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08-11-20

Crew Dragon Demo-2 Splashdown

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Wikipedia dicit:

Crew Dragon Demo-2 (officially Crew Demo-2, SpaceX Demo-2, or Dragon Crew Demo-2) was the first crewed test flight of the Crew Dragon spacecraft. The spacecraft, named Endeavour, launched on 30 May 2020 at 19:22:45 UTC and carried NASA astronauts Douglas Hurley and Robert Behnken to the International Space Station in the first crewed orbital spaceflight launched from the United States since the final Space Shuttle mission, STS-135, in 2011, and the first ever operated by a commercial provider. Demo-2 was also the first two-person orbital spaceflight launched from the United States since STS-4 in 1982.

Demo-2 was intended to complete the validation of crewed spaceflight operations using SpaceX hardware and to receive human-rating certification for the spacecraft, including astronaut testing of Crew Dragon capabilities on orbit. During their time aboard, Behnken conducted four spacewalks with fellow American astronaut Chris Cassidy to replace batteries brought up by a Japanese cargo vehicle.

Docking and undocking operations were autonomously controlled by the Crew Dragon, but monitored by the flight crew in case manual intervention becomes necessary. The spacecraft soft docked with the International Space Station at 14:16 UTC on 31 May 2020. Following soft capture, 12 hooks were closed to complete a hard capture 11 minutes later. Hurley and Behnken worked alongside the crew of Expedition 63 for 62 days. Endeavour autonomously undocked from the station at 23:35 UTC on 1 August 2020 and returned the astronauts to Earth on 2 August 2020 in the first water landing by astronauts since 1975.

Endeavour will be refurbished and reused for the SpaceX Crew-2 mission, expected to launch in February 2021. Crew Dragon’s next mission, SpaceX Crew-1 — SpaceX’s first operational astronaut flight — is slated to fly with four Expedition 64 astronauts in late September 2020.

Video credit: NASA/SpaceX

 

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NASA dicit:

Dragon 2 is a class of reusable spacecraft developed and manufactured by U.S. aerospace manufacturer SpaceX, intended as the successor to the Dragon cargo spacecraft. The spacecraft launches atop a Falcon 9 Block 5 rocket and returns via ocean splashdown. When compared to Dragon, Crew Dragon has larger windows, new flight computers and avionics, redesigned solar arrays, and a modified outer mold line.

The spacecraft has two planned variants – Crew Dragon, a human-rated capsule capable of carrying up to seven astronauts, and Cargo Dragon, an updated replacement for the original Dragon. Crew Dragon is equipped with an integrated launch escape system in a set of four side-mounted thruster pods with two SuperDraco engines each. Crew Dragon has been contracted to supply the International Space Station (ISS) with crew under the Commercial Crew Program, with the initial award occurring in October 2014 alongside Boeing CST-100 Starliner. Crew Dragon’s first non-piloted test flight to the ISS launched in March 2019.

SpaceX conducted an in-flight abort test from Kennedy Space Center Launch Complex 39A in Florida on 19 January 2020 at 15:30 UTC. The Crew Dragon test capsule was launched in an atmospheric flight to conduct a separation and abort scenario in the troposphere at transonic velocities, at max Q, where the vehicle experiences maximum aerodynamic pressure. The test objective was to demonstrate the ability to safely move away from the ascending rocket under the most challenging atmospheric conditions of the flight trajectory, imposing the worst structural stress of a real flight on the rocket and spacecraft. The abort test was performed using a regular Falcon 9 Block 5 rocket.

Video credit: NASA/SpaceX

 

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12-9-19

SpaceX CRS-19

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Wikipedia dicit:

The SpaceX Dragon is a reusable cargo spacecraft developed by SpaceX, an American private space transportation company. Dragon is launched into orbit by the company’s Falcon 9 launch vehicle.

During its maiden flight in December 2010, Dragon became the first commercially built and operated spacecraft to be recovered successfully from orbit. On 25 May 2012, a cargo variant of Dragon became the first commercial spacecraft to successfully rendezvous with and attach to the International Space Station (ISS). SpaceX is contracted to deliver cargo to the ISS under NASA’s Commercial Resupply Services program, and Dragon began regular cargo flights in October 2012.

On 3 June 2017, the CRS-11 capsule, largely assembled from previously flown components from the CRS-4 mission in September 2014, was launched again for the first time, with the hull, structural elements, thrusters, harnesses, propellant tanks, plumbing and many of the avionics reused while the heat shield, batteries and components exposed to sea water upon splashdown for recovery were replaced.

Video Credit: NASA Kennedy/SpaceX

 

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10-24-19

SpaceX Starship

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Wikipedia dicit:

The SpaceX Starship is a fully reusable second stage and space vehicle being privately developed by SpaceX. It is being designed to be a long-duration cargo- and passenger-carrying spacecraft. While currently it is tested on its own, it will be used on orbital launches with an additional booster stage, the Super Heavy, where Starship would serve as the second stage on a two-stage-to-orbit launch vehicle. The combination of spacecraft and booster is called Starship as well. Beginning in mid-2019, prototype versions are being flown with Starship as an independent rocket in its own right—without any launch vehicle booster stage at all—as part of an extensive suborbital flight testing program to get launch and landing working and iterate on a variety of design details, particularly with respect to atmospheric reentry of the vehicle.

Integrated system testing of Starship began in March 2019 with the addition of a single Raptor rocket engine to the first flight-capable propellant structure, Starhopper. Starhopper was used through August 2019 for static testing and low-altitude, low-velocity flight testing of vertical launches and landings in July/August. Two additional test articles, Starship orbital prototypes, are being built by competing teams in Texas and in Florida. They are planned to be used for high-altitude, high-velocity testing beginning in late 2019. All test articles have a 9-meter (30 ft)-diameter stainless steel hull.

Video Credit: SpaceX

 

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NASA dicit:

The SpaceX CrewDragon spacecraft parachutes successfully deploy during the latest development test. This test simulated a pad abort, where the vehicle is tumbling at low altitude before parachute deploy, validating SpaceX’s parachute models and margins. As a part of NASA’s Commercial Crew Program, SpaceX has been developing and testing the Crew Dragon parachute system, which is comprised of two drogue parachutes and four main ring-sail parachutes—the same type of parachutes that have been commonly and successfully used for human spaceflight in the past.

Video Credit: NASA

 

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09-5-19

150 Meter Starhopper Test

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Wikipedia dicit:

The construction of the initial test article—the “Starship test flight rocket” “test hopper,” “Starship Hopper” or “Starhopper” —was begun in early December 2018 and the external frame and skin was complete by 10 January 2019. Constructed outside in the open on a SpaceX property just two miles (3.2 km) from Boca Chica Beach in South Texas, the external body of the rocket rapidly came together in less than six weeks. Originally thought by watchers of construction at the SpaceX South Texas Launch Site to be the initial construction of a large water tower, the stainless steel vehicle was built by welders and construction workers in more of a shipyard form of construction than traditional aerospace manufacturing. The full Starhopper vehicle is 9 meters (30 ft) in diameter and was originally 39 meters (128 ft) tall in January 2019. Subsequent wind damage to the nose cone of the vehicle resulted in a SpaceX decision to scrap the nose section, and fly the low-velocity hopper tests with no nose cone, resulting in a much shorter test vehicle.

Video Credit: SpaceX

 

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