Connect with us

SpaceX

SpaceX prepares for last launch until August: Caution over cadence

Published

8 years ago

on

After a second automatic T-10s launch abort Monday night, Elon Musk expressed a welcome prioritization of caution over an attempt to break cadence records. As such, the launch team at LC-39A are standing down an attempt today and instead conducting a full review of the Falcon 9 vehicle and ground systems, pushing the launch to either July 5th or 6th. As Musk transparently phrased it, there is only one chance to get a rocket launch right.

Following a truly unprecedented series of launches for the company, there was understandably a bit of annoyance from fans watching the coverage for a second time, as well as from journalists seeking to cover the launch. I think a tweet from former NASA Space Shuttle Program Manager Wayne Hale summed up the proper response most coherently, however, stating that “it’s tough to remain vigilant and do the right thing, extremely tough after a couple of launch scrubs and [with] range closure looming”. Remaining vigilant is precisely what SpaceX is doing by calling off another attempt on July 4th and choosing to instead carefully examine the systems involved to ensure that there is no real issue with pad or vehicle hardware.

For launch companies, there are an untold number of external and internal pressures urging executives to attempt launches, be those financial, political, or something as simple as employees wanting to get home for a holiday. However, past failures of launch vehicles, particularly the Space Shuttle, have demonstrated that constant vigilance is a necessity when dealing with rocketry. Wayne Hale was flight director for forty Shuttle launches. In fact, he became Program Manager the day of the Columbia disaster, which occurred at the beginning of February in 2003.

In this context, his statement is almost certainly intended as positive – albeit solemn – encouragement for the choice to take a more cautious route before attempting another launch. SpaceX itself has experienced two widely publicized failures of the Falcon 9, with the most recent of those having occurred less than ten months ago. After China suffered a complex failure during the second launch of their Long March 5 heavy lift vehicle last Sunday, Musk offered sympathy for those involved. Any failure in the launch industry often acts as a wake-up call for other companies and agencies involved, and undoubtedly becomes a reminder that one cannot become too comfortable or allow launch processes or vehicle manufacturing to become too routine when the stakes are as high as they can be.

It goes without saying that SpaceX is sharply aware of the need to ensure reliability and safety as they march ever closer to the debut flight of Crew Dragon and its first crewed launches, likely to occur in early 2018. If the stakes for launching the payloads of commercial customers are already high, the price of failures that could lead to loss of life are unspeakable and ought to humble those fans and bystanders who may be losing patience while waiting for a third (admittedly enthralling) launch. Those eager to watch SpaceX’s live coverage must seek to remember that the launches we love to watch occur because paying customers have placed trust in SpaceX to deliver their payloads to orbit, be those payloads massive geostationary communications satellites or astronauts and cargo headed to the ISS. Rightfully so, the customer will always come first, and routine live coverage of rocket launches must always be treated as the luxury it is for the indefinite future.

SpaceX has successfully recovery and reused both Falcon 9 and Cargo Dragon in the last several weeks, and has also recovered three first stages from the three related launches that occurred in that same time period. (SpaceX)

Admittedly, a cornerstone of SpaceX’s mission as a company is making access to orbit reliable, affordable, and routine, but there will always be risk in rocket launches, just as there will always be risk when one boards a plane, drives a car, or simply walks down the sidewalk along a busy street. Minimizing and reducing the risk present in spaceflight will take a considerable amount of time and effort, and doing what is necessary to prevent failures from negatively impacting the customers that make SpaceX viable as a company is both a rational and ethical strategy.

Returning to current events, the Falcon 9 intended to launch Intelsat 35e went horizontal on July 4, and is likely now in the integration facility present at LC-39A, providing easier access to engineers as they comb over the vehicle to ensure its health. After an absolutely picturesque launch attempt Monday evening, weather is looking even better for a potential launch attempt on either Wednesday or Thursday evening.

If the vehicle and pad cooperate, Intelsat 35e will be a facing send off for the Eastern Range before it shuts down for the remainder of July to undergo routine maintenance. SpaceX currently does not have Vandenberg (West coast) missions scheduled until August, so July will likely see no launches from the company. There is still plenty to be done in lieu of launching customer payloads, however. LC-40, the pad damaged in the Amos-6 static fire incident last September, is currently preparing to be reactivated, with a recent interview of Gwynne Shotwell pointing to its initial availability sometime in August. Once it is reactivated, all single core Falcon launches will be transferred to LC-40, and LC-39A will begin undergoing structural modifications to accommodate both crewed missions in 2018 and Falcon Heavy, which could debut as early as Q4 of 2017.

The two most visible changes that will occur at LC-39A will be the installation of additional hold-down clamps and modifications to the Transporter Erector, as well as a Crew Access Arm, which will be attached to the large, vertical structure seen directly right of Falcon 9. Of note, it is very likely that at least two, if not all three of the first Falcon Heavy’s cores are already present at the Cape. After years of being deemed a paper rocket, Falcon Heavy is indeed very real and very close to being able to conduct its first launches.

A month of no launches from SpaceX will undoubtedly be less than thrilling, but the Air Force and Kennedy Space Center employees will get a much-deserved break from a busy launch manifest ahead of what will likely be an even busier final four months of the year. There is a lot to look forward to.

Related Topics:

Eric Ralph is Teslarati's senior spaceflight reporter and has been covering the industry in some capacity for almost half a decade, largely spurred in 2016 by a trip to Mexico to watch Elon Musk reveal SpaceX's plans for Mars in person. Aside from spreading interest and excitement about spaceflight far and wide, his primary goal is to cover humanity's ongoing efforts to expand beyond Earth to the Moon, Mars, and elsewhere.

Continue Reading
Comments

News

SpaceX and Elon Musk explain potential reasons for Starship loss

Published

2 months ago

on

January 17, 2025

By

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.

Need accessories for your Tesla? Check out the Teslarati Marketplace:

Please email me with questions and comments at joey@teslarati.com. I’d love to chat! You can also reach me on Twitter @KlenderJoey, or if you have news tips, you can email us at tips@teslarati.com.

Continue Reading

News

SpaceX completes second catch of lower stage, but loses Starship

Published

2 months ago

on

January 16, 2025

By

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.

Need accessories for your Tesla? Check out the Teslarati Marketplace:

Please email me with questions and comments at joey@teslarati.com. I’d love to chat! You can also reach me on Twitter @KlenderJoey, or if you have news tips, you can email us at tips@teslarati.com.

Continue Reading

News

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

Published

2 months ago

on

January 9, 2025

By

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.

Need accessories for your Tesla? Check out the Teslarati Marketplace:

Please email me with questions and comments at joey@teslarati.com. I’d love to chat! You can also reach me on Twitter @KlenderJoey, or if you have news tips, you can email us at tips@teslarati.com.

Continue Reading