Thursday, December 1, 2016

cgCalc - Center of Gravitiy (CG) Calculator

Interresting online CG calculation software ! It works with any planform, including elliptical by doing approaching trapezoidal panels.

Go here



Sunday, November 27, 2016

DSLR For Sale !


I'm selling my Canon EOS 65OD DSLR companion with 2 lens allowing to cover all needs from portrait to action photography. I did many magazine covers and articles with it. CMOS sensor 18.00 megapixels, all info can be found here (https://www.dpreview.com/reviews/canon-eos-650d-rebel-t4i)

  • Lens CANON 18-135MM F/3.5-5.6 EF-S IS STM 
  • Lens CANON 70-300MM EF F/4-5.6 IS USM
  • Sandisk class 10, 32Gb, SD Card
  • Foldable LCD viewfinder SWIVI, 3.0X Magnification (https://vimeo.com/70093455)
  • Bag
  • Additional battery
  • Charger, user manual, cable, software

Price: 900 euros







Sunday, November 20, 2016

Padawan 1.5 aerobat !


I'm currently working in association with FLASH-RC on a new slope glider project , called the "Padawan 1.5", which we hope will be on sale soon.

It is a larger and revisited version of the Padawan I designed few years ago, a small EPP twisteron aerobat. This new version is now 1.5m wingspan, has a rudder, and will feature a fiberglass fuselage and foam weener wings. The airfoil has been specifically developped for this purpose by Thierry Platon. This should give a cute aerobat glider, compact, easily "foldable", giving a good compromise on perfomances and pleasure. We can already say that the plane will be manufactured in Europe with an objective of quality.

This summer, I worked on a prototype using a home made fuselage construction made from extruded foam covered with 0.6mm samba sheet. The wings were made with a foam care and also samba sheet, covered with vynil.


The prototype is a bit heavy for the size with a flying weight of 875gr, when it should be around 700gr. However it could fly in light conditions, is looking great in the air, roll rate is impressive and knife edge flying is easy.

In the meantime the master of the fuselage, rudder, and canopy have been milled, and I just recevied a picture of the molds.

A pre-serie should start soon and I'm very excited to see the result !


Here is a video filmed this summer at Col du Glandon, in light conditions.


I will of course share with you about the progress and the avaibility date as soon as I will have more visibility.

Stay tuned !


Sunday, November 13, 2016

Association FINESSE PLUS



Bonjour à tous,

Je n'ai pas pris part au débat animé voir enflammé de ces dernières semaines sur le projet de loi sur les drones, finalement adopté fin octobre, réglementant les drones et par ricochet nos aéromodèles.

Ce n'est pas que je ne me sentais pas concerné, mais seulement que j’étais très occupé par une fin de saison très chargée avec en autre un championnat de France en Bretagne mi septembre, et un championnat du monde début octobre au nord du Danemark.

J'ai cependant suivi de près la tournure des débats, signé bien entendu la pétition, et je tiens à travers ce post à remercier sincèrement ici le collectif "Sauvons l'aéromodélisme" et son action pour défendre nos intérêts, de manière responsable et constructive. Il s'en est fallu de peu que cela aboutisse à un inflexion des sénateurs/députés permettant de clairement distinguer aéromodélisme et drones.

Pour avoir discuté avec un membre du comité directeur de la FFAM, je pense que cette dernière a subit ce projet de loi qui lui a été imposé, a été maladroite dans sa communication vers ses licenciés et n'a finalement pu (ou voulu) que prêcher pour sa paroisse (club affiliés, terrains déclarés) en oubliant un peu vite que certains, dont je fais parti, sont licenciés et volent en toute responsabilité en montagne ou ailleurs, en vol de pente.

Il est maintenant clair que ce projet de loi est irréaliste et manque cruellement de pragmatisme, est influencé par certain lobbyiste qui voulait passé à travers et obtenir une position de monopole sur le marché du drone/jouet, Parrot pour ne pas le nommer.

Personnellement je suis partisan d'une formation (à travers les club ou association agréées) des pilotes aéromodélistes sanctionnée par une sorte de permis de voler avec un modèle réduit, en connaissant les règles de bases, les interdictions, etc ... un peu comme le QPDD ou les ailes et brevets, mais plus axé sur la réglementation et les fondamentaux.

Je suis également pour une réglementation stricte des multirotors et des aeronefs autonomes (sans limitation de poids), simplement car la technique le permet (GPS, pilotage automatique, limitation de performance, etc ...). Une Aile Disco ou un Quadricopter Bebop peut être facilement détourné de son utilisation loisir première et être utilisé à d'autre fin malhonnête. La Preuve ? Un multirotor retrouvé l'année dernière sur un terrain militaire,  n’étaient autre qu'un Parrot Ar Drone 2 (probablement acheté à la FNAC ou sur amazon), déco camouflage, 720p, enregistreur de vol, etc ...

Par contre il est illusoire de vouloir équiper un modèle piloté à vue sans aucune électronique autre qu'un récepteur des servos et un moteur d'un tel dispositif de limitation de performance. Comment peut on d'ailleurs limiter les performances d'un planeur pur ? C'est simplement ridicule.

La création de l'association "Finesse Plus", suite logique du collectif "Sauvons aéromodélisme" est donc une excellente nouvelle pour tous les amoureux du vol en toute liberté, mais respectueux des lois et règlements.

Cela fait 37 ans que je pratique le vol de pente et je veux pouvoir continuer à le faire sans avoir un gyrophare et klaxon bi-tons sur le fuselage !

Je vous invite à aller visiter le site de l'association (https://finesseplus.org) et à vous y inscrire, c'est ce que je vais faire immédiatement !

... Et continuons à vivre notre passion !

Bons vols à tous,

Pierre

Wednesday, October 19, 2016

Windyty: A super forecast App/software for our hobby !

During last week F3F world championship, I tried an App, which also exists as a web site (https://www.windytv.com), and which is a great tool for our hobby.

We usually use Windfinder or equivalent weather forecast App giving the wind speed and direction, with sometimes the exact direction in degree, or rain forecast, temperature, etc ...

But what is missing is the mapping of the wind direction forecast applied on a map or satellite photo.
And this is exactly what Windyty proposes. This free App/Web include weather forecasts provided by meteoblue (meteogram, airgram, etc ...), but the best part is really the animation of the wind on a satellite photo, where you can see the evolution during the day, or the next days. Graphics are really nice, and nothing is missing as you can select the altitude, rain accumulation, temperature. The App is also very intuitive.

I greatly recommend this App if you have a smartphone, so you can see if the wind direction is correctly oriented to you local slope, or select the right slope among several slope.

The example below with one of my favourite slope "La Muela" in Spain, where you can see in purple the lines indicating the wind direction. The speed of the animation indicates the wind speed. the bar at the bottom allows to see the evolution of the wind speed/direction over a period of time.



Thursday, October 13, 2016

Invite from the Two Ocean Slope Soarers Committee (South Africa)


The Two Ocean Slope Soarers Committee would like to extend an open invitation to all French Pilots to our annual slope aerobatics competition, our next event will be hosted on the 27th to the 29th of January 2017. This would be an excellent opportunity to experience a holiday in Cape Town, South Africa while enjoying
your sport of slope soaring and precision aerobatics during the course of your stay.
Competition format:

  • 2 days (Sat & Sun) + practice day (Fri)
  • Total of 3 rounds flown, weather permitting
  • 3+ judges
  • 2 classes, Expert Class and Open Class
  • Manoeuvres are performed individually but in sequence
  • 2 pilots in the air at a time
  • K-factors apply across all manoeuvres
  • Callers to announce manoeuvre, start and finish of sequence
  • Assigned Flying Box

All details can be found here: http://rcsoaringpictures.free.fr/French-Invite.pdf


Thursday, September 8, 2016

ICARE MODEL CINEMA

Du 19 au 25 septembre, le CRAM RHÔNE-ALPES organise un grand concours vidéo lors de la coupe Icare 2016 à LUMBIN (38).

Alors, à vos caméras ! Et soyez imaginatifs !

Les vidéos HD, d’une durée de 2 minutes maximum, seront visibles sur le site Icare Model Show et projetées sur un écran géant extérieur sur le stand du CRAM Rhône Alpes pendant les deux jours de présentation à la coupe Icare.

Les thèmes

Le sujet principal doit être l’aéromodélisme, qu’il soit avion, planeur, hélicoptère,etc… de vol libre, de vol circulaire ou de vol radiocommandé. Le thème est libre, il peut s’agir d’un modèle en particulier, un club d'aéromodélisme, la FFAM, les différentes catégories de l'aéromodélisme, ou une catégorie en particulier, un modéliste ou l’aéromodélisme en général.

Quand ?

La date limite de proposition d'une vidéo pour le concours est fixée au 18 septembre à minuit.

Le début des votes commencera le 19 septembre à minuit. La clôture des votes se fera le dimanche 25 septembre à 16h lors de la coupe Icare.

Pour qui ?

Tout modéliste ou cinéaste amateur.

Comment participer ?

Le candidat devra s'enregistrer sur le site Icare Model Show et fournir à cette occasion une adresse mail et une adresse postale (pour l'envoi des lots et la communication des résultats).La présentation d'une vidéo se fera en envoyant le lien de la vidéo sur une plateforme de streaming. Les plateformes supportées sont Youtube, Vimeo et Dailymotion. Pour participer au concours, envoyer un mail à cinema@icare-model-show.fr

Le candidat devra être en mesure de prouver qu'il est bien l'auteur de la vidéo en cas de réclamation.

Le jury

La désignation des gagnants se fera par un vote sur le site Icare Model Show. Le public présent à la coupe Icare pourra voter en utilisant son smartphone.Un jury composé de deux membres de l’organisation supervisera le bon déroulement du concours.

Droits d'auteur :

En participant à ce concours, l'auteur de la vidéo autorise le CRAM Rhône Alpes et la FFAM à utiliser sa vidéo de quelque façon que ce soit (utilisation telle quelle ou montage).

Le règlement complet

Les participants à ce concours vidéo acceptent l’intégralité du règlement qui est consultable sur le site


ATTENTION :Les prises de vue embarquées sur un modèle ne sont autorisées que si le modèle est piloté à vue et que ce fait soit visible et explicite dans la vidéo.
Les films réalisés en pilotage FPV ne sont pas autorisés que si elle est réalisée selon la législation en vigueur (le fpv racing peut participer mais le fpv en ville ou à la plage n’est pas autorisé) (Les images de paysage ne sont autorisé que si elles mettent en valeur l’aéromodélisme et pas le vol hors de porté visuel).




Wednesday, August 31, 2016

Auction to support the village of Arquata del Tronto after the earthquake in the area of Monte Vettore

Following the huge earthquake in the area of Monte Vettore (a very popular and well know slope flying site) that took so many lifes, FrSky offered a production X12S customized for an auction to help the village of Arquata del Tronto.

The auction is published on an italian forum, baronerosso.it at the following url :
http://www.baronerosso.it/forum/discussioni-off-topic/362247-frsky-per-arquata-del-tronto.html

Rules are pretty simple:
  1.  Bids end on 11th of September
  2. The Winner pays directly on the bank account of Arquata del Tronto municipality.
  3. The radio is shipped after receiving a copy of the money transfer.
You can also simply do a donation to this account:

COMUNE DI ARQUATA DEL TRONTO
Intesa San Paolo - Filiale di Arquata del Tronto
causale:"Solidarietà Terremoto"
CODICE IBAN: IT33W0306969370100000000246
BIC: BCITITMM

Thanks in advance for your support and generosity !


Tuesday, July 19, 2016

Col de Tende FAI World Cup & Eurotour



Back from the Col de Tende FAI with 2 new trophies, world cup and eurotour. First of all, a huge thank you to the organisers Allan and Paul Eytan, the CD, the base judges, the helpers. Without all these people the contest would not happen, so again "MERCI" ! Even if the weather was less cooperative this year, it is still a super competition in a atomishing landscape !

37 pilots coming from 9 different countries (Germany, Norway, Czech republic, Switzerland, Netherland, Spain, Poland, Austria, France), what a nice contest !

On friday, it was cold with the breeze coming from the north. After a quick welcome and registration, we moved to the north slope and, after a breafing, observed a minute of silence for the victims of the horrible terrorist attack in Nice during the bastille day.
Then the contest started in this north slope, close to the fortress and we managed 5 rounds in good but not strong conditions. The slope is particular, not straight, and without real edge, so the flying technic must be adapted, with a difficult anticipation, especially on the left turn. We finished around 6pm so could get some sport flying after.

On Saturday, the wind was supposed to turn to the south, so the organiser prepared the course on the nice south slope, before the north breeze starts to blow again. Instead to return to the fortress, we decided to install the bases on the back of the south slope, and honetly, it was a good surprise, the slope is more convenient and work the same than the other north slope. We did 3 rounds before the wind drops at the end of the afternoon.

It was a black saturday for me as after my run of round 7, while walking to the landing area, I totally lost the radio link on my neon orange Shinto which started to circle, out of control and crashed on a car. Hopefully nobody was injured, this is the essential. The car has light damages, the plane is heavily damaged, but this is secondary. I will post more on this later.

Sunday started badly to, when Tobias Reik, on behalf Thorsten Folkers, put a protest to ask the organiser to count my round 7 flight at 0 because the plane crashed outside the landing zone. Considering that the landing zone was indicative, not marked on the ground by a line and not checked by a dedicated judge, the protest was hard from my point of view, but ultimately was true, so the jury put me a zero score, too bad ! Curiously the same day, Siegfried Schedel didn't get a zero when loosing his plane from sight and crashing it down the valley far from the landing zone indicated. Selective rules you said ...? Anyway, This is really not a great sportmanship from the guys behind this protest as I was already hitted hard by the lost of an expensive model that was in addition my A-model. But ... lesson is learned !

At the end, the protest was ineffective as I had still a little margin, but no more joker, so no more right to make a mistake. Finally, this protest had the opposite effect on me, reinforced my determination and fight spirit and I managed to take more advance in the 2 rounds we have flown on Sunday ... sorry guys !

The conditions on Sunday were extremely variable with variations between 42s and 73s in few minutes, average being above 50s. We were expecting the wind to grow, but it didn't happen before the end of the comp. After 10 rounds, the constest ended and Espen Torp finished Third with consistent flying during all the contest with his Jedi, behind Thorsten Folkers flying a FS5. I ended the contest in first position flying the Jedi the 4 first rounds, then the Shinto the 3 last rounds before the crash it and finally the Stribog the 3 last rounds. The Stribog desmontrated that it was very competitive against the references on the market. Armin Hortzitz finishes 4th. Matthieu Mervelet did a good climb in the ranking to finish 5th. In the team ranking, the french team named "Kousoku Shinkou" (Matthieu Mervelet, Julien Honor, Pierre Rondel) finishes first in front of the German team "Schwaben" (Thorsten Folkers, Siegfried Schedel, Tobias Reik) and another french team "Al Lanes team" (Philippe Lanes, Sébastien Lanes, Allan Cohen). Best speed of the contest goes to Thorsten Folkers with a 37.61s

To put some pictures on this short report, please find my photo album below:


Pictures from Thomas Winkler are here.

Full results on F3X vault.

See you next year at Col de Tende !

Saturday, June 25, 2016

HV6130 and HV6130H: A concentrate of power and technology in a small package !


MKS is releasing 2 new servos for the glider enthusiasts we are, the HV6130 and HV6130H (upright mounting tab for fuselage use) ! They use the same form factor than the DS6100 / HV6100 / HV6110 but use all metal case, and feature an upside-down high quality HV coreless motor installing, to reduce space. This servos will therefore easily fit in the smallest wing servo bay, used with RDS or LDS, or fuselage, and provide an incredible torque between 6kg under 6V to 8.1kg under 8.2V !!!

They are positionned between the 6125 and 6625 family, but are smaller than both. You will find the spec drawing below. They integrate 2 new interresting features with in addition to 3 ball bearings, 2 additional jewel bearings to strengthen the structure, and a Built-in Safe
System, which works as a protection against voltage draw when servo overloading and allow to land the plane safely.

Please note that the HV6130 will be available within 1 or 2 months, and HV6130H will come a bit later.












HV6130

  • Torque: 6.0 kg-cm(6.0V) / 7.6 kg-cm(7.4V) / 8.1 kg-cm (8.2V)
  • Speed: 0.14 s (6.0V) / 0.11 s (7.4V) / 0.10 s (8.2V)
  • Weight: 22.5 g
  • Dimension:30 x 10 x 29.8 mm 
  • Working Voltage:3.5~8.4 V DC Volt
  • Working frequency:1520μs / 333Hz
  • Current draw: 1.2A @ 6.0V 1.4A @ 7.4V 1.6A @ 8.2V
  • Dead Band:0.001 ms (Default)
  • Bearing : 3* ball bearing + 2*Jewel bearing
  • Motor:Coreless Motor
  • Gear:Metal alloy gear

HV6130H

  • Torque: 6.0 kg-cm (6.0V) / 7.6 kg-cm(7.4V) / 8.1 kg-cm (8.2V)
  • Speed: 0.14 s (6.0V) / 0.11 s (7.4V) / 0.10 s (8.2V)
  • Weight: 23 g
  • Dimension:30 x 10 x 29.8 mm 
  • Working Voltage:3.5~8.4 V DC Volt
  • Working frequency:1520μs / 333Hz
  • Current draw: 1.2A @ 6.0V 1.4A @ 7.4V 1.6A @ 8.2V
  • Dead Band:0.001 ms (Default)
  • Bearing : 3* ball bearing + 2*Jewel bearing
  • Motor:Coreless Motor
  • Gear:Metal alloy gear