User account menu. Close. SpaceX dévoile le nouveau design de la BFR et prévoit un survol de la Lune en 2023 — Actualités du 18 septembre 2018 — Il y a deux ans, SpaceX présentait le projet BFR, une fusée spatiale et un vaisseau spatial capables d’emmener des hommes jusqu’à la planète Mars, et au-delà. When point to point transport and mars missions occuring regularly, does it become a real concern that this may accelerate global warming? requiring a hover-slam landing approach.Is this dry mass estimate accurate, and will the tanker indeed (have to) perform a hover-slam when landing on Earth, or will it use some other technique?Landing will not be a hoverslam, depending on what you mean by the "slam" part.

SpaceX is hiring for jobs with "BFR" in their titles for the first time. I recall reports a few months back about the hole ripped into the ionosphere by a single Falcon 9 launchAlso of interest to me, and I’m sure it’s negligible for the time being, but once you get 1000 ships on a biannual cycle to mars, using a majority of their fuel outside the atmosphere, don’t we lose a lot of water exhaust to space? (even partially).I used published values on Wikipedia for combustion conditions and CEArun [1] to calculate nozzle entrance conditions. About a 1:4.5 ratio.For environmentally friendly earth to earth flights in the future they could switch to hydrolox propellant which has zero emissions, driving to to the port would be the most harmful part of the trip. If our engine is even close to a jet engine in reliability, has a flak shield to protect against a rapid unscheduled disassembly and we have more engines than the typical two of most airliners, then exceeding airline safety should be possible.That will be especially important for point to point journeys on Earth.

The tanker will only feel the 0.3 part, as gravity cancels out the 1.

Launch is also around 1.3 T/W, so it will look pretty much like a launch in reverse....The sub-scale Raptor prototype has a (speculated) thrust of about ~100 tons-force currently, and will be scaled up to ~170 tons-force Can you tell us more about the current status and expected (best-case) timeline of this scale-up effort?Thrust scaling is the easy part. This AMA is a follow up to my IAC 2017 talk: Welcome everybody. Down the road, we might add a cryocooler.New comments cannot be posted and votes cannot be castShare & discuss informative content on: As excited as I am for upcoming Mars missions, I certainly believe that lunar missions will likely come first, whether as NASA missions or just SpaceX testing BFR's capabilities close to home.

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