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Hélidrones


panajim

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Ottez moi d'un doute mais... faire un drone... que ce soit du 200kg 500g 10t,

La problématique de gestion (droniser un élément) est la meme, le reste n'est que adaptation à une plateforme de l'helicoptoriste, non ?

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  • 1 month later...

Another area of interest is how countries will field vertical-takeoff-and-landing unmanned air vehicles (VTUAV). The U.K. is seeking an over-the-horizon surveillance capability for the Royal Navy, and France is looking at its long-term needs. Schiebel's S-100 Camcopter has been used heavily during demonstrations, and company CEO Hans Schiebel says, “since we are the only system in the market and the most mature system, we have a very good market position.”

Still, many navies have signaled that the S-100 may be too small for their long-term needs, driving Schiebel to work on a larger system it hopes to be able to deliver next year.

Others have their eye on that segment, too. Saab is working on its Skeldar system and Indra has begun flight tests of its Pelicano unmanned aircraft. The Spanish company plans to complete ship integration work this year. It is targeting the 6-hr.-endurance system for use from frigates and patrol boats.

EADS is betting on its 300-kg. (260-lb.) Tanan VTUAV aimed at both navy and army users. One of its key features is a heavy fuel engine, notes a company official. Flight trials are underway.

http://www.aviationweek.com/Article.aspx?id=/article-xml/AW_06_04_2012_p66-458511.xml&p=2

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Cet article répond partiellement à ma question plus haut : beaucoup de marines ont signalé que le Camcopter S-100 est d'un gabarit trop modeste pour répondre à leurs besoins sur le moyen-long terme, ce qui a conduit Schiebel à travailler sur une version plus grosse de son drone vedette, Ok mais on ne sait toujours pas s'ils vont faire un Camcopter 2 fois plus gros, 4 fois plus gros etc ... ni pour quelle année il serait disponible

Bon, patience, patience l'industriel autrichien finira bien par en dévoiler plus sur son projet 

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Cet article répond partiellement à ma question plus haut : beaucoup de marines ont signalé que le Camcopter S-100 est d'un gabarit trop modeste pour répondre à leurs besoins sur le moyen-long terme, ce qui a conduit Schiebel à travailler sur une version plus grosse de son drone vedette, Ok mais on ne sait toujours pas s'ils vont faire un Camcopter 2 fois plus gros, 4 fois plus gros etc ... ni pour quelle année il serait disponible

Bon, patience, patience l'industriel autrichien finira bien par en dévoiler plus sur son projet 

Pour l'année, c'est dans l'article :

Schiebel to work on a larger system it hopes to be able to deliver next year.

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Cet article répond partiellement à ma question plus haut : beaucoup de marines ont signalé que le Camcopter S-100 est d'un gabarit trop modeste pour répondre à leurs besoins sur le moyen-long terme, ce qui a conduit Schiebel à travailler sur une version plus grosse de son drone vedette, Ok mais on ne sait toujours pas s'ils vont faire un Camcopter 2 fois plus gros, 4 fois plus gros etc ... ni pour quelle année il serait disponible

Bon, patience, patience l'industriel autrichien finira bien par en dévoiler plus sur son projet 

En parlant de plus gros, les américains rencontrent de gros soucis avec leurs MQ-8b FireScout

Image IPB

Image IPB

Les drones sont cloués au sol, suite aux nombreux crashes ,d'autres sont incapables d'apponter.Sera-t-elle définitive? Les US préparent déjà leurs futurs remplaçants MQ-8C proches des gabarits styles Bell 407.

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  • 2 weeks later...

http://www.wired.com/dangerroom/2012/06/hummingbird/

This month, the Army planned to deploy to Afghanistan an unusual new drone: an unmanned eye-in-the-sky helicopter programmed to use high-tech cameras to monitor vast amounts of territory. But now the drone might be lucky to be deployed at all, as the Army has moved to shut down production — possibly ending the program forever.

That drone would be the A160 Hummingbird, which the Army planned to equip with the powerful Autonomous Real-Time Ground Ubiquitous Surveillance Imaging System, or Argus. But earlier this month, the Army issued a stop-work order — one step away from termination — to the drone’s developer Boeing. The reason? A high “probability of continued technical and schedule delays,” costs and risks that have “increased so significantly that program continuation is no longer in the best interest of the government,” said Donna Hightower, the Army’s acting product manager for unmanned aerial systems modernization.

The A160 was set to be one of the Army’s most radical new drones. The chopper-drone could loiter for 20 hours at up to 15,000 feet, with a range of 2,500 nautical miles. It could observe up to 36 square miles, thanks to its Argus sensors. Also, Argus has a 1.8 gigapixel camera. Viewed through 92 five-megapixel imagers and 65 video windows for zooming in at ultra-high resolution, the the A160 drone would have been well-suited for spying on enemy fighters in vast and remote terrain like in Afghanistan, where three of the drones were scheduled to deploy this month. The A160 has also been sent on special operations workouts.

But the drone had issues. There were delays due to problems with the wiring and “the need for ground testing to get the Argus sensor suite functioning” on the drone, according to Inside Defense (subscription required). On April 17, an A160 crashed during a test flight in California. As the drone was flying between 4,000 and 5,000 feet and around three miles from its runway, “excessive vibration” caused a transmission mount to fail, which caused the drone’s engine to lose power. The drone then went into autorotation mode — a backup in case of engine failure — and crashed, the report adds. Boeing “voluntarily suspended” the program after the crash.

Failures caused by excessive vibration were not supposed to happen, either. The reason is because of the drone’s design: what was supposed to make the A160 different from standard choppers.

Whenever a helicopter changes speed, or (really) when a helicopter changes how fast its rotor blades are moving, there is a risk of potentially fatal vibration. But for standard choppers, rotor blades compensate by being flexible. The number of revolutions per minute is also set at a fixed rate. And normally changing speeds isn’t that much of a problem, because standard helicopters usually have the throttle cranked up during flight.

The A160, however, was designed with light and stiff blades made of tailored carbon fiber. The rotor also had a larger diameter than standard helicopters, among other features. Basically, allowing the drone-chopper to operate in different modes without worrying about vibration. It could travel quickly while transiting, or slow down and loiter — quietly — for long periods. That is, in theory. But if the drone crashed because of vibration, then it could just be promising more than it was able to deliver.

But the Army isn’t giving up on unmanned helicopters. The Marine Corps has its own robot supply helicopter, the K-MAX; and the Army, Navy and Air Force are interested in buying.

The K-MAX is not designed with Argus in mind, though. Years ago, there were rumors Argus could be attached to the Air Force’s Blue Devil 2 airship, in a perfect match of the sensor suite’s panopticon-spying powers and the airship’s ability to stay afloat for days. But then the Blue Devil 2 is being deflated, literally. Earlier this month, the Air Force ordered the airship to be disassembled.

That could leave Argus without a home, packing such a powerful camera, but with no way to use it. A bit like its namesake, then: Argus Panoptes, a giant from Greek mythology known for his all-seeing eyes, until he was blinded and slain.

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  • 2 weeks later...

bonne nouvelle "La France fait l'acquisition de son premier drone naval"

http://www.meretmarine.com/article.cfm?id=120121

Comme dit l'article.

Préparer le programme SDAM

Initialement, la DGA ne devait pas acquérir le Camcopter déployé sur L'Adroit, un patrouilleur d'expérimentation construit sur fonds propres par DCNS et mis à disposition de la marine durant trois ans, avec des moyens prêtés par différents équipementiers. La solution de l'achat s'est, néanmoins, révélée plus pertinente pour des questions règlementaires et de coûts. Propriété de la DGA, le drone sera mis à disposition de la Marine nationale durant trois ans dans le cadre d'un programme d'expérimentation. L'objectif est d'évaluer l'utilisation, la mise en oeuvre et le maintien en condition opérationnelle (MCO) sur une longue période d'un drone aérien embarqué. Cela permettra notamment de déterminer la charge de travail et les procédures logistiques liées à la mise en oeuvre d'un tel système sur un bâtiment de surface.

Cette campagne de longue durée servira aux travaux préparatoires liés au futur programme de SDAM (Système de Drones tactiques Aériens pour la Marine). Il complètera notamment le contrat signé avec DCNS et Thales sur un prototype de système de décollage et d'appontage/atterrissage verticaux automatiques pour drones à voilure tournante. Après avoir mené des essais à terre aux Etats-Unis avec le Little Bird, un drone de 2 tonnes développé par Boeing, la Démonstration technologique d'un système d'appontage et d'atterrissage pour drones (D2AD) comprendra aussi des essais en mer sur un bâtiment de la Marine nationale. Ce n'est qu'une fois toutes ces expérimentations menées à bien que le choix du futur drone de l'aéronautique navale interviendra et que le programme SDAM sera lancé.

Ce SDAM a plus le profil entre un Cabri de Guimbal et un EC120 dronisé.

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Image IPB

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Pour le Camcopter S-100, il semble parfois porter une extension d'entrée d'air sur certaines photos en particulier lors des essais sur l'Adroit. Quelqu'un saurait-il la fonction exacte de cette extension ? De plus, certaines photos rapprochés de ce drone semble montré un filtre à petite maille sur l'entrée d'air. Les versions navales les ont-elles aussi ?

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http://www.flightglobal.com/news/articles/uk-to-trial-rotary-wing-uas-for-navy-applications-374665/

The UK's Defence Equipment & Support (DE&S) organisation is seeking an air vehicle, ground control station and communications link offering "a low probability of delay due to unplanned maintenance or technical issues", the MoD says. The process also should "assess platform integration issues and the impact across the defence lines of development of bringing an RWUAS into service".

Potential prime contractors should submit expressions of interest by 24 August. An invitation to tender is likely to be released on 12 October, with responses to be sought late the following month. The MoD plans to place a contract for the CCD activity on 25 January 2013, with the programme expected to cost up to £4.5 million ($7 million).

An earlier scoping study conducted by DE&S and the state-owned Defence Science and Technology Laboratory (Dstl) "identified the potential of a small or medium rotary-wing UAS to deliver the maritime capabilities being sought", the MoD says. It categorises these classes as covering systems weighing 100-1,000kg (220-2,200lb) and 1,000-3,000kg, respectively.

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  • 2 weeks later...

http://www.flightglobal.com/news/articles/us-navy-details-recent-mq-8b-crashes-374996/

The US Navy has detailed causes of two crashes of the Northrop Grumman MQ-8B Fire Scout that led to an 'operational pause' in flights of the aircraft.

Both crashes occurred independently of one another and involved different systems of the rotary-wing, vertical takeoff unmanned air vehicle (VTUAV). The aircraft were subsequently restricted from flight, a ban that was quickly lifted.

The first crash occurred on 30 March during deployment aboard the USS Simpson, off the coast of West Africa. The aircraft's automated landing system malfunctioned, and the ship's commander decided to ditch the aircraft in the sea. The aircraft floated on the water overnight until the ship's crew was able to recover it the following morning.

The second MQ-8B crashed on 6 April due to a failure of the aircraft's navigation system during an operational mission in northern Afghanistan. The system's failure led to a loss of barometric pressure indication, the measurement used to gauge altitude, and the MQ-8B subsequently crashed.

While the wreckage was recovered, the aircraft was written off. Two aircraft remain deployed to Afghanistan supporting NATO troops in the region.

Four MQ-8Bs are currently deployed aboard the USS Klakring, en-route to a six month cruise off the coast of Horn of Africa, supporting special forces operating in and around Somalia and neighboring nations.

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Boeing Demonstrates Autonomous Ship-based Capability of H-6U Unmanned Little Bird Rotorcraft

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The Boeing Unmanned Little Bird H-6U successfully performed 14 autonomous takeoffs and landings from a ship during flight tests in July, a significant milestone for a medium-size vertical-takeoff-and-landing unmanned airborne system (UAS).

For the tests, conducted from a private ship off the coast of Florida, Boeing integrated a commercial-off-the-shelf takeoff-and-landing system with Unmanned Little Bird's automated flight control system. Two safety pilots were aboard the optionally piloted aircraft to maintain situational awareness and to be able to take control of the aircraft, though that was not required. The aircraft accumulated 20 flight hours with 100 percent availability.

http://www.navyrecognition.com/index.php?option=com_content&task=view&id=557
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For the tests, conducted from a private ship off the coast of Florida, Boeing integrated a commercial-off-the-shelf takeoff-and-landing system with Unmanned Little Bird's automated flight control system.

Le système commercial dont  cause Boing, c'est le système développé par DCNS et Sirenha ??? ?

Vu que DCNS a sélectionné le bidule de Boing comme plateforme pour l'ex programme Devil ...

Ce serait quand même étonnant que Boing mène en parallèle des tests perso avec

Un systeme commercial et d'autre plus sophistiqué avec DCNS !!! :-\

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Le système commercial dont  cause Boing, c'est le système développé par DCNS et Sirenha ??? ?

Vu que DCNS a sélectionné le bidule de Boing comme plateforme pour l'ex programme Devil ...

Ce serait quand même étonnant que Boing mène en parallèle des tests perso avec

Un systeme commercial et d'autre plus sophistiqué avec DCNS !!! :-\

Tiens ,'keske j'disais !

http://www.aviationweek.com/awmobile/Article.aspx?id=/article-xml/asd_08_09_2012_p02-01-484355.xml

Sauf que ces chiens p*ants ne daignent pas mentionner qui a développé le super soft d'appontage ...Il est seulement dit que les prime contractor sont Thales et DCNS

De sorte qu'on comprend pas pourquoi il va y avoir un essai ensuite sur une  classe lafayette

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  • 2 weeks later...

Et hop! deja perdu...  :'( Bon ca fait partie du processus d'apprentissage drones... il va falloir s'y habituer.

...en esperant que ca ne coute pas trop cher.

[box title=Perte en mer du drone Serval]Mardi 21 août 2012, le drone expérimental Serval, embarqué à bord du patrouilleur L’Adroit actuellement déployé au large de l’Afrique, a connu une avarie, probablement d’origine technique, et s’est finalement abimé en mer...

www.defense.gouv.fr/marine/au-fil-de-l-eau/perte-en-mer-du-drone-serval[/box]

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