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Il futuro del programma spaziale USA

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RD-180 .... le preoccupazioni (e le aspettative) dell'Air Force ....

 

Engine Vulnerabilities ....

 

A study of potential vulnerabilities in the supply chain of the Russian-made RD-180 engine, which powers United Launch Alliance rockets, is slated for completion in May, said Air Force Space Command boss Gen. William Shelton.

Speaking to members of the House Armed Services Committee’s strategic forces panel April 3, Shelton said he was open to indigenous production of an alternative engine, provided funds are made available.

“It certainly has its advantages,” Shelton said.

One, the US would no longer be reliant on a foreign supplier.

Two, there would be an increase in the US rocket engine industrial base.

“Both of those would make a great contribution to the overall launch program,” Shelton said.

Betty Sapp, director of the National Reconnaissance Office, said as a customer for ULA launches, the NRO has been aware for "quite some time" that the RD-180 is “a vulnerability.”

She said NRO would feel better if an alternative was produced in the US.

(Shelton prepared testimony.)

 

4/10/2014

 

Fonte .... il "Daily Report" dell'AFA .... 2mpl6b5.jpg

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Qualcosa si muove: Orion ed Sls.

Credo che il prossimo presidente possa decidere davvero di puntare fra 25-30 anni al pianeta rosso.

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Se gli Usa finanzieranno davvero il progetto Orion ed Sls, allora prima di morire vedrò gli umani su di un altro pianeta.

Spero in un cambiamento politico forte al posto di Obama.

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ULA ..... Ullallà !!!!!

 

2nvcy8o.jpg

 

Il colpo a sorpresa di United Launch Alliance ..... :woot:

 

"ULA’s Vulcan Rocket Embraces Reusability, New Upper Stage" ..... http://aviationweek.com/space/ula-s-vulcan-rocket-embraces-reusability-new-upper-stage

 

"ULA Unveils Vulcan Launch Vehicle" ..... http://www.defensenews.com/story/defense/air-space/space/2015/04/13/ula-unveils-reusable-vulcan-launch-vehicle/25737327/

 

"Artwork: ULA Vulcan rocket revealed" ..... http://spaceflightnow.com/2015/04/13/photos-ula-vulcan-rocket-revealed/

 

Video .....

 

..... e già sorgono i primi problemi ..... :incazz:

 

"U.S. satellite launcher gets first Vulcan rocket request: change the name" ..... http://www.reuters.com/article/2015/04/14/us-space-ula-rocket-name-idUSKBN0N505V20150414

 

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Aspettative e (potevano mancare?) ..... polemiche .....

 

United Launch Alliance CEO Tory Bruno says Aerojet Rocketdyne’s claim of delivering an AR-1 rocket engine capable of operating on the Atlas V or Vulcan vehicles by 2018 is “ridiculous.”

“It is not going to happen. I would love for them to prove me wrong, but I just don’t think that is realistic,” Bruno tells Aviation Week in an interview.

 

Fonte ..... " ULA CEO Calls 2018 Availability Date For AR-1 Engine ‘Ridiculous’ " ..... http://aviationweek.com/defense/ula-ceo-calls-2018-availability-date-ar-1-engine-ridiculous

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Ci vuole ben altro .....

..... il blocco degli acquisti di motori dalla Russia pone grossi problemi ..... e l' USAF esprime i propri dubbi sui tempi necessari per poter disporre di sostituti di produzione nazionale .....

 

Assured Space Launch Requires More than a New Engine .....

Otto Kreisher (4/29/2015)
The struggle to maintain assured space launch capability without the Russian-built RD-180 engine, which powers United Launch Alliance rockets, is more complicated than just developing an American-made engine, said Gen. John Hyten, commander of Air Force Space Command.
Although the request for proposals for a new engine should be issued next month, his command is not just looking for “engine solutions, but engines and rockets with a partnership with industry,” Hyten told defense reporters on Tuesday.
Legislation passed by Congress last year after Russia invaded Crimea not only ordered the Air Force to stop using the RD-180, it required “fair and open competition” to obtain a US-built engine by 2019, and to have at least two qualified providers for national security space launches, Hyten explained.
Developing and certifying a new US-made engine by 2019 “is challenging.”
But it would take two years more to integrate it into a rocket and certify it for launch, said Hyten.
I’m not going to put a billion dollar satellite on top of a rocket that I’ve never flown before.”
In addition, USAF would have to execute a contract with two launch providers that ensures the higher bidder gets some of the launches and that a provider could survive if a failure forced a prolonged disruption in launches, he said.

 

Fonte ..... il 'Daily Report' dell' AFA .....

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Ma il nostro Vega e/o Vega C potrebbe avere li (USA) un mercato, cioe come competitor dei Vettori Privati? Oppure ce il solito protezionismo ..... :hmm:

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Ma il nostro Vega e/o Vega C potrebbe avere li (USA) un mercato, cioe come competitor dei Vettori Privati? Oppure ce il solito protezionismo ..... :hmm:

 

Oso permettermi di avere seri dubbi sull'eventualità che gli Americani possano acquistare un vettore europeo ..... forse una volta ..... ma ora come ora ..... :thumbdown:

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La sostituzione dei motori russi RD-180 sta creando grossi problemi ai programmi spaziali dell'USAF .....

 

Pentagon and Air Force officials Friday warned lawmakers that a congressional push to limit the use of a Russian-made rocket engine, and the development of a U.S.-made alternative, is likely to extend beyond the 2019 deadline.

It might eventually push the United Launch Alliance out of national security space missions altogether.

 

Fonte ..... "Air Force: RD-180 replacement timeline tight, could limit competition" ..... http://www.defensenews.com/story/military/tech/2015/06/27/air-force-rd-180-rocket-replacement-timeline/29337551/

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E' esploso la SpaceX in volo. Avrebbe dovuto portare rifornimenti alla ISS.

 

Dalla NASA ..... "Something went wrong with the launch. SpaceX is evaluating the status of the mission" ..... https://blogs.nasa.gov/spacestation/2015/06/28/spacex-evaluating-status-of-mission/

 

A SpaceX Falcon 9 rocket suffered a failure about two minutes after liftoff June 28 on a mission to deliver cargo to the International Space Station.

The Falcon 9 lifted off on schedule at 10:21 a.m. EDT Sunday after a problem-free countdown, and in good weather conditions.

The launch appeared to be going well until a little more than two minutes after liftoff, when the first stage plume became irregular and, seconds later, the rocket appeared to disintegrate.

 

Fonte ..... "SpaceX Falcon 9 Fails During ISS Cargo Launch" ..... http://spacenews.com/spacex-falcon-9-fails-during-iss-cargo-launch/

 

L'esplosione al minuto 54:00 del fimato contenuto nell'articolo .....

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Sul fallimento del lancio del Falcon 9 è attualmente in corso un'inchiesta ..... sulla cui gestione alcuni politici esprimono dubbi ..... che li inducono a scrivere una lettera .....

 

"Congress calls SpaceX Falcon 9 launch certification into question" ..... http://www.denverpost.com/business/ci_28562669/congress-calls-spacex-falcon-9-launch-certification-into

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Si torna a parlare dei progetti di Bigelow ...

The moon — that cold, gray outpost that NASA last visited 45 years ago — is hot again.
The vice president says so. So do Elon Musk and Jeffrey P. Bezos.
And as the Trump administration sets its sights on the lunar surface, a growing number of companies say they are ready for the challenge.
The latest is Bigelow Aerospace, the Las Vegas-based maker of inflatable space habitats.
In an announcement Tuesday (*), the company that it is hoping to send one of its space stations to lunar orbit by 2022 in partnership with the United Launch Alliance, the joint venture of Lockheed Martin and Boeing.

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La NASA con un video su facebook presenta un nuovo lanciatore più piccolo pensato apposta per il lancio di microsatelliti.

Da parte mia ho un dubbio: tra il neozelandese electron ed il falcon 9, che ha la possibilità di lanciare più microsatelliti ad ogni lancio e di essere riutilizzabile, c'è veramente lo spazio e la necessità di progettare un altro lanciatore (con i soldi dei contribuenti) ? Non avrebbe più senso basarsi sugli altri due, comunque moderni ed economici?

 

 

 

Video: https://www.facebook.com/NASA/videos/10156244737361772/

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Si sta studiando la possibilità di impiegare il 'Grafene' nei propellenti solidi dei vettori spaziali ...

Quote

Graphene, a new material with applications in biomedical technology, electronics, composites, energy and sensors, may soon help send rockets to space.
A new propellant formulation method to use graphene foams – material used in electronics, optics and energy devices – to power spacecraft is being developed in Purdue University's Maurice J. Zucrow Laboratories, which is the largest academic propulsion lab in the world. 
The research is showing success at increasing burn rate of solid propellants that are used to fuel rockets.

 Fonte: phys.org ... New hybrid energy method could fuel the future of rockets, spacecraft for exploration ...

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