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Sonntag, 18. August 2013 - 17:45 Uhr

Luftfahrt - Tag der Luft- und Raumfahrt am 22.09.2013

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Wann: 22. September 2013, von 10 bis 18 Uhr

Wo: Deutsches Zentrum für Luft- und Raumfahrt, Linder Höhe, 51147 Köln

Anreise: Bitte reisen Sie zur Veranstaltung möglichst mit öffentlichen Verkehrsmitteln an, zum Beispiel mit der S-Bahn-Linie 13 oder der Regionalbahn bis Köln/Bonn Flughafen, von dort fahren kostenlose Shuttle-Busse zum DLR. Bei der Anreise mit dem Auto stehen Ihnen gesonderte Parkplätze zur Verfügung, die außerhalb des DLR-Geländes liegen. Von diesen Parkplätzen aus fahren kostenlose Shuttle-Busse zum DLR.

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Am Sonntag, den 22.September 2013, veranstaltet das DLR gemeinsam mit seinen Partnern - der Europäischen Weltraumorganisation ESA, dem Flughafen Köln/Bonn und der Luftwaffe - den "Tag der Luft- und Raumfahrt" in Köln. An diesem Tag öffnen die Forschungsinstitute ihre Türen und stellen den Besucherinnen und Besuchern ihre Arbeiten vor. Erleben Sie Spitzenforschung in Luft- und Raumfahrt, Energie und Verkehr hautnah. Astronauten, wie beispielsweise Alexander Gerst, der nächstes Jahr zur Internationalen Raumstation ISS fliegen wird, berichten über ihre Arbeit und das Leben als Raumfahrer. Schirmherrin der Veranstaltung ist Dr. Angela Merkel, Bundeskanzlerin der Bundesrepublik Deutschland.

Für Kinder gibt es ein ganz besonderes Programm: Als so genannte VIP-Kids können sie an kindgerechten Führungen in die Institute und Labore teilnehmen - hier erwarten sie unsere Wissenschaftlerinnen und Wissenschaftler mit coolen Mitmach-Aktionen. Außerdem gibt es ein tolles Bühnenprogramm und jede Menge Attraktionen.

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Am Tag der Luft- und Raumfahrt am 22. September 2013 öffnen die Forschungsinstitute des DLR in Köln-Porz ihre Türen. Erleben Sie Astronauten, lernen Sie, was die Luft- und Raumfahrtmedizin den Menschen auf der Erde bringt, erfahren Sie, was Triebwerke der Zukunft leisten oder wie Hightech-Werkstoffe für Energietechnik, Luft- und Raumfahrt entstehen. Informieren Sie sich über Weltraum-Missionen und werfen Sie einen Blick in das Kontrollzentrum MUSC. Hier finden Sie einige der Attraktionen, die Sie an diesem Tag besuchen können:

  • Institut für Flughafenwesen: Live - der Luftverkehr rund um Köln-Bonn
  • Simulations- und Softwaretechnik: 3D-Marsflug und Pilotentests
  • Institut für Solarforschung: Mit der Kraft der Sonne - Solarforschern über die Schulter geschaut
  • Werkstätten des Systemhaus Technik: Vom virtuellen Produkt zum fertigen Windkanalmodell
  • Visite im nagelneuen :envihab: Forschung für Weltraum und Erde
  • Das Europäische Astronautenzentrum EAC der ESA
  • Sonnenofen: Mit der Kraft der Sonne - Forschung am Sonnenofen und auf dem Solartestfeld
  • CerastorE: Zentrum für Energieforschung, thermische Speichertechnologien und keramische Werkstoffe
  • Kontrollzentrum für Raumfahrtexperimente: Mission ins All
  • Heiße Windkanäle der Über- und Hyperschalltechnologie: Feuertaufe fürs All
  • Kryo-Kanal Köln: Der kälteste Windkanal Europas
  • Windkanäle der Über- und Hyperschalltechnologie: Schneller als der Schall
  • Institut für Antriebstechnik: Triebwerke der Zukunft -  warum fliegt ein Flugzeug?
  • Institut für Werkstoff-Forschung: Werkstoffe für Morgen

Einzigartige Forschungsflugzeuge am "Tag der Luft- und Raumfahrt 2013"

Parabelflüge wurden ursprünglich für das Schwerelosigkeitstraining von Astronauten initiiert. Heute werden sie hauptsächlich für wissenschaftliche Experimente in Schwerelosigkeit (Mikrogravitation) und zum Testen von Raumfahrttechnologien eingesetzt. In Europa werden Parabelflug-Kampagnen etwa mit einem Testflugzeug des Typs Airbus A300 ZERO-G vom Flughafen Bordeaux-Mérignac in Frankreich aus durchgeführt.

Die Fluggebiete liegen über dem Atlantik oder dem Mittelmeer. Genutzt werden die von der französischen Firma Novespace angebotenen Fluggelegenheiten vom Deutschen Zentrum für Luft- und Raumfahrt (ein- bis zweimal pro Jahr), von der Europäischen Weltraumorganisation ESA (circa drei Kampagnen pro Jahr) und von der französischen Raumfahrtagentur CNES (ein- bis zweimal pro Jahr). Außerdem veranstaltet die ESA jährlich einen Parabelflug für Studenten.

Ein DLR-Parabelflug besteht in der Regel aus drei Flugtagen zu je drei bis vier Flugstunden, an denen jeweils 31 Parabeln geflogen werden. Dabei steigt das Flugzeug aus dem horizontalen Flug steil nach oben, drosselt die Schubkraft der Turbinen und fliegt dabei eine Parabel, bei der für etwa 22 Sekunden Schwerelosigkeit herrscht. Insgesamt stehen so bei einer Kampagne etwa 35 Minuten Schwerelosigkeit - im Wechsel mit normaler und doppelter Erdbeschleunigung - zur Verfügung, die Forscher für ihre Experimente nutzen können.

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In der Flugzeugausstellung können die Besucherinnen und Besucher des Tags der Luft- und Raumfahrt die einzigartigen Maschinen der DLR-Forschungsflotte besichtigen: den modernsten Hubschrauber der Welt EC135 FHS, die Cessna 208B Grand Caravan, einen "fliegenden Hörsaal", das größte DLR-Forschungsflugzeug Airbus A320 ATRA, die Dassault Falcon 20E, den Eurocopter BO105 und das Parabelflugzeug Airbus A300 ZERO-G. Dieses ist ab mittags begehbar.

Außerdem sind eine Boeing 777 von FedEx, eine Boeing 767-300 von UPS sowie der AS 332 L1 Super Puma der Bundespolizei mit dabei. Weiter Flugzeuge werden noch hinzukommen, also schauen Sie immer mal wieder auf dieser Seite vorbei, um auf dem neuesten Stand zu sein.

Wichtiger Hinweis: Letzter Einlass zur Flugzeugausstellung ist um 17 Uhr.

Kinderprogramm: VIP-Kids

Heute dreht sich fast alles um Euch! Für uns seid Ihr die VIPs! Freut Euch auf ein tolles Bühnenprogramm, viele Attraktionen und unsere sechs Führungen in die Institute und Labore - hier erwarten Euch unsere Wissenschaftlerinnen und Wissenschaftler mit coolen Mitmach-Aktionen und sind gespannt auf Eure Fragen.

Eure Führungen:

    • Führung zur Zulu-Platte, auf der die Flugzeuge stehen
      Ihr denkt, dass ATRA der Name eines der Monster ist? Dann solltet Ihr unbedingt zur ZULU-Platte gehen. Da könnt Ihr Euch anschauen, wer oder was das wirklich ist. Ein Tipp: Die beiden haben große Flügel. Geht sie mal besuchen. Es lohnt sich!

    • Führung zum Europäischen Astronautenzentrum EAC, zum :envihab und zum Nutzerzentrum für Weltraumexperimente MUSC
      Wer kann am weitesten springen? Das ist hier die Frage. Du willst es herausfinden? Ganz einfach: Mach beim Wettbewerb mit! Wenn Du Dich danach ausruhen willst, schaust Du Dir den kurzen Kinofilm an und gehst zu Rosetta, dort gibt es noch einen Vortrag, anschließend kannst Du die Wissenschaftler mit Fragen löchern! Sie freuen sich schon auf Dich.

    • Führung zum Institut für Werkstoff-Forschung und zu den Werkstätten
      Hier warten ein kniffliges Zylinder-Ratespiel und ein Quiz auf Dich, wo Du Dein Wissen testen kannst. Danach kannst Du Dich im Experimentieren üben und vielleicht gibt es sogar eine Überraschung, wenn Du beim Vortrag in der Werkstatt warst…

    • Führung zu den Solarforschern und Simulationstechnikern
      Auf der Suche nach kleinen grünen Marsmännchen? Dann schnell zur Simulation- und Softwaretechnik, wo Du mit einer Infrarotkamera nicht nur den Mars erforschen, sondern auch verrückte Fotos von dir selber machen lassen kannst. Und wenn Dir das alles nicht genug ist, zoome Dich mit einem Teleskop nah an die Sonne oder probiere das tolle Legospiel aus.

    • DLR_School_Lab
      Im Schülerlabor des DLR könnt Ihr experimentieren wie die ganz Großen.

  • Führung zu den Windkanälen, zum Institut für Antriebstechnik und dem Institut für Aerodynamik
    Wind, Wind und nochmal Wind. Hier dreht sich alles um das eine. Ihr könnt Euch einen Vortrag zum Windkanal anhören, ein Infrarot-Spiel ausprobieren oder Ihr schaut Euch Modelle von Windkanälen an, spürt den Luftstrom. Dazu gibt’s dann noch ein Ratespiel am iPad.

3414 Views

Sonntag, 18. August 2013 - 17:18 Uhr

Luftfahrt - Mehr Sicherheit im Flugverkehr: Turbulenzen rechtzeitig erkennen

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Kelvin-Helmholtz-Cirren durch Verwirbelungen in der Luft

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Viele Fluggäste kennen das Phänomen: der Himmel ist strahlend blau, das Flugzeug befindet sich im ruhigen Reiseflug, der jedoch unvermittelt durch eine vorübergehende Turbulenz gestört wird. Diese wird von den Passagieren häufig als eine Art "Luftloch" wahrgenommen. Der tatsächliche Grund für die unangenehme Änderung der Flughöhe ist eine sogenannte "clear air turbulence" – eine Turbulenz, die unabhängig von Bewölkung auftritt, nicht sichtbar und nicht genau vorhersagbar ist. Für Passagiere und Besatzung in der Kabine bedeutet dies bei starken Turbulenzen eine erhöhte Sturz- und Unfallgefahr. In der Atmosphärenforschung gibt es zudem neueste Hinweise darauf, dass diese Turbulenzen aufgrund des Klimawandels künftig verstärkt im Luftverkehr auftreten und diesen damit noch weiter belasten werden. Eine Methode zur Erkennung der Turbulenzen wurde nun erstmals im Rahmen des europäischen Verbundprojekts DELICAT (Demonstration of LIDAR based Clear Air Turbulence detection) entwickelt. Die neue Technologie wird aktuell vom Deutschen Zentrum für Luft- und Raumfahrt (DLR) zusammen mit den Projektpartnern erprobt. Die aktuelle Messflugkampagne findet bis Ende August statt. Die Flugroute führt von Amsterdam aus über ganz Europa.

Entstehung der Turbulenz

Entlang des Jetstreams entstehen häufig Windscherungen – ausgedehnte Luftschichten, die sich mit unterschiedlichen Geschwindigkeiten horizontal gegeneinander bewegen. Besonders starke Windscherungen können Wellen ausbilden, die schließlich auch brechen können – ganz wie eine Welle auf dem Wasser. Der Bruch einer Welle verursacht Verwirbelungen in der Luft beziehungsweise eine Turbulenz – die "clear air turbulence" (CAT).

Sobald ein Flugzeug auf diese Turbulenz trifft, verändert sich an den Tragflächen der Anstellwinkel der Luftströmung. Die Folge sind die bekannten Schwankungen im Auftrieb des Flugzeugs. CATs sind bislang ein unvermeidbares Phänomen für den Flugverkehr, da diese verwirbelten Luftmassen im klaren Himmel weder für das Auge sichtbar, noch mit Sensoren messbar sind.

Eine Lösung ist aber in Sicht: Die Luftturbulenzen können künftig berechnet werden, die notwendigen Daten soll ein Messverfahren per Laser liefern. Idee ist es, geringste Änderungen in der Dichte und der Geschwindigkeit der Luft auf der Strecke voraus zu identifizieren und dadurch CATs aus der Entfernung zu erkennen und vorherzusagen.

Messung per Laser

Forscher am DLR-Institut für Physik der Atmosphäre haben dafür ein laserbasiertes Messgerät entwickelt: Ein LIDAR-Instrument (Light Detecting and Ranging) wird am Flugzeug angebracht und sendet in Flugrichtung kurzwellige UV-Laserstrahlen. Aus dem gemessenen Rückstreu-Wert der Luftmoleküle, Sauerstoff und Stickstoff, wird die Dichte der Luft bestimmt. Schwankungen in der Dichte geben dann Aufschluss über dort herrschende Turbulenzen. Die indirekt gewonnenen Informationen ermöglichen eine spezifische Analyse der Luft des zu durchfliegenden Bereichs: So werden "clear air turbulences" für die kommende Strecke im Voraus sichtbar.

Messinstrumente eigens entwickelt

Die aktuell stattfindenden Testflüge des Projekts "DELICAT" dienen zur Demonstration des Messverfahrens und der Funktionsfähigkeit der neuen Technologie. Dafür ist das Forschungsflugzeug PH-LAB des niederländischen Partners National Aerospace Laboratory (NLR) im Einsatz, eine modifizierte Cessna Citation. Für die Lasermessungen ist das UV-LIDAR System eingebaut, das vom DLR-Institut für Physik der Atmosphäre speziell entwickelt wurde.

Nach erfolgreichem Abschluss des Messflugkampagne folgt die Auswertung der Daten. Dank der umfassenden Messergebnisse zu den "clear air turbulences" werden die Forscher nicht nur in der Lage sein, ihre neue Technologie zu demonstrieren. Zusätzlich wird ihnen der einmalige Datensatz wichtige Erkenntnisse zu den Entstehungsmechanismen und komplexen atmosphärischen Prozessen liefern. Langfristiges Ziel ist es, ein integriertes Erkennungssystem zur Vermeidung von Luftturbulenzen zu entwickeln. Zukünftig könnten Piloten dann in der Flugzeugkabine den Hinweis ausgeben zum Sitzplatz zurückzukehren und den Sicherheitsgurt anzulegen, oder gar entsprechende Regionen umfliegen.

Über das Projekt

"DELICAT" (Demonstration of LIDAR based Clear Air Turbulence detection) ist ein von der Europäischen Union gefördertes Verbundprojekt. Es wurde 2009 gestartet und endet im März 2014. Insgesamt 12 Partner aus sieben EU-Ländern sind an dem Verbundprojekt beteiligt: Projektkoordinator THALES, das Deutsche Zentrum für Luft- und Raumfahrt (DLR), Centre National de la Recherche Scientifique (CNRS), Hovemere, Météo France, Nationaal Lucht- en Ruimtevaartlaboratorium (NLR), Office National d’Etudes et de Recherches Aérospatiales (ONERA), National Institute of R&D for Optoelectronics (INOE), A. M. Obukhov Institute of Atmospheric Physics (RAS), Laser Diagnostic Instruments, Interdisciplinary Centre for Mathematical and Computational Modelling/Warsaw University sowie die EADS Deutschland GmbH. Das Projekt wird ermöglicht durch das Siebte Rahmenprogramm der Europäischen Kommission (FP7/2007-2013) unter Grant-Agreement Nr. 233801.

Quelle: DLR


Tags: DELICAT 

2951 Views

Sonntag, 18. August 2013 - 14:00 Uhr

Raumfahrt - NASA Voyager Statement über konkurrierende Modelle zu aktuellen Raumsonden-Daten

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A newly published paper argues that NASA's Voyager 1 spacecraft has already entered interstellar space. The model described in the paper is new and different from other models used so far to explain the data the spacecraft has been sending back from more than 11 billion miles (18 billion kilometers) away from our sun.

NASA's Voyager project scientist, Ed Stone of the California Institute of Technology in Pasadena, explains:

"Details of a new model have just been published that lead the scientists who created the model to argue that NASA's Voyager 1 spacecraft data can be consistent with entering interstellar space in 2012. In describing on a fine scale how magnetic field lines from the sun and magnetic field lines from interstellar space can connect to each other, they conclude Voyager 1 has been detecting the interstellar magnetic field since July 27, 2012. Their model would mean that the interstellar magnetic field direction is the same as that which originates from our sun.

Other models envision the interstellar magnetic field draped around our solar bubble and predict that the direction of the interstellar magnetic field is different from the solar magnetic field inside. By that interpretation, Voyager 1 would still be inside our solar bubble.

The fine-scale magnetic connection model will become part of the discussion among scientists as they try to reconcile what may be happening on a fine scale with what happens on a larger scale.

The Voyager 1 spacecraft is exploring a region no spacecraft has ever been to before. We will continue to look for any further developments over the coming months and years as Voyager explores an uncharted frontier.”

The Voyager spacecraft were built and continue to be operated by NASA's Jet Propulsion Laboratory, in Pasadena, Calif. Caltech manages JPL for NASA. The Voyager missions are a part of NASA's Heliophysics System Observatory, sponsored by the Heliophysics Division of the Science Mission Directorate at NASA Headquarters in Washington.

Quelle: NASA


Tags: Voyager 1 spacecraft 

2893 Views

Sonntag, 18. August 2013 - 13:30 Uhr

Raumfahrt - NASA hat bei Orion-Kapsel Entwicklungsprobleme welche durch Budget verursacht werden

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The space capsule that NASAhopes will one day fly astronauts to a nearby asteroid is beset by funding problems and technical glitches that could delay a first crewed mission that already won't launch until 2021, according to a watchdog report released Thursday.

The findings by NASA's inspector general cast more doubt on the future of a spacecraft that was nearly canceled in 2010, when President Barack Obama shelved NASA's troubled Constellation moon program because of similar concerns about cost and technical risk.

Though the Orion capsule designed for Constellation ultimately survived the budget ax -- and since has been folded into NASA's latest human spaceflight program -- many of the same worries have persisted.

"The [Orion] Program faces significant risks in meeting NASA's goal of human exploration beyond low Earth orbit," noted investigators.

The material used on its heat shield has been known to "crack under thermal conditions" similar to what the capsule could experience in the "deep space environment," the report found. And engineers are struggling to get the capsule's weight below a 73,500-pound maximum.


Both problems must be fixed. And that intensifies the capsule's biggest problem: not enough money.

Under its current design, Orion could carry a four-person crew on missions lasting up to three weeks. NASA's latest plan calls for putting the capsule atop NASA's newest rocket, the Space Launch System, and blasting astronauts to a nearby asteroid as early as 2021.

But between 2011 and 2013, the Orion project received only about $3.6 billion – or roughly $1.8 billion less than what NASA envisioned – forcing cutbacks that investigators said could haunt NASA in future years.

Inspector General Paul Martin, who acts as an internal agency watchdog, noted that NASA has delayed development of some avionics and a life-support system. It also postponed – until 2018 – a test of the abort system that would separate the capsule from a rocket if something went wrong during liftoff

NASA managers said the delays were necessary to focus limited resources on the two unmanned test flights planned for 2014 and 2017. Neither life-support systems nor escape capabilities are needed for launches that aren't carrying astronauts.

Even so, Martin and his team warned that the postponements could cause long-term problems if trouble arises in the development of either of these areas.

"While this [strategy] may be the only realistic and affordable development approach available to NASA given the program's current funding profile, such an approach increases risks," they noted.

NASA responded to the report with a statement that noted its engineers had made "significant progress in mitigating the technical risks" highlighted in the report. It also called on Congress to give the agency more money to deal with funding issues.

Quelle: Orlando Sentinel


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Sonntag, 18. August 2013 - 11:00 Uhr

Raumfahrt - Russische Kosmonauten führen 6-Stunden-Weltraumspaziergang durch

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16.08.2013

MOSCOW, August 16 (RIA Novosti) – Two Russian crew members on board the International Space Station (ISS) will carry out a spacewalk on Friday to install equipment for the arrival of a new Russian module, Russia’s Mission Control Center said.

Flight Engineers Fyodor Yurchikhin and Alexander Misurkin are expected to open the Pirs airlock hatches at 06.40 pm Moscow time [14:40 GMT] and will return to the ISS at 01:19 am Moscow time on August 17 [21:19 GMT Friday], a Mission Control spokesman said Thursday.

The two cosmonauts will continue routing power and Ethernet cables for the future arrival of the Russian Multipurpose Laboratory Module (MLM), which will be launched aboard a Proton-M rocket from the Baikonur space center in Kazakhstan later this year.

They will also install a new panel of Vynoslovost (Endurance) experiments designed to collect data on the effects of the microgravity environment in low-Earth orbit.

The six-and-a-half-hour spacewalk will be the seventh in Yurchikhin’s career and the second for Misurkin. Both cosmonauts conducted a similar spacewalk on June 24.

The spacewalk on Friday will be the 172nd in support of assembly and maintenance performed on the $100-billion orbiting laboratory built by 15 countries.

Quelle: RIANOVOSTI

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Clad in Russian Orlan spacesuits, Expedition 36 Flight Engineers Fyodor Yurchikhin and Alexander Misurkin opened the hatch to the Pirs docking compartment to begin their spacewalk at 10:39 a.m. EDT. The duo will spend about 6.5 hours rigging cables for the future arrival of a Russian laboratory module and installing an experiment panel.

The cosmonauts will first set up a Strela cargo boom on the Poisk mini-research module so Misurkin can maneuver Yurchikhin with cables to the Zarya module near the Unity node. Yurchikhin will then begin rerouting a cable connector and installing cables on Zarya.

While Yurchikhin is working on Zarya, Misurkin will be installing an experiment panel on Poisk. The experiment, named Vinoslivost, exposes materials to the space environment so scientists can study the changes in their properties. He will then install two connector patch panels and gap spanners on Poisk.

After completing the Poisk work Misurkin will join Yurchikhin and assist him with the Ethernet cable installation work on the Zarya cargo module. The duo will go back and forth between Zarya and Poisk routing and installing the cable at various points and securing the cable’s slack.

Once the cable installation is complete the spacewalkers will translate to Pirs and conduct an inventory of their spacewalk tools. The duo will then reenter Pirs and close its hatch officially ending Russian EVA 34. If Yurchikhin and Misurkin are ahead of their timeline they may be able to reposition and stow the Strela cargo boom.

The cable work outside the station’s Russian segment prepares the orbital laboratory for the arrival of the “Nauka” Multipurpose Laboratory Module. The “Nauka” is planned for a launch atop a Russian Proton rocket to replace Pirs.

For the duration of the spacewalk, station Commander Pavel Vinogradov and Flight Engineer Chris Cassidy will be isolated to the Poisk module and their Soyuz TMA-08M spacecraft while Flight Engineers Karen Nyberg of NASA and Luca Parmitano of the European Space Agency will be free to move about the U.S. segment of the complex.

The spacewalk is the 172nd in support of station assembly and maintenance, the seventh in Yurchikhin’s career and the second for Misurkin. The two will venture outside Pirs again on Aug. 22 to replace a laser communications experiment with a platform upon which a small optical telescope will be mounted during a future spacewalk.

Quelle: NASA

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Frams: NASA-TV-LIVE von Spacewalk

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Update: 18.08.2013

Cosmonauts return to airlock to conclude marathon spacewalk

Cosmonauts Fyodor Yurchikhin and Alexander Misurkin returned to the safety of the International Space Station's Pirs airlock compartment Friday after a trouble-free spacewalk, setting a new Russian endurance record with a seven-hour 29-minute excursion.
The cosmonauts ran ahead of schedule most of the day, successfully unreeling and routing two long power lines and an ethernet cable along the outside of the Zarya storage module that will be connected to the new Nauka laboratory after its arrival next year.

Misurkin also mounted a space exposure experiment pallet on a handrail outside the upper Poisk module.
The cosmonauts extended a telescoping space crane early on to help move large cable reels from Pirs to Zarya. They originally planned to leave the Strela 1 boom extended, but flight controllers opted to lengthen the spacewalk to give the cosmonauts time to retract it.

The spacewalk began at 10:36 a.m. (GMT-4; time revised by Russian mission control) and ended at 6:05 p.m. when the Pirs airlock hatch was closed.

The seven-hour 29-minute duration set a new Russian spacewalk record, eclipsing the old mark of seven hours and 16 minutes set by two cosmonauts outside the Mir space station in 1990. Two NASA astronauts hold the record for longest spacewalk ever conducted, a marathon eight-hour 56-minute excursion in 2001.

Today's EVA was the 172nd devoted to station assembly and maintenance since construction began in 1998, the sixth so far this year, the seventh for Yurchikhin and the second for Misurkin. Today's EVA pushed Yurchikhin's total time outside to 45 hours and 55 minutes, moving him up to 12th on the list of most experienced spacewalkers.

As it now stands, 112 astronauts and cosmonauts representing nine nations have logged 1,082 hours and 51 minutes of ISS EVA time -- 45.1 days -- building and servicing the space station.

The next major assembly task will be attachment of the Nauka -- "science" -- multi-purpose laboratory module.

The Russians originally planned to launch the MLM aboard a Proton rocket at the end of the year, but officials say the flight is expected to slip several months into the spring of 2014.

During the past several spacewalks, astronauts and cosmonauts have been installing cables and attachment fittings needed to route power and data to and from the new module, which will replace the Pirs airlock and docking compartment.

The Russians eventually plan to launch a multi-hatch node that will be attached to Nauka's Earth-facing end, providing additional ports and the attachment point for a Russian solar power module that will extend to the right side of the space station.

Yurchikhin and Misurkin plan to venture back outside next Thursday to install a telescope mounting platform and to remove docking components from Pirs.

Quelle: CBS

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Expedition 36 Cosmonauts Break EVA Record

It was a record that hadn’t been challenged since the days of Mir in 1990, but on Friday, Aug. 16, it was smashed by Expedition 36′sRussian flight engineers Fyodor Yurchikhin and Aleksandr Misurkin: longest Russian extravehicular activity (EVA).

The cosmonauts broke the 23-year-old record with their International Space Station (ISS) EVA, which stood at seven hours and 16 minutes, by 13 minutes. This time stands at stark contrast to the early days of the agency’s EVAs; cosmonaut Alexei Leonov’s historic 1965 spacewalk on Voskhod 2 lasted merely 12 minutes.

 

Yurchikhin and Misurkin spent these hours rigging cables for a multipurpose laboratory module, “Nauka” (Science), which is scheduled to launch aboard a Russian Proton rocket in December. The spacewalk began at 10:36 a.m. EDT after Russian Orlan suits were donned. After the cosmonauts installed the Strela cargo boom on the Poisk module, Misurkin used the boom to send Yurchikhin and equipment to the Zarya module. Yurchikhin rerouted connectors and installed cable crucial to the installation of the future module, which will replace Pirs.

In the meantime, Misurkin worked on installing an experiment panel on Posik, “Vinoslivost.” This panel will expose different materials to space in order to gauge changes in their properties. Following Misurkin’s activities (he also installed two connector patch panels and gap spanners), he joined his colleague at Zarya, where the two worked together to install lengths of Ethernet cable. The cosmonauts ended their spacewalks at 6:05 p.m. EDT with the closing of the Pirs module’s docking compartment hatch.

This EVA marked the seventh spacewalk for Yurchikhin and the second for Misurkin. The cosmonauts will have a chance to add more EVA time to their careers, as they are both scheduled to venture outside of Pirs on August 22 to mount a telescope platform.This EVA comes exactly a month after a harrowing spacewalk for Italian ESA astronaut Luca Parmitano. While he ventured outside of the ISS with NASA astronaut Chris Cassidy, he realized his helmet was beginning to fill with water. The EVA was aborted at one hour, 32 minutes. Parmitano’s entry back into the ISS was expedited, and while he ultimately was fine, the scare prompted an investigation by NASA that is still ongoing. Thankfully, today’s EVA seemed to go off without a hitch.

Quelle: NASA


Tags: Expedition 36 EVA-3 

2826 Views

Samstag, 17. August 2013 - 06:00 Uhr

Raumfahrt - US-NAVY testet die Bergung der zukünftigen NASA-Raumsonde Orion

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15.08.2013

Sailors assigned to the amphibious transport dock Arlington recover an Orion capsule into the well deck of Arlington as part of NASA's first key Orion stationary recovery test at Norfolk Naval Station on Aug. 13, 2013. NASA is partnering with the U.S. Navy to develop procedures to recover the Orion capsule and crew after splashdown. (Seaman Andrew Schneider | U.S. Navy)

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A test of recovery operations for NASA’s newest manned space capsule will continue Thursday at Norfolk Naval Station.

A mock-up of the Orion spacecraft will be used in the dockside test, during which the amphibious transport dock Arlington will flood its well deck to bring in the capsule.

An open-water test of the recovery system will take place next year. Orion is scheduled for a test flight in September 2014. 

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Quelle: US-NAVY

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Update: 17.08.2013

NASA & US Navy Test Demonstrates Water Recovery of Orion Crew Capsule


NAVAL STATION NORFOLK,VA – When American astronauts again venture into deep space sometime in the next decade, their return trip to Mother Earth will end with the splashdown of their Orion capsule in the Pacific Ocean – much like the Apollo lunar landing crews of four decades ago.

But before that can happen, Orion must first pass through a myriad of milestones to insure the safe return of our human crews.

A NASA and U.S. Navy test successfully demonstrated the water recovery of the Orion crew module today (Aug. 15) at Naval Station Norfolk in Virginia – and Universe Today witnessed the entire operation.

“Today’s test was terrific,” Scott Wilson, NASA’s Orion Manager of Production Operations, told Universe Today in a post test interview at Naval Station Norfolk.

“We got all the data we needed and the test was very successful. This was exactly what we wanted to do and we don’t like surprises.”

Today’s ‘Orion Stationary Recovery Test’ was conducted to support the upcoming first flight of Orion on the EFT-1 mission due to blastoff in September 2014 from Cape Canaveral, Florida.

“We completed all of our primary and secondary test objectives,” Wilson stated.

Teams of US Navy divers in a flotilla of amphibious boats launched from the USS Arlington approached a test version of the Orion capsule known as the boilerplate test article (BTA). The Arlington was docked against its pier during the test in a benign, controlled environment.

Divers attached several tow lines to the capsule, in a coordinated operation with the Arlington, and led the capsule into the ship’s flooded well deck.

The Orion capsule was carefully towed inside the well deck and positioned over the recovery cradle. The sea water was drained and the capsule was attached to the recovery cradle.

“During the test there is constant radio communications between the ship and the divers teams in the boats.”

“The operation within the well deck areas are also being controlled as well as the rope and winch handlers on the boat,” Wilson told me.

At the conclusion of the test, myself and the NASA social media participants boarded the USS Arlington and toured the Orion capsule for a thrilling up close look.

“Today marks a significant milestone in the Navy’s partnership with NASA and the Orion Human Space Flight Program,” said Navy Commander Brett Moyes, Future Plans Branch chief, U.S. Fleet in a statement.

“The Navy is excited to support NASA’s continuing mission of space exploration. Our unique capabilities make us an ideal partner for NASA in the recovery of astronauts in the 21st century — just as we did nearly a half century ago in support of America’s quest to put a man on the moon.”

The ocean recovery of Orion will be far different from the Apollo era where the crew’s were first hoisted out of the floating capsule and the capsule then hoisted on deck of a US Navy aircraft carrier.

The next Orion water recovery test will be conducted in the open waters of the Pacific Ocean in January 2014.

NASA’s Langley Research Center in nearby Hampton, VA is conducting an extensive drop test program in support of the Orion project.

“The Orion capsule tested today has the same mold line and dimensions as the Orion EFT-1 capsule.”

“The Orion hardware and the Delta IV Heavy booster for the EFT-1 launch are on target for launch in 2014,” Wilson told me.

During the unmanned Orion EFT-1 mission, the capsule will fly on a two orbit test flight to an altitude of 3,600 miles above Earth’s surface, farther than any human spacecraft has gone in 40 years.

The EFT-1 mission will provide engineers with critical data about Orion’s heat shield, flight systems and capabilities to validate designs of the spacecraft before it begins carrying humans to new destinations in the solar system, including an asteroid and Mars.

It will return to Earth at a speed of approximately 20,000 mph for a splashdown in the Pacific Ocean.

Right now its T Minus 1 Year and counting to liftoff of Orion EFT-1.

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Quelle: NASA
















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Freitag, 16. August 2013 - 22:42 Uhr

Raumfahrt - ISS-Überflug über Odenwald/Südhessen

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Foto: hjkc


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Freitag, 16. August 2013 - 16:30 Uhr

Luftfahrt - 20 Jahre B-2 USAF-Einsätze

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Off to the runway!

B-2 Spirits from the 509th Bomb Wing taxi towards the runway at Whiteman Air Force Base, Mo. July 25th, 2013. The B-2 brings massive firepower to bear, in a short time, anywhere on the globe through previously impenetrable defenses. (U.S. Air Force photo by Staff Sgt. Nick Wilson/Released)

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Up, up and away!

A B-2 Spirit from the 509th Bomb Wing lifts off of the runway at Whiteman Air Force Base, Mo. July 25th, 2013. The B-2’s low-observable, or "stealth," characteristics give it the unique ability to penetrate an enemy's most sophisticated defenses and threaten its most valued, and heavily defended, targets. (U.S. Air Force photo by Staff Sgt. Nick Wilson/Released)

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Whiteman B-2 Spirit

A B-2 Spirit, the “Spirit of South Carolina,” stands ready for maintenance inside a dock at Whiteman Air Force Base, Mo., May 3, 2013. Whiteman is home to 20 B-2s that are ready to defend the country at a moment’s notice. (U.S. Air Force photo by Airman 1st Class Shelby R. Orozco/Released)

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The darkness before the dawn

Three B-2 Spirit Bombers prepare for flight at Whiteman Air Force Base, Mo., April 25, 2013. Also known as the Stealth Bomber, the aircraft is a strategic bomber, featuring low-observable stealth technology designed for penetrating dense anti-aircraft defenses. The bomber has a crew of two and can drop up to eighty 500-pound joint direct attack munitions (JDAMS). The B-2 is the only aircraft that can carry large air-to-surface standoff weapons in a stealth configuration. (U.S. Air Force Photo by Staff Sgt. Alexandra M. Boutte/Released)

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First B-2 surpasses 7,000 flight hours

U.S. Air Force B-2 Spirit crew chiefs stand ready to perform maintenance on the “Spirit of Florida” after completing a historic training mission in which it became the first B-2 to reach 7,000 flight hours, Whiteman Air Force Base, Mo., April 1, 2013. Major Benjamin Kaminsky flew this historic mission, and crew chief Airman 1st Class Elijah Noel landed the aircraft. (U.S. Air Force photo by Airman 1st Class Keenan Berry/Released)

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Working deep in the night

WHITEMAN AIR FORCE BASE, Mo. -- Airmen from the 509th Aircraft Maintenance Squadron work through a swing shift to perform routine maintenance on a B-2 Spirit Oct. 28. A team of skilled technicians can inspect and reassemble most components of a B-2 faster than most auto repair companies can replace a transmission. (U.S. Air Force photo/Senior Airman Nick Wilson) (Released)

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The Spirit of NORE

A B-2 Spirit taxis during a Nuclear Operational Readiness Exercise at Whiteman Air Force Base, Mo., Aug. 29. Eight B-2s were generated simultaneously in a moment's notice, supporting the Whiteman mission of safely, securely and effectively providing combat ready forces for nuclear deterrence and global strike operations. (U.S. Air Force photo/Senior Airman Cody H. Ramirez)

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Quelle: USAF

 


Tags: Year of the B-2 USAF-B-2 

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Freitag, 16. August 2013 - 15:22 Uhr

Luftfahrt - Eglin AFB F-35-Flotte überschreitet 2000 Training Einsätze

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A U.S. Marine Corps plane captain, known as a crew chief in the Air Force, marshals out an F-35B Lightning II short takeoff and vertical landing variant of the aircraft May 22, 2013, at Eglin Air Force Base. The maintainer orchestrated a "hot pit" ground refueling, running the engine while receiving fuel, allowing it to take off immediately afterward for another training sortie. Assigned to the Marine Fighter Attack Training Squadron-501, the plane captain helped train up 24 U.S. and United Kingdom pilots flying the B variant to date by having aircraft ready for the daily flight operations.

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EGLIN AIR FORCE BASE, Fla. (AFNS) --

Airmen and Marines assigned to the F-35 Integrated Training Center at the 33rd Fighter Wing here have consistently flown successful training sorties and generated their 2,000th sortie Aug. 13 with an instructor pilot of the Marine Fighter Attack Training Squadron-501 (VMFAT-501), at the controls.

 

Marine Maj. Adam Levine, who flew in a two-ship formation, said he was surprised with the news upon landing but said that is typical since the flightline members are focusing on safe and effective flying rather than keeping pace with data tracked by those in statistical analysis.

 

“Every sortie, every takeoff, every hour is a win for the F-35 enterprise,” he said. From his cockpit, Levine also witnessed the first taxi of the U.S. Navy’s F-35C carrier variant preparing for its maiden flight from Eglin AFB.

 

With the Air Force, Marine Corps and Navy pressing forward to meet goals of initial operating capability in the next few years for their respective services, getting ample time in the air is crucial to meeting their timelines.

 

“Flying the 2,000th sortie highlights the accomplishments of the entire F-35 airpower team at Eglin AFB and moves us one step closer to the aircraft’s initial war fighting capability,” said Col. Todd Canterbury, the commander of the 33rd FW.

 

The Eglin AFB F-35A, B, and C variant joint training has been accomplished while operational and developmental test missions at flight test sites on the east and west coasts have been conducted simultaneously -- a process known as concurrency.

 

In these last couple weeks, Eglin AFB officials sent a handful of their pilots to Luke Air Force Base Ariz., to become the initial cadre of F-35A leaders at the 61st Fighter Squadron, 56th Fighter Wing, said Col. Stephen Jost, the commander of the 33rd Operations Group here. Luke AFB’s first joint strike fighters are scheduled to arrive in spring 2014 with plans to grow to 144 aircraft in the out years.

 

For now, the Eglin AFB-based flyers are expanding their training curriculum as they double up to full aircraft strength in the spring with all 24 Air Force F-35As expected to be on base. Jost will lead the group’s transition to the Block 2A aircraft, which carry upgraded computer software, in the first quarter of calendar year 2014 in order to accommodate more aircraft capabilities.

 

“We will increase the current syllabus from 6 student sorties to 8 and even 9 depending on when we will be cleared by the test community to fly at night,” Jost said.

 

Aside from flight operations, this also entails transitioning the ground school instruction such as flying more advanced scenarios in the full mission simulator.

 

“The primary capability of Block 2A is use of the plane’s multifunction advanced data link,” he said. 

 

Currently, voice transmission is the primary means of communication.

 

While Air Force planners is busy seeding Luke AFB with an initial F-35 team, the Marines have been doing the same for Marine Corps Air Station Yuma, Ariz., just a short flight away.

 

Having trained up the initial cadre of U.S. and United Kingdom pilots and maintainers at VMFAT-501, Marines at Eglin AFB continue to train instructor pilots with a portion of the classes’ students being operational test pilots. These pilots are standing up MCAS Yuma’s operations at Marine Fighter Attack Squadron-121, Levine said.

 

In the near future, Eglin AFB’s VMFAT-501 is preparing to conduct its first local short take-off and vertical landing of the F-35B, an accomplishment realized at MCAS Yuma in March that the VMFAT-501 helped make possible. Meanwhile, the Navy's Strike Fighter Squadron 101 at Eglin AFB, has conducted its first maintenance check flight yesterday, is preparing for its first student flight this week.

 

In the upcoming years, when operating at full capacity, the Eglin AFB fleet will grow to 59 aircraft with about 100 pilots and 2,100 maintainers graduating yearly.

The F-35 joint strike fighter program is a joint, multi-national program. In addition to U.S. armed forces, the F-35 increases operational flexibility and interoperability with the eight other international partners participating in the development of the aircraft. They are the United Kingdom, Italy, the Netherlands, Turkey, Canada, Australia, Denmark, and Norway.

With so much history in the making, the F-35A, B and C fighter units at Eglin AFB are making strides for airpower for years to come, officials said. 

“The versatile and high-tech aircraft will carry the U.S. Air Force, Marine Corps and Navy into the next 50 years of air dominance, and the men and women here can reflect back knowing they were among the pioneers in its initial phases,” Canterbury said.

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Navy Lt. Cmdr. Christopher Tabert returns from the first local flight of the carrier variant of the F-35C Lightning II, Joint Strike Fighter, Aug. 14, 2013, at Eglin Air Force Base's 33rd Fighter Wing. The unit, co-located at the wing, serves as the F-35C Fleet Replacement Squadron, training F-35C aircrew and maintenance personnel alongside Air Force, Marine and coalition partners in the joint strike fighter program. Tabert is an F-35 instructor pilot with the U.S. Navy Strike Fighter Squadron VFA-101.

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Staff Sgt. Michael A. Conran performs an in-flight refueling receptacle inspection for the F-35A Lightning II, Aug. 14, 2013, on Eglin Air Force Base, Fla. Fuel was transferred in flight from a tanker aircraft to the F-35 through the receptacle. Due to the precision needed to properly conduct the mission, post flight maintainers verify the boom did not do any damage thus readying the plane for another sortie. Conran, a crew chief with the 33rd Fighter Wing, recently maintained C-130 Hercules before transitioning to the joint strike fighter.

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Quelle: USAF


2867 Views

Freitag, 16. August 2013 - 12:00 Uhr

Astronomie - New 'Nova' Star Explosion am nächtlichen Himmel: So zu sehen!

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New star explosion Nova Delphini 2013 is seen in the Delphinus constellation (the Dolphin). This photo is by astrophysicist Gianluca Masi of the Virtual Telescope project. The nova was discovered by Japanese astronomer Koichi Itagaki of Yamagata, Japan. Image released August 14, 2013.
Credit: G. Masi, P. Schmeer and F.

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A new star explosion, called a nova, has flared up in the night sky, and it is fairly easy to spot with binoculars — and potentially even the naked eye — by stargazers with clear weather and dark skies. You can even see the new nova online tonight in a skywatching webcast.

Called Nova Dephinus 2013, the new nova (Latin for "new star") was discovered Wednesday (Aug. 14) by amateur astronomer Koichi Itagaki of Yamagata, Japan, at 2 p.m. EDT (1800 GMT) in the constellation Delphinus, the Dolphin. Itagaki used a CCD camera attached to a 7-inch reflecting telescope. A nova is a powerful eruption from star, but is not as strong as a supernova, which is a catastrophic explosion that signals the death of a star.

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The location of the star explosion Nova Delphini 2013 is seen in the Delphinus constellation (the Dolphin). This photo is by astrophysicist Gianluca Masi of the Virtual Telescope project. The nova was discovered by Japanese astronomer Koichi Itagaki of Yamagata, Japan. Image released August 14, 2013.

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Quelle: Spaceweather


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