Tag: SpaceX

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Capitalism in space: SpaceX engineers yesterday performed static fire tests of both its Superheavy prototype #7 and its Starship prototype #24.

The Superheavy prototype fired one engine, and did so only a few weeks after that prototype experienced an explosive event the launchpad during earlier fueling/engine tests. Yesterday’s engine test was the first time any Superheavy prototype had fired its engines on the launchpad.

The Starship prototype meanwhile fired two engines on a nearby vertical test stand.

SpaceX’s plan is to stack #24 on top of #7 and attempt an orbital launch test that will have the Superheavy prototype land in the Gulf of Mexico while the Starship prototype reaches orbit and then returns to Earth in the Pacific northeast of Hawaii. Based on the company’s normal pace of operations, that flight is probably only weeks away. However, before that flight engineers will have to do a full static fire test of all 33 of #7 engines, and then like do it again with Starship #24 stacked on top.

Capitalism in space: SpaceX in July raised $250 million in investment capital from five unnamed investors, bringing the total raised in 2022 to $2 billion.

Added to the amount brought in before this year, SpaceX has raised about $9 billion in private capital, most of which is focused on financing the development of Starship/Superheavy. When you add the $2.9 billion contract it won from NASA to develop Starship as a manned lunar lander, the company has raised about $12 billion to build this heavy lift rocket.

The numbers demonstrate several things. First, Wall Street is apparently very confident SpaceX will succeed in building the rocket, and then make a lot of money from it. Second, the numbers prove it shouldn’t cost $60 billion and two decades to design and build a heavy lift rocket, as NASA has done with its SLS rocket. SpaceX is doing it for less than a fifth of the cost, in a third of the time.

Link here. The main focus of the article is the state of Superheavy prototype #7, which experienced an explosion and some damage during testing earlier this month.

The day after the anomaly, Elon indicated on Twitter that Booster 7 would roll back to the production site to work on repairs to the vehicle and assess the next steps. Rollback occurred on July 14, and in the following days, it’s been observed that several Raptor engines have been taken off from the vehicle, likely for further inspection and testing at SpaceX’s McGregor test facility a few hours drive up north from Starbase.

As of writing, repairs are continuing on Booster 7, and it will likely still be undergoing repairs for the next week or two. So while an early retirement for the vehicle could be expected, the current target by teams is still an orbital flight by Booster 7 and Ship 24 with a notional target date of late August for the flight.

If SpaceX decides to retire #7, it already is prepping #8 and #9, with #8 likely to be put on the launchpad for testing in the next week.

The target date for that first orbital launch is still in August, but that schedule appears increasingly unlikely.

Capitalism in space: SpaceX’s Superheavy prototype #7 exploded yesterday during a tanking test in Boca Chica, Texas.

I have embedded the video of the explosion below, cued to just before it occurred.

According to Musk, the engineering teams are presently assessing damage. The booster itself appeared relatively intact afterward, though leaning slightly to one side.

At a minimum this incident will delay the orbital launch attempt, especially if booster #7 must be replaced with booster #8, already being prepped in the assembly building nearby.

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Capitalism in space: Having moved its 7th prototype Superheavy booster to the launch pad in Boca Chica even as its installs the six Raptor engines on the 24th prototype of Starship, SpaceX is now about to begin the final engines tests prior to the first orbital Starship/Superheavy flight.

For the first time the chopstick arms on the launch tower were used to lift and place the Superheavy booster onto the pad. It is expected that static fire tests of its 33 Raptor engines could begin within the next few weeks.

The orbital Starship meanwhile is still in the assembly building, where engineers are installing its own six Raptor engines.

Though SpaceX has not made public the exact schedule of tests leading to launch, it is expected that the company will do a short static fire test program with Superheavy alone, and then do a follow-up short series of tests once the Starship prototype is stacked on top. Based on past history, if the tests show no problems SpaceX will quickly move to launch. Though there have been indications that it is targeting July, it would not be surprising if that date slips to August.

The race between Starship and SLS for which will get into orbit first appears to be tightening.