conditions and thermals with it. Now don't expect to do long transition to catch the thermal. I you go through sink air, the plane will show it clearly and loose altitude quickly. At the opposite, I flew the Vagabond in strong and turbulent wind. The structure is flexing in all direction, but the plane remains controlable. Now this is not fun and there is no means to ballast it. No, the best conditions for the Vagabond are a gentle breeze creating a stable lift at the edge. Here everything becomes possible…

Report: FAI Col de Tende

The 18th, 19th and 20th of July was the first edition of the FAI contest of the Col de Tende at the border between Italy and France. In fact this contest was formerly the contest held in Caussols, but organisers decided to move it to Tende to use this exceptional slope with good breeze conditions in summer. For this first edition, plenty different nations were represented among the 32 competitors coming from France, Germany, UK, Poland, Cezch Republic, Switzerland, Netherland, Austria.
Friday, after the briefing at the end of the morning, we could complete 2 rounds, the third one couldn't be validated because of too many reflies and also because of the wind dying
Saturday was a great day as we could fly 8 rounds. Conditions has been very stable as expected. Only the clouds appearing time to time because of the pressure and humidity had to be carefuly followed.
Sunday, we could add 4 more rounds to reach a total 14 rounds. Unfortunately, it was 1 round less than the number require…

Video: Needle 115V onboard cam

A flying session at puy de manse with a Mobius attached on the wing tip or on the fuselage:

Video: New launch method !!!

Michel Leroyer launching ... well pushing Gérard Prat's Air 100 into the slope. We had about 70km/h of wind at that time

Video: Asw-15 aerobatics

Roland Stuck doing aerobatics with his home made 5 meters wingspan ASW15. A super pilot and a nice plane for a magic moment.

Picture of the 16th of July

A 4 meter Air100 doing aerobatics at Corps, near Grenoble.

V-Venture, le prêt à voler selon Graupner


Le V-Venture est le petit nouveau de Graupner sur le segment des moto-planeurs de début avec moteur propulsif. Il rejoint le Rookie vendu par la même société. Il vise davantage le jeune débutant pressé de voler et ne voulant pas s'embarrasser avec la construction. Il est du coup disponible uniquement en version  RTF, livrée avec un émetteur MX10 ou en version RFH qui signifie «ready for Hott» le système 2.4ghz commercialisé par Graupner. C'est cette deuxième version que je vous propose à l'essai aujourd'hui.
Présentation du kit

Le V-Venture arrive dans une large boite, bien calé dans son fond de boite en polystyrène. Ce qui attire immédiatement l'attention, c'est ce stab en V déjà assemblé, non démontable et ne fournissant que la fonction profondeur. Ce choix de conception est de prime abord curieux et prend à contre pied les modèles de débuts traditionnels «dérive-profondeur». Nous verrons lors des essais en vol si ce choix est finalement judicieux…

Planet-Soaring is back

Hello  all!

After a summer break, planet-soaring is back with plenty of work on the table. I just returned from the F3F world championship in slovakia where I got a team gold medal with my team mates ! the week before, I also kept my national champion title in Ardèche on a super spot. We did 20 rounds in 2 days with plenty of fast time and a sub-30 (29.40s) for me which is not so often. Erlier in the summer I broke my personnal best in the vercors with a 28.01s. I also won the eurotour/world cup contest of the col de tende on the France/Italy border. In brief, a very sucessfull summer with plenty of nice memories, and pictures that I will share with you in the coming days !
Stay tuned !