Cargo DreamChaser to be Flown 6 Times on ULA Vulcan Rocket

Sierra Nevada Corporation’s Cargo Dream Chaser has extended its agreement with United Launch Alliance (ULA) from two to six launches during its Commercial Resupply Services 2 (CRS2) missions to the International Space Station (ISS). All six missions will launch on ULA’s new rocket, Vulcan Centaur. The move was expected but requirement confirmation given Dream Chaser’s ability to launch on several launch vehicle options.

Dream Chaser will be flying at least six missions to the ISS in the 2020s, following NASA’s contract award to SNC – along with SpaceX and Orbital ATK for the CRS2 missions.

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NASA Approves Sierra Nevada's DreamChaser Manufacture of First Prototype Space Plane

Sierra Nevada Corporation (SNC) has won NASA approval to begin full-scale production of its Dream Chaser cargo spacecraft scheduled to make its first flight in about two years.

The company announced Dec. 18 that it completed a milestone in its Commercial Resupply Services (CRS) 2 contract called Integrated Review 4. With that milestone, the company is cleared to move ahead into assembly of the Dream Chaser vehicle that will deliver cargo to the station.

“NASA’s acknowledgement that SNC has completed this critical milestone and its approval of full production of the first Dream Chaser spacecraft is a major indication we are on the right path toward increasing vital science return for the industry,” John Curry, CRS-2 program director at the company, said in a statement announcing the milestone.

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Sierra Nevada gets Clearance for First DreamChaser Mission to ISS in Late 2020

NASA has given Sierra Nevada Corporation (SNC) formal approval for the company’s first cargo mission to the International Space Station in late 2020.

SNC announced Feb. 7 that it had received “authority to proceed” on that mission using the company’s Dream Chaser vehicle. The mission will launch on a United Launch Alliance Atlas 5 rocket in late 2020.

The mission is the first of six in the company’s Commercial Resupply Services (CRS) 2 contract it won in 2016 to transport cargo to and from the ISS. SNC received a CRS-2 contract along with current CRS providers Orbital ATK and SpaceX.

“While we won the contract a couple of years ago, the contract still needed to be validated by a task order,” said Mark Sirangelo, executive vice president of SNC’s Space Systems business area, in a Feb. 7 speech at the Federal Aviation Administration’s Commercial Space Transportation Conference here. That order, he said, is the “biggest step” to date on the program.

That flight will be a “full scale, fully operational mission,” he said, even though it will represent the first orbital flight of the Dream Chaser. Orbital ATK and SpaceX, who developed their Cygnus and Dragon spacecraft, respectively, under earlier NASA Space Act Agreements, flew demonstration missions before starting their operational CRS cargo flights.

Dream Chaser, which SNC had been developing for NASA’s commercial crew program, will be able to transport up to 5,500 kilograms of cargo to the station. The lifting body vehicle can return up to 2,000 kilograms of cargo from the station, making a runway landing at the Kennedy Space Center’s Shuttle Landing Facility or other airports to enable rapid access to experiments or other time-sensitive cargo after landing.

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UN Using a Sierra Nevada DreamChaser for First UN Space Mission?

The United Nations plans to purchase a dedicated mission on a Sierra Nevada Corporation (SNC) Dream Chaser spacecraft in 2021 to give developing nations an opportunity to fly experiments in space.

At a press conference during the International Astronautical Congress here Sept. 27, the United Nations Office of Outer Space Affairs (UNOOSA) said the agreement to fly the dedicated Dream Chaser mission is part of a broader effort by the office to increase access to space to emerging nations.

“Our project is the first-ever United Nations space mission,” said Simonetta Di Pippo, director of UNOOSA. “The mission has one very important goal: to allow United Nations member states to conduct research that cannot be done on Earth.”

The mission, she said, will be open to all nations, but with a particular emphasis on those nations that don’t have the capabilities to fly their own experiments in space. UNOOSA will soon start the process of soliciting payload proposals, with a goal of selecting payloads by early 2018 so that the winning countries have time to build them for a 2021 launch.

Neither SNC nor UNOOSA disclosed the cost of the mission. Mark Sirangelo, corporate vice president of SNC’s Space Systems division, said that the mission will be financed by several ways, with the countries selected to fly experiments paying at least some of the cost of the flight.

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Sierra Nevada Completes First Milestone for DreamChaser SpaceStation Resupply

Sierra Nevada Corporation (SNC) has successfully concluded the first of its CRS2 contract milestones, as it pushes towards missions – via the cargo version of the Dream Chaser spacecraft – to conduct resupply runs to the International Space Station (ISS). Meanwhile, the company is also continuing to prepare the crew Dream Chaser for a second free flight in California.

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Sierra Nevada Proposing DreamChaser as X-37B Alternative

Sierra Nevada Corporation (SNC) believes its Dream Chaser could be a viable alternative to the Boeing X-37B Orbital Test Vehicle for long-duration, recoverable experimentation in space.

The company says its vehicle, which is still in development, could be called upon to support the kinds of missions the US Air Force is currently conducting with the X-37B.

With an updated, folding-wing design unveiled earlier this year, SNC’s Dream Chaser can be launched inside a standard Atlas V or Delta IV payload fairing and can “stay on orbit well in excess of a year”, the company says.

SNC Space Systems corporate vice-president Mark Sirangelo says that while he cannot say what types of missions the Orbital Test Vehicle programme is trying to accomplish, Dream Chaser would be a larger and viable alternative to Boeing’s experimental spacecraft.

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Sierra Nevada Still Chasing DreamChaser Dream

Sierra Nevada Corporation’s Dream Chaser spaceplane is still holding on to the hope of flying missions for NASA despite losing out on the role of a Commercial Crew carrier for the Agency. Although little information has been heard about the future of the spacecraft of late, SNC is hoping to win favor from NASA in the upcoming award of the Cargo Resupply Services 2 (CRS2) contract.

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Why NASA did NOT Select Sierra Nevada's DreamChaser

As Boeing and Space Exploration Technologies (SpaceX) restart work on commercial crew contracts following NASA’s Oct 9. decision to lift a stop-work order, details of an internal agency document reveal why the bid from losing competitor Sierra Nevada lost out.

The three companies competed for $6.8 billion worth of Commercial Crew Transportation Capability (CctCap) contracts to transport NASA astronauts to the international space station (ISS) starting in 2017. However, following the awards of work to Boeing for the CST-100 and to SpaceX for the Dragon V2, Sierra Nevada -- which proposed the Dream Chaser lifting body -- filed a protest with the U.S. Government Accountability Office (GAO) on Sept 26, citing “inconsistencies in the source selection process.”

In response, NASA issued a stop-work order to Boeing and SpaceX on Oct 2, only to rescind it a week later on the grounds that a delay to development of the transportation service, “poses risks to the ISS crew, jeopardizes continued operation of the ISS, would delay meeting critical crew size requirements, and may result in the U.S. failing to perform the commitments it made in its international agreements.” The GAO has until Jan. 5, 2015, to rule on Sierra Nevada’s protest.

The internal document, signed by NASA Associate Administrator William Gerstenmaier on Sept. 15, the day before the contract awards were announced, says, “I consider SNC’s (Sierra Nevada Corp.) design to be the lowest level of maturity, with significantly more technical work and critical design decisions to accomplish. The proposal did not thoroughly address these design challenges and trades.” Gerstenmaier goes on to say that Sierra’s proposal “has more schedule uncertainty. For example, some of the testing planned after the crewed flight could be required before the crewed flight, and the impact of this movement will greatly stress the schedule.”

A copy of Gerstenmaier’s document was obtained by Aviation Week.

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Sierra Nevada Corp to Launch First DreamChaser (unmanned) in Nov 2016

Sierra Nevada Corporation (SNC) announces that it has confirmed that the first orbital flight of its Dream Chaser® Space System will occur on November 1, 2016. Dream Chaser will be brought to orbit on a United Launch Alliance (ULA) Atlas V rocket that is being built in Decatur, Alabama and will launch from Cape Canaveral, Florida.

During SNC’s press event at the John F. Kennedy Space Center (KSC), which was carried live on NASA TV, Mark N. Sirangelo, corporate vice president and head of Sierra Nevada Space Systems also unveiled the plans for Dream Chaser flight operations and vehicle processing in Florida through a detailed multi-part presentation.

Sirangelo started the announcement by saying, “SNC is thrilled to be the first company to confirm a launch date for our country’s return to orbital human spaceflight and the restart of human spaceflight operations from Florida’s Space Coast. We could not have done this without the spirit and engagement from our national and state governments, the best aerospace companies in the industry, and several major universities, which all hail from over 30 states. Together these passionate people will return our astronauts to space on American spacecraft and rockets launched from America’s space coast right here in Florida.”

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Sierra Nevada's Dream Chaser Free Flight (minus crash landing)

Sierra Nevada's DreamChaser Suffers Mishap From Failed Landing Gear, Causes DC to Flip

[Yesterday], Sierra Nevada Corporation (SNC) performed its first free-flight approach-and-landing test of the Dream Chaserspacecraft. The vehicle successfully released from its carrier aircraft, an Erickson Air-Crane helicopter, as planned at approximately 11:10 a.m. Pacific Standard [sic] Time. Following release, the Dream Chaser spacecraft automated flight control system gently steered the vehicle to its intended glide slope. The vehicle adhered to the design flight trajectory throughout the flight profile. Less than a minute later, Dream Chaser smoothly flared and touched down on Edwards Air Force Base’s Runway 22L right on centerline. While there was an anomaly with the left landing gear deployment, the high-quality flight and telemetry data throughout all phases of the approach-and-landing test will allow SNC teams to continue to refine their spacecraft design. SNC and NASA Dryden are currently reviewing the data.

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