Cygnus Orb-2 (CRS2) - Antares-120 - MARS LP-0A (о.Уоллопс) - 13.07.2014 16:52 UTC

Автор Salo, 10.08.2013 13:42:13

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DAP

NSF пишет, что пока непонятно, как авария при прожиге двигателя для другой ракеты (не сообщили пока, для какой) повлияет на сроки пуска Orb-2.  Вроде как двигателя для этого старта все испытания успешно прошли еще в августе, но Орбитал пока не сообщил, будет ли задержка до окончательного выявления причин аварии при вчерашнем испытании.

Александр Ч.

ЦитироватьA Russian-built rocket engine assigned to launch an Orbital Sciences Corp. commercial resupply flight to the International Space Station in early 2015 was damaged Thursday during a test mishap at NASA's Stennis Space Center in Mississippi.


File photo of an AJ26 engine lifted into the E-1 test stand at NASA's Stennis Space Center in southern Mississippi. Credit: NASA
 
"A test anomaly occurred earlier today at Stennis during an acceptance test of an AJ26 engine slated to fly in 2015," said Orbital Sciences spokesperson Barry Beneski. "The cause of the failure is unknown at this time."

The Antares launch vehicle is powered by two AJ26-62 first stage main engines at the start of Orbital's commercial cargo missions to the space station. The Dulles, Va.-based company has a $1.9 billion contract for eight resupply flights through 2016 using Antares boosters and Cygnus logistics spaceships.

Orbital has completed the first supply mission under the contract, and the second flight is scheduled for takeoff June 10 from NASA's Wallops Flight Facility in Virginia.

"We don't know yet if this will affect the upcoming Antares launch schedule," Beneski wrote in an email.

SpaceX holds a similar cargo contract with NASA to transport supplies to and from the space station using the company's Falcon 9 rocket and Dragon capsule.

Aerojet Rocketdyne provides the AJ26 engines for Orbital's Antares launch vehicle. A spokesperson for the propulsion firm said there no injuries from Thursday's engine mishap, and the company is leading an investigation to determine the cause of the failure.


Photo of an Antares launch on Jan. 9, 2014. Credit: Orbital Sciences Corp.
 
Aerojet purchased 43 NK-33 engines from Russia's Kuznetsov Design Bureau in the 1990s to integrate on U.S. rockets. The first American launch contractor to commit to using the engines was Orbital Sciences, which bought 20 engines for 10 flights, consisting of two test launches and the eight cargo deliveries to the space station.

Aerojet Rocketdyne converted the 20 NK-33 engines into the AJ26 configuration by adding U.S. electronics, qualifying the engines for U.S. propellants, putting in equipment to permit the engines to gimbal for steering, and adding electromechanical valve actuators, according to officials familiar with the engine's modernization.

The AJ26 engines consume liquid oxygen and rocket-grade kerosene propellants. Each engine generates more than 350,000 pounds of thrust at sea level.

Officials said the AJ26 engine that failed Thursday suffered the anomaly about 30 seconds into a planned 54-second test. The engine test terminated prematurely, resulting in extensive damage to the engine.

A team of NASA, Aerojet Rocketdyne, Orbital Sciences and Lockheed Martin engineers put each AJ26 engine through acceptance testing on the E-1 test stand at the Stennis Space Center in southern Mississippi before delivering the engines to the Antares launch site on Virginia's Eastern Shore.


File photo of an NK-33 engine test. Credit: Aerojet Rocketdyne
 
Engines for the next two Antares launches, currently scheduled for June 10 and early October, have finished acceptance testing and are ready for flight. But officials said Thursday it was too soon to tell whether the launches would be delayed in the aftermath of the engine mishap at Stennis.

The first stage structures for the next three flights have also been delivered to the United States from Yuzhmash in Dnipropetrovsk, Ukraine, according to Frank Culbertson, executive vice president and general manager of Orbital's advanced programs group.

In an interview Wednesday, Culbertson said two more Ukrainian stages were on schedule to arrive in the United States later this year.

Follow Stephen Clark on Twitter: @StephenClark1.
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RustemNur

ЦитироватьАмериканская частная ракетная корпорация Orbital Sciences отменила запланированный на 10 июня запуск ракеты Antares с грузовым кораблем Cygnus из-за отказа российского двигателя первой ступени. На прошлой неделе в ходе испытаний произошел отказ российского двигателя НК-33, который ныне под маркой AJ26 компания использует в своей ракете.
Компания сообщает, что старт произойдет не ранее 17 июня. «Новое расписание необходимо, чтобы позволить инженерным командам главной ступени определить причины отказа двигателя, который произошел на прошлой неделе в Космическом центре имени Стенниса», — говорится в сообщении.
Orbital Sciences имеет контракт с NASA на сумму $1.9 млрд на запуск восьми грузовых кораблей к МКС. С 2010 года компания проводит модернизацию советских «лунных» двигателей НК-33, чтобы снабдить их современной электрикой и подогнать их под американские стандарты и требования.
http://www.gazeta.ru/science/news/2014/05/28/n_6189869.shtml
На форуме прошу обращаться ко мне на "ты". Спасибо.

Rifkat

Дрион покидает Землю

Salo

Цитировать
Цитироватьanik пишет:
http://www.nasa.gov/content/crew-ramps-up-for-station-vehicle-traffic-and-june-19-spacewalk/

"The Cygnus commercial cargo craft on its second Commercial Resupply Services mission for Orbital Sciences is targeted for a June 20 launch to the International Space Station"
Olaf пишет:

21 июня  по ЛМВ  и UTC
"Были когда-то и мы рысаками!!!"

Salo

#26
;)
"Были когда-то и мы рысаками!!!"

Space Alien

Orbital has updated its Antares launch schedule for the Orb-2 mission to a date no earlier than (NET) July 1, 2014. Orb-2 is the second of eight cargo resupply missions to the International Space Station (ISS) under the company's Commercial Resupply Services (CRS) contract with NASA. The new launch schedule reflects the timing of the investigation into the cause of an AJ26 engine failure that occurred in late May at NASA's Stennis Space Center during customary acceptance testing. All other elements of the Orb-2 mission are prepared to move forward, including the Cygnus spacecraft, which is fueled and, except for late-load cargo, is packed with its manifest of ISS cargo.

The engine that failed was designated for use in a 2015 CRS mission and was undergoing hot fire testing that all Antares AJ26 engines are subject to in order to ensure nominal performance and acceptance for use in Antares missions. The investigation into the failure is being led by the Antares main stage propulsion supplier, Aerojet Rocketdyne, with Orbital and NASA engineers also supporting the effort. Once the investigation team reaches the point in their process that they can clear Antares to launch the Orb-2 mission, a targeted launch date will be established. For now, NET July 1 is simply a planning date. Please check back to this page for further updates.

http://www.orbital.com/NewsInfo/MissionUpdates/Orb-2/

Space Alien

NASA ‏@NASA
@OrbitalSciences updated its launch sked for the next resupply mission to #ISS for NET July 10 at 2:02p Eastern  

https://twitter.com/NASA/status/481106387582607360

Александр Ч.

Что-то забыли все тему...
ISS Commercial Resupply Services Mission (Orb-2)
ЦитироватьLaunch Date:    July 11, 2014
Launch Site:    MARS Pad 0A at NASA Wallops Flight Facility, Wallops Island, VA
Cygnus ISS Arrival:    July 15, 2014

Mission Update – July 3, 2014

Orbital has established July 11, 2014 as the targeted date for the launch of the Orb-2 mission to the International Space Station (ISS), the second operational cargo resupply mission under the company's Commercial Resupply Services (CRS) contract with NASA. The targeted launch time from the Mid-Atlantic Regional Spaceport at NASA's Wallops Flight Facility on July 11 will be 1:40 p.m. (EDT).

The engineering team that is investigating the failure of an AJ26 engine during an acceptance test at Stennis Space Center recommended that certain inspections be performed on the two AJ26 engines that are currently integrated on the Antares rocket. These inspections were recently completed and program officials have cleared the rocket for flight.

Leading up to the launch, the Cygnus cargo logistics spacecraft will be mated to the rocket today. After the loading of the final time sensitive cargo and installation of the rocket's payload fairing, Antares will be rolled out to the launch pad on July 9. A launch on July 11 will result in a rendezvous and berthing with the ISS on July 15. The Cygnus spacecraft will deliver 1,657 kg of cargo to the ISS and will be loaded with approximately 1,346 kg of material for disposal upon reentry into Earth's atmosphere.

An image gallery for the launch campaign is available here
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ВВК

ЦитироватьАлександр Ч. пишет:
....Тhe Cygnus spacecraft will deliver 1,657 kg of.....
А сколько всего у него максимальная грузоподъемность?

Александр Ч.

ЦитироватьВВК пишет:
ЦитироватьАлександр Ч. пишет:
....Тhe Cygnus spacecraft will deliver 1,657 kg of.....
А сколько всего у него максимальная грузоподъемность?
2/2,7т http://www.orbital.com/AdvancedSystems/Publications/Cygnus_factsheet.pdf
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ВВК

ЦитироватьАлександр Ч. пишет:
ЦитироватьВВК пишет:
ЦитироватьАлександр Ч. пишет:
....Тhe Cygnus spacecraft will deliver 1,657 kg of.....
А сколько всего у него максимальная грузоподъемность?
2/2,7т http://www.orbital.com/AdvancedSystems/Publications/Cygnus_factsheet.pdf
Спасибо за ссылку, интересно ,а что так не догружают объемное что-то везут?

Бампер

А логотипа миссии Orb-2 ни у кого нет?

anik

#34
ЦитироватьБампер пишет:
А логотипа миссии Orb-2 ни у кого нет?
http://forum.nasaspaceflight.com/index.php?topic=33924.msg1222062#msg1222062

Корабль "Дженис Восс"

SFN

#35
"SS Janice Voss"
Грузовики начали персонально именовать?

Seerndv

Симпатичный... банку из под пепси-колы напоминает
Свободу слова Старому !!!
Но намордник не снимать и поводок укоротить!
Все могло быть еще  хуже (С)

Бампер

Спасибо за логотип, пригодится в работе. С чего это их дизайнеры отошли от круглой эмблемы, до того применявшейся?

anik

ЦитироватьSFN пишет:
Грузовики начали персонально именовать?
С самого первого. Дэвид Лоу, Гордон Фуллертон...

Liss

Закрываемые районы:

ЦитироватьNAVAREA IV 515/14
 WESTERN NORTH ATLANTIC.
 ROCKETS.
 1. HAZARDOUS OPERATIONS 111730Z TO 111900Z JUL,
 ALTERNATE 121700Z TO 121830Z, 131645Z TO 131815Z,
 141615Z TO 141745Z, 151600Z TO 151730Z,
 161530Z TO 161700Z AND 171500Z TO 171630Z JUL
 IN AREAS BOUND BY:
 A. 37-50-57N 075-30-41W, 37-59-06N 075-13-20W,
 37-01-49N 074-07-31W, 36-55-06N 074-14-28W,
 37-22-58N 075-38-40W, 37-36-17N 075-36-33W.
 B. 25-56-33N 062-31-08W, 24-14-49N 060-51-21W,
 25-16-13N 059-25-38W, 27-01-48N 061-04-40W.
 2. CANCEL THIS MSG 171730Z JUL 14.//
 Authority: WALLOPS 031434Z JUL 14.
 Date: 
 Cancel: 17173000 Jul 14
Сказанное выше выражает личную точку зрения автора, основанную на открытых источниках информации