5 Matching Annotations
  1. Sep 2017
    1. – Two days ago, one of our rocket buses was denied permission for an emergency landing.

      I have never seen this movie, so the start of this scene is a bit confusing. Why are these people secluded from what seems like the rest of society? I also notice that there are no people of color aboard on this "rocket bus;" it seems like only the upper class are included so far.

  2. May 2016
    1. Simulation tests indicate that manual control of the capsule attitude during retrograde firing will be a difficult task requiring much practice on the part of the pilot. By changing the command function from acceleration to rate, the task complexity will be greatly reduced and the developmental effort on display and controller characteristics can be reduced accordingly
    2. There is a natural reluctance to relinquish the mechanical linkage to the solenoid valves but the redundant fly-by-wire systems offer mechanical simplification with regard to plumbing and valving hydrogen peroxide
    1. Three retro rockets fire for 10 seconds each. They are started at 5 second intervals, firing overlaps for a total of 20 s. Delta V of 550 ft/s (168 m/s) is taken off forward velocity.
  3. Dec 2015
    1. On Monday evening, for the first time in aerospace history, a rocket took off vertically from its launchpad, pierced the boundary of space and deposited its second stage into orbit, and returned intact to Earth, landing upright not far from where its journey began.

      https://www.youtube.com/watch?v=1B6oiLNyKKI SpaceX Falcon 9 first stage vertical landing