Antares (Taurus II)

[Salo]

А вот и подтверждение названия Antares-230:
http://www.nasa.gov/sites/default/files/files/6-Norman-Launch-Services-Overview-Norman-Bedell-NAC-July-27-2015-Launch-Services.pdf
 

[Александр Ч.]

Peter B. de Selding ‏@pbdes  4 мин.4 минуты назад
Orbital CEO: Atlas launch of our Cygnus ISS cargo vehicle to occur in early December.
Peter B. de Selding ‏@pbdes  6 мин.6 минут назад

Orbital CEO: 2 missions added to ISS cargo resupply contract to occur between mid-2017 and early 2018. So contract now extends to Q2 2018.
Peter B. de Selding ‏@pbdes  19 мин.19 минут назад

Orbital: Space Systems booked $260M in orders in Q2 inc 2 new ISS cargo delivery missions for NASA under contract extension & 1 telecom sat.
Peter B. de Selding ‏@pbdes  24 мин.24 минуты назад

Orbital COO Larson: All remaining new hardware for Antares to arrive at Wallops spaceport by mid-August.
Peter B. de Selding ‏@pbdes  36 мин.36 минут назад

Orbital ATK's Thompson: Certification of new Antares rocket engines done, we're on track for early 2016 launch of re-engined vehicle.

Stephen Clark ‏@StephenClark1  5 мин5 минут назад
Orbital's Thompson: Completing integration of RD-181 engines in Antares airframe in few days. Hoping for on-pad engine test by end of year.
Stephen Clark ‏@StephenClark1  11 мин11 минут назад

Orbital ATK's Thompson: We have received orders from NASA for two more Cygnus resupply missions to ISS in 2017 and 2018.
Stephen Clark ‏@StephenClark1  38 мин38 минут назад

Orbital ATK's David Thompson: New Antares RD-181 engines achieved certification in May, first two flight engines arrived at Wallops in July.

[Александр Ч.]

New engines arrive at Antares rocket launch site

The first pair of new Russian main engines for Orbital ATK's modernized Antares rocket has arrived at the company's Virginia launch base as engineers prepare to return the commercial booster to flight after a catastrophic failure last year.
The two kerosene-fueled RD-181 engines arrived at Wallops Island, Virginia, in July, according to David Thompson, Orbital ATK's president and CEO.
Speaking Thursday in a quarterly conference call with investment analysts, Thompson said repairs to the Antares launch pad in Virginia should be complete by late September or early October.
In a separate announcement Thursday, Virginia Gov. Terry McAuliffe said the state of Virginia, NASA and Orbital ATK have each agreed to contribute $5 million to pay for the repairs to the Antares launch complex.
Launch pad 0A, which sits on NASA property but is owned by the Virginia Commercial Space Flight Authority, sustained about $15 million in damage when an Antares rocket suffered an engine failure moments after liftoff Oct. 28, 2014.
The booster crashed back on the launch complex, toppling two of the pad's lightning masts and leaving a crater near the rocket's launch mount.
The crash destroyed an Orbital ATK Cygnus supply ship carrying cargo to the International Space Station under contract to NASA.
Orbital ATK officials said the company would redesign the Antares rocket's first stage and stop using AJ26 main engines originally manufactured for the Soviet Union's ill-fated N1 moon rocket program. The engines, known as the NK-33 in Russia, were imported to the United States in the 1990s and modified by Aerojet Rocketdyne for flight on U.S. launchers.
NASA Administrator Charlie Bolden told the space agency's advisory council in late July that the investigation into last year's Antares failure was complete and submitted to NASA and the Federal Aviation Administration, which has regulatory responsibility for commercial rocket launches. The report should be released publicly soon, Bolden said.
Orbital ATK purchased at least 20 newly-manufactured RD-181 rocket engines to replace the AJ26. The engines burn the same liquid propellant mixture, minimizing changes to the already-built Antares first stages.
The engine change will give the Antares rocket additional lift capacity, providing a combined 820,000 pounds of thrust at full throttle, more than the twin-engine AJ26 engine configuration could generate.
The RD-181 engine is based on the RD-191 powerplant used on Russia's new Angara rocket. The single-nozzle engine sel ected to fly on the Antares rocket is also similar to the dual-nozzle RD-180 engine, which powers United Launch Alliance's Atlas 5 launcher.
The first shipment of two RD-181 engines arrived at Wallops in July fr om NPO Energomash of Khimki, Russia. All other rocket hardware needed for the next Antares launch will be delivered to Wallops by mid-August, according to Blake Larson, Orbital ATK's chief operating officer.
"At present, we are in the process of integrating the new engines into the Antares airframe," Thompson said. "That work is expected to be completed within just the next few days, and then we'll begin testing, which will continue through the fall. That also represents a significant risk reduction opportunity if things go well."
Antares rockets are assembled horizontally inside a hangar about a mile north of the launch pad at Wallops.
Thompson said the return-to-flight mission should be ready for takeoff in early 2016 on another resupply flight to the space station. Officials previously said the launch is targeted for March 2016.
But first engineers will transfer the rocket to the Antares launch pad as soon as December for ground tests and a hold-down firing to demonstrate the new RD-181 main engines.
In the meantime, Orbital ATK is preparing a Cygnus cargo craft for launch Dec. 3 aboard an Atlas 5 rocket. Orbital contracted with ULA for the Atlas 5 launch to keep resupply missions going while the Antares booster is grounded.
Email the author.
Follow Stephen Clark on Twitter: @StephenClark1.

Краткое содержание предыдущих серий:
По словам Девида Томпсона первая пара РД-181 прибыла на остров Уоллопс в июле. Все остальное оборудование для следующего пуска прибудет в середине августа. Процесс интеграции идет, будет завершен за несколько дней, и начнут тестирование до осени. Тестовые прожиги будут в декабре. Пуск планируется на начало, ориентировочно март, 2016г. Ремонт стартовой площадки будет завершен в сентябре-октябре. Ремонт стоил штату Вирджиния, NASA и Orbital ATK по 5млн.$ от каждого.

[Apollo13]

http://spacenews.com/orbital-atk-orders-second-atlas-5-leaves-door-open-for-more/

Orbital ATK Orders Second Atlas 5, Leaves Door Open for More

WASHINGTON — Orbital ATK has purchased a second Atlas 5 rocket to launch NASA cargo to the International Space Station and could buy a third, the company will announce Aug. 12.

Orbital ATK's latest Atlas 5 booking is for a mission slated to launch in early 2016, according to a press release slated to hit the wire Aug. 12. The company has already bought one Atlas 5 from Lockheed Martin Commercial Launch Services to launch its Cygnus cargo tug to ISS from Cape Canaveral Air Force Station in Florida in early December. The Atlas 5 is built and operated by United Launch Alliance of Denver, a Boeing-Lockheed Martin joint venture. Lockheed Martin sells the vehicle commercially.

Orbital ATK is counting on Atlas 5 to help fulfill orders NASA placed in 2008 under a $1.9 billion Commercial Resupply Services contract while the company redesigns its Antares rocket following a launch failure last October.  Antares exploded moments after liftoff from the Mid-Atlantic Regional Spaceport in Wallops Island, Virginia.

Orbital ATK has attributed the failure to the rocket's Soviet-heritage AJ-26 main-stage engine, which was imported and refurbished by Aerojet Rocketdyne of Sacramento, California.  The rebooted Antares will feature a new main-stage engine, the Russian-made RD-181 from NPO Energomash: the same company that makes Atlas 5's RD-180 core engine.

Both Atlas 5-launched Cygnus tugs will carry their maximum load of  3,500 kilograms of pressurized cargo, Frank Culbertson, president of Orbital ATK's Space Systems Group, said in the press release.

Besides the mission to be announced Aug. 12, Orbital ATK will conduct "at least three more CRS missions" in 2016, one of which could be launched by a third Atlas 5, the company said. The new Antares, which features two RD-181 engines, will be ready for launch from Virginia "in early 2016," the company wrote in its press release.

An Antares hot-fire at Wallop's Pad 0A, which is expected to be repaired and ready for operations by Sept. 30, could happen later this year, Orbital ATK said.

Meanwhile, the pressurized cargo module for the Cygnus launching on Atlas 5 in December arrived at NASA's Kennedy Space Center in Florida "earlier this week," according to the press release. The cargo module will next be integrated with Cygnus' service module, slated to arrive in early October.

NASA has Orbital ATK under contract for the equivalent of eight cargo flights; The company has completed two.

Орбитал АТК купила второй пуск Цигнуса на Атласе в начале 2016 и возможно купит третий. Оба пуска на Атласе будут с максимально возможным грузом 3500 кг. Всего в 2016 планируется как минимум 4 пуска Цигнуса. Один или два из них будут на Атласе.

[silentpom]

3500 КГ? не фунтов?

[Apollo13]

silentpom пишет:
3500 КГ? не фунтов?

Both Atlas 5-launched Cygnus tugs will carry their maximum load of 3,500 kilograms of pressurized cargo, Frank Culbertson, president of Orbital ATK's Space Systems Group, said in the press release.

Атлас не Антарес, а Цигнус не Дракон...

[Salo]

silentpom пишет:
3500 КГ? не фунтов?

Что Вас собственно удивляет?

[silentpom]

он вроде изначально в улучшенной версии на 2200 шел. Немного удивлен масштабом прироста от смены двигателя. Кому нечего делать из соседней ветки могут прикинуть злополучную Мюпн

[Salo]

Orb-3 не довёз 2300 кг груза, а улучшенный рассчитан на 2700 кг.
Прирост не от смены двигателя, а от смены ракеты.

[triage]

кажется прирост и от самого корабля: Orb-3 Стандартный корабль, новая вторая ступень, планировали Orb-4 Расширенная версия корабля (Enhanced Cygnus)
извиняюсь... смотрю в книгу, вижу.... ранее Salo написал точно

[Александр Ч.]

А вот и сама компания подтянулась http://www.orbitalatk.com/news-room/release.asp?prid=63

Orbital ATK Updates Progress on International Space Station Cargo Delivery Program for NASA

-- Company in Advanced Preparations for Next Cygnus Mission Later This Year --

-- Antares Rocket on Track for Return to Flight fr om Wallops Island in Early 2016 --

Dulles, Virginia 12 August 2015 – Orbital ATK, Inc. (NYSE: OA), a global leader in aerospace and defense technologies, is making excellent progress in resuming its cargo delivery service to the International Space Station (ISS) for NASA under the Commercial Resupply Services (CRS) contract, the company stated today.  Orbital ATK is on track to launch its next CRS mission late this year and is moving forward with integration of a new first stage propulsion system into the Antares launch vehicle in preparation for multiple CRS missions in 2016. 

"We committed to NASA that we would resume CRS cargo delivery missions as soon as possible under a comprehensive 'go-forward' plan after the Antares launch failure last October," said David W. Thompson, President and Chief Executive Officer of Orbital ATK. "Since that time our team has been sharply focused on fulfilling that commitment. With a Cygnus mission slated for later this year and at least three additional missions to the Space Station planned in 2016, we are on track to meet our CRS cargo requirements for NASA."

Three main CRS program efforts are simultaneously underway, including preparing the enhanced Cygnus spacecraft for the next ISS cargo mission (OA-4) to launch aboard an Atlas V rocket this December; upgrading the Antares rocket by integrating and testing the new RD-181 main engines with the modified first stage core structure; and working with the Mid-Atlantic Regional Spaceport (MARS) to complete repairs to the Pad 0A launch complex at Wallops Island to support the resumption of CRS missions from Wallops Island in early 2016.

Preparations for the OA-4 Mission

Orbital ATK will launch its next Cygnus spacecraft to the ISS aboard an Atlas V rocket supplied by United Launch Alliance (ULA) from Cape Canaveral, Florida. The OA-4 CRS mission is scheduled for launch in early December 2015. Like most Orbital ATK spacecraft, Cygnus is designed to be compatible with multiple launch vehicles. This capability, combined with ULA's flexibility in making available a launch slot this year, is enabling Orbital ATK to carry out the mission on a shortened schedule to be responsive to NASA's ISS logistics requirements. 

"For the OA-4 mission, launching aboard the more powerful Atlas V allows us to better support NASA's ISS cargo needs with a full load of about 3,500 kg of pressurized cargo, consisting of essential supplies, equipment and science experiments," said Frank Culbertson, President of Orbital ATK's Space Systems Group. The company also recently contracted with ULA for a second Atlas V rocket that will be used to launch an additional CRS mission in 2016 in order to provide NASA with the maximum cargo load Cygnus can carry.  

"In 2016, we will carry out at least three more CRS missions:  two (or possibly three) will be launched by Antares rockets, the first of which is on a path to be ready to launch early in the year, and one more will be launched aboard Atlas V to support NASA's need for additional cargo," Culbertson added. "We have not finalized the exact sequence of these missions yet, but the plan capitalizes on the flexibility of Cygnus to launch on either vehicle and provides better schedule assurance for our customer." 

The Cygnus spacecraft to be used for upcoming CRS missions features an extended pressurized cargo module (PCM) that allows it to deliver larger volumes of cargo to the station than in previous missions.  The spacecraft will also use the latest in lightweight space-qualified power system technology with the addition of the company's Ultraflex solar arrays.

The PCM for the OA-4 mission arrived at Kennedy Space Center (KSC) earlier this week wh ere it will be integrated with the Cygnus spacecraft's service module, which will arrive in early October. The service module, which houses the spacecraft's avionics, electrical, propulsion and communications systems, is currently completing final testing at the company's Dulles, Virginia satellite manufacturing facility. Final assembly, cargo loading and fueling of the Cygnus spacecraft will take place at KSC prior to its integration with the Atlas V rocket for an early December launch.  

Antares Return-to-Flight Progress  

Orbital ATK's Antares program remains on schedule to commence flight operations from NASA's Wallops Flight Facility in early 2016. Following the completion of certification and acceptance testing of the RD-181, the first dual-engine ship-set arrived at the Antares integration facilities at Wallops Island in mid-July. 

"The RD-181 engine provides extra thrust and higher specific impulse, significantly increasing the payload capacity of the Antares rocket.  This state-of-the-art propulsion system is a direct adaptation of the RD-191 engine, which completed an extensive qualification and certification program in 2013, accumulating more than 37,000 seconds of total run time," said Mr. Scott Lehr, President of Orbital ATK's Flight Systems Group.  

Antares program engineers and technicians recently integrated the two RD-181 engines with a newly designed and built thrust frame adapter and modified first stage airframe.  Later this month, new propellant feed lines and first stage avionics systems will be delivered to Wallops to support full vehicle integration.  Orbital ATK plans to conduct a "hot fire" test on the launch pad late this year or in early 2016 to verify the vehicle's operational performance and compatibility of the MARS launch complex.

"With the delivery of the first set of flight engines now accomplished, and the second ship-set expected to arrive in the fall, Antares remains solidly on track to resume flights early in 2016.  In fact, within the next couple of weeks all the hardware for the next Antares vehicle will be at our Wallops final assembly facility, with equipment for several additional rockets following a few months later," added Lehr.

Status of MARS Launch Pad Repairs  

Repairs of the MARS Pad 0A launch facility at Wallops Island are currently underway and are scheduled to be completed at the end of September. Working with MARS, Orbital ATK has installed an upgraded hydraulic system used to erect Antares vertically on the pad, which recently completed testing and certification. Other launch pad systems are on track to comfortably support the on-pad Antares "hot fire" test late this year or in early 2016.

The Orbital ATK CRS Team

Employees from Orbital ATK locations across the United States support the CRS program, including teams from Dulles, Virginia; Chandler, Arizona; Goleta and Commerce, California; Magna, Utah; and Wallops Island, Virginia.  

"Our team and our partners are devoting maximum efforts to ensuring the success of NASA's ISS commercial cargo program," said Thompson. "We are committed to meeting all CRS mission requirements, and we are prepared to continue to supply the Space Station for many years to come if we are selected for additional missions by NASA."

About Orbital ATK

Orbital ATK is a global leader in aerospace and defense technologies. The company designs, builds and delivers space, defense and aviation systems for customers around the world, both as a prime contractor and merchant supplier. Its main products include launch vehicles and related propulsion systems; missile products, subsystems and defense electronics; precision weapons, armament systems and ammunition; satellites and associated space components and services; and advanced aerospace structures. Headquartered in Dulles, Virginia, Orbital ATK employs more than 12,000 people in 18 states across the U.S. and in several international locations. For more information, visit www.orbitalatk.com.

"Safe Harbor" Statement Under the Private Securities Litigation Reform Act of 1995
Certain statements in this press release may be "forward-looking statements" as defined by the Private Securities Litigation Reform Act of 1995. Forward-looking statements often include the words "forecast," "expect," "believe," "will," "intend," "plan," and words of similar substance. Such forward-looking statements are subject to risks and uncertainties that could cause actual results or performance to differ, including the following: reductions or changes in U.S. Government or NASA spending, including impacts of sequestration under the Budget Control Act of 2011; the potential termination of U.S. Government contracts; the impact of the Antares launch failure; supply, availability, and costs of raw materials and components, including commodity price fluctuations; the timely completion of repairs at the MARS launch pad; and the performance of subcontractors and other third parties. Additional information concerning these and other factors can be found in Orbital ATK's filings with the Securities and Exchange Commission. Orbital ATK undertakes no obligation to update any forward-looking statements.

# # #

Media Contacts:                    
Vicki Cox (703) 406-5663      
Cygnus Public Relations      
Orbital ATK                        
vicki.cox@orbitalatk.com                 

Trina Helquist (480) 814-6504                 
Antares Public Relations
Orbital ATK                         
trina.helquist@orbitalatk.com

[silentpom]

Salo пишет:
Orb-3 не довёз 2300 кг груза, а улучшенный рассчитан на 2700 кг.
Прирост не от смены двигателя, а от смены ракеты.

извините, ступил

[Александр Ч.]

Еще, и с картинками http://www.orbitalatk.com/news-room/feature-stories/CRSUpdate/default.aspx

Orbital ATK Team on Track for Fall 2015 Cygnus Mission and Antares Return to Flight in 2016

 
Orbital ATK employees from across the United States have worked diligently over the last several months to complete significant milestones on the company's Commercial Resupply Services (CRS) contract for NASA. Their dedication and hard work have kept Orbital ATK on track to launch its next CRS mission late this year. The team is also moving forward with integration of a new first stage propulsion system into the Antares launch vehicle in preparation for multiple CRS missions in 2016.
"We committed to NASA that we would resume CRS cargo delivery missions as soon as possible under a comprehensive 'go-forward' plan after the Antares launch failure last October," said David W. Thompson, President and Chief Executive Officer of Orbital ATK. "Since that time our team has been sharply focused on fulfilling that commitment. With a Cygnus mission slated for later this year and at least three missions to the Space Station planned in 2016, we are on track to meet our CRS cargo requirements for NASA."
Three main CRS program efforts are simultaneously underway, including preparing the enhanced Cygnus spacecraft for the next ISS cargo mission (OA-4) to launch aboard an Atlas V rocket this December; upgrading the Antares rocket by integrating and testing the new RD-181 main engines with the modified first stage core structure; and working with the Mid-Atlantic Regional Spaceport (MARS) to complete repairs to the Pad 0A launch complex at Wallops Island to support the resumption of CRS missions from Wallops Island in early 2016.
Preparations for the OA-4 Mission
Orbital ATK will launch its next Cygnus spacecraft to the ISS aboard an Atlas V rocket supplied by United Launch Alliance (ULA) from Cape Canaveral, Florida in early December. This mission will fly the extended Cygnus Pressurized Cargo Module (PCM) which will carry approximately 3,500 kg or 7,700 pounds of supplies to station.
"During our first three missions, we delivered 3,629 kilograms to the space station, about the weight of two F-150 pickup trucks," said Frank DeMauro, Vice President of Human Space Systems for the Civil and Defense Division of Orbital ATK's Space Systems Group. "Just as important, we've taken away more cargo than we've delivered, which is a very valuable service to NASA. Starting on our next mission, the extended PCM will greatly increase the amount of cargo we can carry."
The company also recently contracted with ULA for a second Atlas V rocket that will be used to launch an additional CRS mission in 2016 in order to provide NASA with the maximum cargo load Cygnus can carry.  
"In 2016, we will carry out at least three more CRS missions: two or three will be launched by Antares rockets, the first of which is on a path to be ready to launch early in the year, and one more launch aboard Atlas V to support NASA's need for additional cargo," said Frank Culbertson, President of Orbital ATK's Space Systems Group.  "We have not finalized the exact sequence of these missions yet, but the plan capitalizes on the flexibility of Cygnus to launch on either vehicle and provides better schedule assurance for our customer."
In addition to the larger PCM for the upcoming CRS missions, the spacecraft will utilize the latest in lightweight and space-qualified power system technology with the addition of the company's Ultraflex solar arrays.
"These planned upgrades to our Cygnus spacecraft enable us to carry larger quantities of cargo that support the important work being performed aboard the ISS," said Frank Culbertson, President of Orbital ATK's Space Systems Group. "Our ability to achieve these milestones on an accelerated timeline demonstrates our flexibility and responsiveness to customer needs."
The pressurized cargo module for the OA-4 mission arrived at Kennedy Space Center (KSC) in early August, with the service module arriving in October. Integration with the launch vehicle will begin in November at KSC prior to its integration with the Atlas V rocket for an early December launch.
Antares Return-to-Flight Progress
Orbital ATK's Antares program remains on schedule to commence flight operations from NASA's Wallops Flight Facility in early 2016. Following the completion of certification and acceptance testing of the RD-181, the first dual-engine ship-set arrived at the Antares integration facilities at Wallops Island in mid-July.
"The RD-181 engine provides extra thrust and higher specific impulse, significantly increasing the payload capacity of the Antares rocket.  This state-of-the-art propulsion system is a direct adaptation of the RD-191 engine, which completed an extensive qualification and certification program in 2013, accumulating more than 37,000 seconds of total run time," said Mr. Scott Lehr, President of Orbital ATK's Flight Systems Group. 
Antares program engineers and technicians recently integrated the two RD-181 engines with a newly designed and built thrust frame adapter and modified first stage airframe.  Later this month, new propellant feed lines and first stage avionics systems will be delivered to Wallops to support full vehicle integration. Orbital ATK plans to conduct a "hot fire" test on the launch pad late this year or in early 2016 to verify the vehicle's operational performance and compatibility of the MARS launch complex.
"The team continues to make great progress in the Antares return to flight efforts,"said Mike Pinkston, Vice President and General Manager of Orbital ATK's Antares Program. "Significant progress has been made in the manufacture and test of the modified hardware components, avionics and software needed to support the new engines.  The first set of flight engines have been delivered, and the second ship set is expected in the fall. The integration of our first launch vehicle is well underway and we are solidly on track to resume flying Antares in 2016."

Status of MARS Launch Pad Repairs
Repairs of the MARS Pad 0A launch facility at Wallops Island are currently underway and are scheduled to be completed within the next eight weeks. Working with MARS, Orbital ATK has installed an upgraded hydraulic system used to erect Antares vertically on the pad, which recently completed testing and certification. Other launch pad systems are on track to comfortably support the on-pad Antares "hot fire" test late this year or in early 2016.

Multiple Cygnus Pressurized Cargo Modules at Thales Alenia Space's production facility in Turin, Italy. They will be used to transport supplies to the International Space Station on future Orbital ATK CRS missions. Photo credit: Thales Alenia Space.

The OA-4 Service Module (SM) undergoing deployment testing of one of its two UltraflexTM solar arrays at orbital ATK's Dulles, Virginia satellite manufacturing facility. Orbital ATK's Space Components Division supplies the Ultraflex arrays.

The Cygnus Pressurized Cargo Module for the OA-4 mission arrived at the Kennedy Space Centerfor processing in preparation for the upcoming CRS space station resupply mission to be launched from Florida in early December. Photo credit: Orbital ATK.

Two RD-181 integrated with the Antares first stage air frame at the Wallops Island, Virginia Horizontal Integration Facility (HIF). A "hot fire" test on Pad 0A is scheduled for late 2015 or early 2016. Photo credit: NASA/ Terry Zaperach

Перевод: Два РД-181 интегрированных с хвостовой частью первой ступени Антареса на острове Уоллопс, Вирджинское предприятие горизонтальной интеграции. Огневое испытание на Pad 0A запланировано на конец 2015 или в начале 2016г. Фото: NASA/Терри Запэрач

The MARS Pad 0A repairs are on track with completion scheduled for this fall to support an upcoming Antares hot fire test and return to flight operations in 2016. Photo credit: NASA/ Brea Reeves.

[Seerndv]

Будем ждать фееричного успеха ...

[TDMS]

Salo пишет:
А вот и подтверждение названия Antares-230

Да, и еще будет 330. http://www.nasaspaceflight.com/2015/08/orb-4-cygnus-set-atlas-v-ride-ahead-antares-return/
Только я не понял, почему они так держатся за свой кастор. Купили бы уже УРМ-2 Мысль пришла. А 2x181 вытянут вторую ступень Зенита?

[Александр Ч.]

TDMS пишет:
Мысль пришла. А 2x181 вытянут вторую ступень Зенита?

Зачем? Блок-И более чем достаточен

[silentpom]

TDMS пишет: 
Только я не понял, почему они так держатся за свой кастор. Купили бы уже УРМ-2    Мысль пришла. А 2x181 вытянут вторую ступень Зенита?

так это единственное, что на ракете их

[Salo]

Переговоры по РД0124 велись.

[Apollo13]

После слияния с атк легче поверить в первую твердотопливную чем во вторую жидкостную ступень. Собственно стратоланч если будет реализован будет примерно равен антаресу по пн.

[silentpom]

я на салфетке прикинул - кастор не так уж и плох. Если взять Блок И c РД0110, то результаты у них очень близки. 6000 тонн кастор разгонит до 4143 м/с, а И до 4105. Чем больше вес нагрузки, тем ближе И подбирается к кастору.

// табуретками не кидать, считал в экселе