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SpaceX F9 : Starlink group 6-68 : CCSFS SLC-40 : 12 November 2024 (~11:26 UTC) Started by Galactic Penguin SST. 4 Replies. 650 Views. Today at 12:48 pm. by Ken the Bin.
SpaceX Starship - Starbase, Boca Chica, TX - Launch Viewing. Started by russianhalo117 « 1 2 3 ... 5 Next All ». 95 Replies. 75016 Views. 10/09/2024 07:08 pm.
SpaceX would love to recover the second stage, which they had planned. But it sounds like they have given up on that. Transcript - Elon Musk at MIT's Aero/Astro Centennial (part 1 of 6) [What about the second stage?] The next generation vehicles after the Falcon architecture will be designed for full reusability.
196. SpaceX uses an Actor-Judge system to provide triple redundancy to its rockets and spacecraft. The Falcon 9 has 3 dual core x86 processors running an instance of linux on each core. The flight software is written in C/C++ and runs in the x86 environment. For each calculation/decision, the "flight string" compares the results from both cores.
The SpaceX Falcon 9 does a powered touchdown with a rocket thrust higher than mass, so is not able to establish a low altitude hover and final descent as used by the Apollo lander. Instead it needs to reliably generate a sequence of thrust vector and throttle inputs that simultaneously achieve vertical and horizontal speeds of zero while also ...
It's the same reason SpaceX often does things differently: Krypton is a lot cheaper. The satellites are designed to control costs. For example, each will maneuver with Hall-effect thrusters—ion thrusters in which propellant is accelerated by an electric field.
Incidentally, in the absence of much, much more evidence, suggestions that this is a live rat on a filming set at low altitude, and that SpaceX's launch videos are faked, are not credible to me. Commercial, profit-driven corporations appear to give SpaceX a great deal of money to put expensive things into orbit.
The biggest difference is the nozzle.For optimal performance in vacuum, you want a much larger one. According to Spaceflight 101, the chamber pressure is the same, but the expansion ratio (throat area to end-of-nozzle area) is 7 times larger in the vacuum variant, which (if correct) implies about 2.7 times the nozzle diameter if the throat is unchanged.
SpaceX has publicly indicated that the development cost for Falcon 9 launch vehicle was approximately $300 million. Additionally, approximately $90 million was spent developing the Falcon 1 launch vehicle which did contribute to some extent to the Falcon 9, for a total of $390 million.
59084 Posts. 4348 Topics. Last post by Protected. in Protected. on 11/04/2024 06:19 pm. L2 SpaceX Section. L2 SpaceX Section - All vehicles, All missions (past, present, and long-term future) - including All Pads and All Facilities, Exclusive hi-res photos/video, and high-level discussion/evaluation. 60235 Posts.