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Questions regarding the Falcon launch vehicle developed by SpaceX for medium payloads (15,000 lbs) to LEO and GEO (via GTO, second stage cannot inject into GEO direct)

8
votes
2answers
Very excited about the upcoming test to land the first stage of the next Falcon 9 on an ocean platform. Elon Musk & Co. make it sound incredibly difficult though. I'm assuming that the first stage of …
asked Jan 9 '15 by neelsg
60
votes
8answers
According to what I've read, SpaceX tried to use parachutes to recover the first stage of the Falcon 9, but it did not survive reentry. Now they plan to use 2 separate rocket burns to land: Reentry …
asked Jan 9 '15 by neelsg
32
votes
2answers
I don't know if this would be public, but what CPU / Microcontrollers are used and what software do they run on the Falcon 9? Do they use an OS or is it just bare metal programming? I found some mode …
asked May 29 '15 by neelsg
20
votes
7answers
Presumably, the booster would be a very light, very tall tube (Most of the fuel spent) standing on 4 fairly small legs on a ship in the middle of the ocean. It would also still contain some LOX and RP …
asked Apr 16 '15 by neelsg
28
votes
4answers
What are the reasons for using 9 engines in the first stage of the Falcon 9? Why not 8 or 10? Looking at the Raptor engine, they seem to be looking at 9 engines again. Is there some specific advantage …
asked Jan 16 '15 by neelsg
6
votes
1answer
Looking at the launches and animations for the Falcon 9, you can clearly see some rockets firing at the top/side of the stage to maneuver it clear of the second stage and orient it correctly for retur …
asked Mar 3 '15 by neelsg