虎嗅

Understanding Starship "Thirteen Flight" in One Article

原文:一文读懂星舰“十三飞”

Summary of Key Highlights

SpaceX’s thirteenth flight test (Flight 13) was successfully completed on July 25th, marking a crucial validation of the Starship in its V3 configuration. For the first time, the spacecraft carried 20 actual Starlink V3 satellites (instead of simulated ones), and both the booster and the ship safely landed. Core tests such as the restart of the space engine and a comprehensive inspection of the heat shield were also successfully completed. The team quickly recovered from issues encountered in the previous mission (just two months later) and launched the spacecraft again after promptly fixing the problems. This flight represents a significant milestone as the Starship moves from a prototype to a practical tool, with implications for both the expansion of Starlink’s satellite network and NASA’s lunar exploration efforts.

Detailed Analysis

What Core Tasks Were Completed in This Flight?

This test was more than just a formality; it involved several critical functional verifications:

  • Delivery of Actual Starlink V3 Satellites: For the first time, 20 operational V3 satellites were launched. These satellites have significantly higher capacity compared to the older versions, with each capable of providing data transfer speeds of up to 1 terabit per second. In the future, the Starship will be able to carry 60 satellites, which is 20 times more than what Falcon 9 can deliver at a time. The satellites were deployed using a “candy machine”-style dispenser and also attempted to establish laser connections with existing Starlink satellites to test cross-generation compatibility.
  • Safe Landing of Booster and Ship: The booster splashed down in the Gulf of Mexico after 7 minutes, while the ship restarted its engine after deploying the satellites and successfully re-entered the atmosphere before landing in the Indian Ocean. This demonstrates that the improvements made in previous missions, such as the engine ignition sequence and alarm systems, were effective.
  • Successful Restart of the Space Engine: The restart of the space engine is essential for the Starship to return to Earth after orbiting. A successful restart was achieved this time, despite a previous failure due to an engine issue.
  • Satellites Used for Heat Shield Inspection: Six satellites equipped with cameras were deployed to photograph the ship’s heat shield and apply white markings to simulate missing tiles. This test aimed to assess the system’s ability to quickly detect damage.

How Remarkable Is SpaceX’s “Fast Failure, Fast Learning” Approach?

SpaceX’s strategy of rapidly identifying and resolving issues is evident in this mission:

  • Rapid Fixing: Only two months passed between the previous (12th) flight (the first V3 test) and this one. In response to the booster return failure, the engine ignition sequence was modified, and the reliability of the flip mechanism was enhanced. For the ship’s engine issue, the propulsion system hardware and operation procedures were adjusted, resulting in all engines functioning smoothly during this flight.
  • Efficient Handling of Launch Delays: During the first launch on July 17th, several engines did not ignite, leading to an automatic abort. The team identified the problem and replaced two engines within a day, and the launch was successful seven days later (on July 24th), which is considered extremely fast in the aerospace industry.

Why Are There Divergent Views Among Investors and Aerospace Experts?

The stock price of SpaceX declined after the launch abort, reflecting different perspectives from investors and aerospace professionals:

  • Investors’ Concerns: They worry that repeated delays could slow down the commercialization of the Starship, impacting revenue and profits. They are sensitive to SpaceX’s approach of “fast failure.”
  • Aerospace Experts’ Perspective: Rocket failures are common during testing phases; Falcon 9 has also experienced several explosions in its early days but has since become one of the most widely used rockets. SpaceX’s ability to iterate quickly is a key factor in its competitiveness. Investors who do not understand these dynamics may be misunderstanding the nature of the aerospace industry.

What Are the Implications of This Flight for Starlink and NASA’s Lunar Mission?

This test is crucial for both commercial and technological advancements:

  • Accelerated Expansion of Starlink: The successful deployment of V3 satellites indicates that the Starship can efficiently deliver them into orbit, potentially leading to significant improvements in Starlink’s speed and coverage, especially in remote areas.
  • NASA’s Lunar Mission: The Starship V3 is a critical component of NASA’s Artemis program for lunar landings (scheduled for 2028). This successful flight provides reassurance that the Starship can meet the technical requirements for manned missions.

Progress on the Heat Shield Issue?

The heat shield is a major challenge for making the Starship reusable. This test focused on addressing this issue:

  • Remote Inspection Technology: Satellites were used to photograph the entire heat shield, eliminating the need for manual inspection of thousands of individual tiles. White markings were applied to simulate damage, allowing the system to be tested for its ability to quickly identify issues.
  • Extreme Pressure Testing: The ship was subjected to higher pressures than before to assess the durability of the heat shields. Although risky, this provided valuable data for future improvements.
  • New Installation Methods: New installation methods were tested, including directly attaching heat shields to the ship’s tail fins and experimenting with improved tiles and mechanisms.

This flight brings the Starship one step closer to practical use, demonstrating not only technical feasibility but also reliability to both commercial customers and NASA. It is possible that the Starship could begin operational services later this year, bringing us one step closer to the normalization of space transportation.