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SpaceX’s crewed Dragon launch debut likely to slip into 2020 as NASA pursues “realistic” dates

SpaceX's first flightworthy Crew Dragon spacecraft rolls out to Pad 39A atop Falcon 9 B1051 on Feb 28, ready for its inaugural trip to low Earth orbit. (SpaceX)

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6 years ago

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In a recent blog post, NASA made it clear that changes happening to leadership within the agency – specifically within the Human Exploration and Operations Directorate – are impacting the timelines to return astronauts to the International Space Station(ISS) from US soil. Agency conflicts are just the latest of several setbacks that have impacted the schedule of SpaceX’s crewed Crew Dragon launch debut.

Initially, the SpaceX Demo-2 mission set to carry NASA astronauts Bob Behnken and Doug Hurley to the ISS was slated to occur in the summer of 2019. That demonstration flight has since dropped off of the NASA launches and landings schedule, at least through October. SpaceX is now targeting a Demo-2 launch no earlier than December 2019 but an array of critical milestones must be completed to achieve that goal and both SpaceX and NASA have been keen to express that a crewed Crew Dragon launch in 2019 is a huge stretch.

NASA astronauts Bob Behnken (left) and Doug Hurley (right), are assigned to fly on Crew Dragon’s Demo-2 test flight and will thus become the first humans to fly in a SpaceX spacecraft. (NASA)

According to the recent blog post, “NASA Administrator (Jim Bridenstine) has directed all programs in the Human Exploration and Operations Directorate to reexamine flight dates once new leadership is in place to deliver realistic schedule plans.” It is very likely that these new schedule plans will push the Demo-2 launch target into 2020.

Another roadblock that affects the timeline is the fact that SpaceX has yet to conduct an in-flight abort (IFA) test of the Crew Dragon capsule, meant to demonstrate the ability of the capsule’s SuperDraco thruster abort system to safely return crewmembers back to Earth in the event of an in-flight failure. SpaceX’s IFA has been delayed by multiple months after a catastrophic anomaly during an attempted April 2019 static fire test of the abort system resulted in the complete loss of the Crew Dragon capsule (C201), originally assigned to support the IFA. Although the capsule was destroyed, valuable lessons were learned about the pressurization and propulsion systems of Crew Dragon, particular “the flammability of the check valve’s titanium internal components” according to a July 15th statement released by SpaceX.

SpaceX’s first spaceworthy Crew Dragon capsule seen prior to its first Falcon 9-integrated static fire and a post-recovery test fire three months later. (SpaceX)

As a result of the loss of C201, the in-flight abort test must now use the Crew Dragon capsule (C205) originally intended for the Demo-2 to transport Behnken and Hurley to the ISS. The findings from the anomaly investigation identified changes to the SuperDraco thruster abort system that would need to be made to all capsules currently in production prior to any future flights. SpaceX states that “thorough testing and analysis of these mitigations has already begun in close coordination with NASA, and will be completed well in advance of future flights.”

Pending SpaceX’s modification of Dragon 2 hardware and NASA’s approval, a new launch date for the in-flight abort test could be announced as early as August. According to SpaceX CEO, Elon Musk, Falcon 9 Block 5 booster B1048.3 – the second booster to successfully complete three launches and landings – will likely support Crew Dragon’s in-flight abort test, although there have been indications from NASASpaceflight.com that B1046.3 is also a candidate.

Step by step

Following a successful in-flight abort test and recovery of the Crew Dragon capsule, a joint flight readiness review will be conducted by SpaceX, NASA’s Human Exploration and Operations Directorate (HEOD), the Commercial Crew Program (CCP), and the International Space Station Program to settle on a launch date for Demo-2. This meeting will ensure that all parties are well-versed in the procedures required to support crewed spaceflight missions from US soil after an almost decade-long hiatus.

Another anticipated safety procedure that is assumed to be tested prior to the designation of a crewed flight date is a full rehearsal of emergency escape procedures at Launch Complex 39A (LC-39A), located at Kennedy Space Center, Florida. A joint version of this test was recently completed by NASA, Boeing, and United Launch Alliance in anticipation of crewed flights launching from Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida. As an escape system has not been necessary at LC-39A since the retirement of the Shuttle program, SpaceX and NASA may participate in a similar demonstration utilizing a recently installed zip-line egress system on the Fixed Service Structure of LC-39A.

Newly installed egress zip lines are observed leading away from the redesigned Fixed Service Structure during Apollo 11 50th Anniversary Celebrations at Pad 39A. (NASA)

Although there is some time remaining in the year for SpaceX and NASA to meet all pre-flight objectives, it seems more likely that a crewed SpaceX demonstration mission to the ISS will occur sometime in 2020. As NASA said “we are testing, learning and incorporating changes to improve the design and operation of these next-generation human space transportation systems. As a result, our providers have improved the safety of these systems, and the effect of these changes have impacted schedules.”

Finally, according to recent reports from a handful of Russian media outlets, Crew Dragon’s inaugural crewed launch is believed to be scheduled for absolutely no earlier than (NET) mid-December 2019, although all signs point to that date being purely for planning purposes. In short, Crew Dragon’s Demo-2 mission is all but guaranteed to slip into 2020, but those delays will (hopefully) result in a significantly safer and more reliable spacecraft.

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SpaceX and Elon Musk explain potential reasons for Starship loss

Published

2 months ago

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January 17, 2025

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Credit: SpaceX

SpaceX and its CEO Elon Musk are starting to shed some light on the potential reasoning for the loss of Starship yesterday, which was lost after a successful launch and catch of the lower-stage booster.

Starship was lost during its ascension, and debris rained down over the Caribbean less than an hour after SpaceX lost all communication with the spacecraft.

A few hours after the launch was over, SpaceX started to shed some light after looking at preliminary data that the rocket left behind.

The company said that a fire developed in the aft section of Starship:

“Following stage separation, the Starship upper stage successfully lit all six Raptor engines and performed its ascent burn to space. Prior to the burn’s completion, telemetry was lost with the vehicle after approximately eight and a half minutes of flight. Initial data indicates a fire developed in the aft section of the ship, leading to a rapid unscheduled disassembly with debris falling into the Atlantic Ocean within the predefined hazard areas.”

Additionally, Musk said that there was some sort of oxygen or fuel leak in the cavity above the ship engine firewall.

The leak was evidently large enough to build more pressure than the vent was able to handle:

Some also seemed to recognize evidence of fires throughout the flight of Starship, which is obviously an anomaly:

There will be more information regarding the loss of Starship in the coming days and weeks, but Musk already believes that a bit of fire suppression and more volume in the cavity above the ship engine firewall could fix the issue.

“Nothing so far suggests pushing next launch past next month,” he said, so Flight 8 could happen sometime in February.

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SpaceX completes second catch of lower stage, but loses Starship

Published

2 months ago

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January 16, 2025

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Credit: SpaceX

SpaceX completed its seventh launch of Starship on Thursday, accomplishing a clean liftoff and catch of the first-stage booster. However, the upper stage was lost after its ascent.

The launch took place just a few minutes after 5 p.m. on the East Coast, as the first attempts at getting Starship in the air for the seventh time were delayed by weather both last week and this week.

Conditions were favorable on Thursday as SpaceX looked to follow up a successful campaign by Blue Origin, Jeff Bezos’s company, earlier today.

SpaceX went into the seventh Starship launch with plans for a catch attempt of the first-stage booster, something it attempted and completed during the fifth test launch last year. It decided to skip a catch attempt with the sixth test flight as conditions were not aligned.

For now, SpaceX is extremely selective as to when it attempts catches.

However, it was successful during this attempt, its second completed catch:

This flight differed from previous launches as SpaceX rolled out several improvements to the rocket and the processes as it featured plans to do a Starlink deployment simulation and had various adjustments to flap placement and avionics.

These plans were disrupted by the fact that SpaceX lost all communications with Starship about ten minutes into the flight, which the aerospace company confirmed was a result of losing the spacecraft sometime during its ascent.

Although the catch was successful, the loss of the actual rocket seemed to be a huge damper on the entire event. SpaceX confirmed several minutes after the loss of communications that the rocket was destroyed and was lost.

It was its first failure since the second Starship launch in November 2023. SpaceX had no answers for why the rocket was destroyed and lost.

We will keep you updated in the coming days.

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SpaceX confirms next Starship launch target – Here’s when it will take off

Published

2 months ago

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January 9, 2025

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spacex starship upper stage catch
Credit: Elon Musk | X

SpaceX has confirmed a new target date for the seventh Starship test launch after weather in Texas delayed the first scheduled date for “three or four days.”

The company is now targeting the launch for Monday, January 13, at 4 p.m. CST or 5 p.m. EST. The launch date is not set in stone as any variety of delays could impact this, but SpaceX hopes to finally take off after a delay that pushed it back from January 10.

What’s new with this Starship launch

With this being the seventh test launch of Starship, there are several things that the company will change and hope to accomplish. All of these launches are done in preparation for eventually taking flight to Mars, something that will happen next year, according to CEO Elon Musk.

First, SpaceX is rolling out a next-generation ship with “significant upgrades.” Forward flaps have been made smaller and are repositioned away from the heat shield, which will “reduce their exposure to reentry heating.”

SpaceX eyes 25 annual Starship launches starting next year

There is also a 25 percent increase in propellant volume, a new fuel feedline system for the Raptor vacuum engines, and a better-than-ever propulsion avionics module that will control the valves and reading sensors.

Avionics, as a whole, underwent a redesign and now have more capability and redundancy for missions as they become more complex.

Starlink test

SpaceX is also planning to deploy 10 Starlink simulators that are similar in size and weight to the next-generation Starlink satellites:

“While in space, Starship will deploy 10 Starlink simulators, similar in size and weight to next-generation Starlink satellites as the first exercise of a satellite deploy mission. The Starlink simulators will be on the same suborbital trajectory as Starship, with splashdown targeted in the Indian Ocean. A relight of a single Raptor engine while in space is also planned.”

Ship return and catch

There will be several experiments that have to do with returning Starship and various catch scenarios and sequences. One of which will see “a significant number of tiles be removed to stress-test vulnerable areas across the vehicle.”

The ship’s reentry profile was also intentionally designed to test the structural limits of the flaps while at the point of maximum dynamic pressure during reentry.

Currently, SpaceX did not detail whether it would attempt another catch during this test launch. These are usually game-time decisions.

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