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How does SpaceX’s Starship landing system differ from the Falcon 9’s landing system?

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Saturday, January 25, 2025 | Chimniii Desk


Hello, space enthusiasts! 👋 Today, we're going to take a closer look at the landing systems of two remarkable SpaceX rockets: the Falcon 9 and the Starship. As the company continues to push the boundaries of reusability, we'll explore how these two systems differ and what makes them so unique.


First, greetings, tech fans! 🤖 Let's start with the Falcon 9's landing system, which has been the workhorse of SpaceX's reusable rockets. Developed from the Falcon 9's first stage, the landing system is designed to slow down the rocket and then deploy four grid fins to stabilize its descent. During its descent, the rocket uses a combination of thrust from its three engine core and the grid fins to maintain a stable angle of attack. In fact, the Falcon 9 can achieve an impressive 90% of its original speed by using its own thrust to slow down. This technology has been used successfully in numerous landings, with the record for most rocket landings set by a Falcon 9 in 2020, with no less than 13 successful landings! 🤩


Now, let's turn our attention to the Starship's landing system, which is an entirely different beast. Developed specifically for the Starship, this system relies on a combination of three Raptor engines, located at the base of the rocket, to provide the thrust needed for descent. But the real innovation lies in the use of a novel control system, called the "Control Flow" algorithm. Hi, engineers! 🤓 This system continuously adjusts the thrust levels of the three engines in real-time, using data from an array of sensors to maintain a stable descent trajectory. According to SpaceX, the Control Flow algorithm is capable of making over 1,000 decisions per second, enabling the Starship to adjust its landing trajectory with incredible precision.


Another key difference between the Falcon 9 and Starship landing systems is the landing technique itself. The Falcon 9 uses a technique called "hard landing," where the rocket is deliberately brought down to the ground with significant force, often resulting in a bounce. The Starship, on the other hand, is designed to use a more gentle "soft landing" technique, which reduces the impact on the rocket and allows for a more precise landing. In fact, SpaceX engineers have successfully tested the Starship's soft landing technique with the SN15 prototype, which landed vertically on a launchpad with remarkable accuracy. 🎊


Greetings, space travelers! 🚀 The development of the Starship landing system is an impressive display of innovation and engineering prowess. By leveraging advanced technology and algorithms, SpaceX has created a landing system that is capable of achieving incredible precision and reliability. According to Elon Musk, the Starship's landing system has a 1 in 4,000 chance of failure, which is incredibly low considering the complexity of the system.


In conclusion, the Falcon 9 and Starship landing systems differ significantly in terms of their technology and technique. While the Falcon 9 relies on tried-and-true methods, the Starship represents a bold new approach to reusability. With its advanced Control Flow algorithm and soft landing technique, the Starship is poised to revolutionize space travel and make humanity a multi-planetary species. What are your thoughts on the Starship's landing system? Share your ideas below! 💬


#SpaceX #Starship #Falcon9 #LandingSystem #Reusability #SpaceExploration #AerospaceInnovation


image credit: SpaceX