[HN Gopher] Simulation of Space Shuttle - STS 62 A Polar Express...
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Simulation of Space Shuttle - STS 62 A Polar Express high altitude
journey
Author : emondi
Score : 74 points
Date : 2021-04-25 13:25 UTC (9 hours ago)
(HTM) web link (forum.flightgear.org)
(TXT) w3m dump (forum.flightgear.org)
| marcodiego wrote:
| Flightgear has so much potential... I really would like to see
| its development advancing faster and become more popular among
| flight-simmers.
| everyone wrote:
| Reminded me of this.. https://youtu.be/_q2i0eu35aY
|
| " The Space Shuttle was a vehicle designed to do many things, and
| in a deal with the US Military it was redesigned to make it able
| to perform a very specific secret mission. The redesign radically
| changed the Shuttle from the early concepts to the actual design
| which we saw fly, but, before the shuttle even flew the secret
| mission had been abandoned.
|
| "
| billfruit wrote:
| I haven't seriously looked into it, but won't Orbiter be better
| than FlightGear for trying this?
| imglorp wrote:
| Looks fun, but sadly windows with MSI installer. Maybe Wine is
| up to the job? Also needs some love, not touched since '17.
| emondi wrote:
| I don't know about orbiter but FlightGear uses JSBsim for
| flight dynamics modeling which can be very accurate and was
| even used at NASA. You are correct that as space is not the
| primary use case for FG the shuttle developers had to start
| from scratch on many things.
| ajdoingnothing wrote:
| I still can't comprehend how the scientists and engineers managed
| to launch STS 1 (test flight) with two astronauts in 1981 -
| without doing a prior test launch with no astronauts inside (like
| SpaceX).. Absolutely incredible. I don't know what it is about
| the Shuttle, but the aesthetics are just really nice. The safety,
| of course, is a different question, but it still has a special
| place in my heart.
| [deleted]
| billfruit wrote:
| Also it was rather astonishing when Soviets did an autonomous
| flight of Buran, perhaps the only time it flew.
|
| https://youtu.be/QH0Lo97Hjjc
| [deleted]
| rpeden wrote:
| They did a lot of static testing of both the SRBs, external
| tank, and main engines before the first flight. This NASA slide
| deck gives a pretty good overview:
|
| https://www.nasa.gov/pdf/552577main_Shuttle_Propulsion_Mitig...
|
| After all of that they were probably confident enough in the
| individual pieces working well individually that they were also
| decently confident that they'd all work well together during
| the STS-1. Although STS-1 through STS4 had ejection seats
| installed for both crew members, just in case. Perhaps the
| thinking was that if anything was going to go wrong, it would
| happen below 80k feet where the ejection seats would still be
| usable.
| dylan604 wrote:
| "-Up to 20 tons of payload capacity on re-entry *1,693,500
| lbs returned to earth*"
|
| I always find myself laughing when propaganda material like
| this mixes units for the benefit of sounding more impressive.
| Capacity of 20 tons, yet they switch to pounds to get a
| larger number. 1,693,500lbs is only 846.75 tons, which just
| doesn't sound nearly as impressive.
| systemvoltage wrote:
| Sidenote: IMO these STS space suits were far better looking than
| the oompa loompa version that SpaceX has devised. In the name of
| minimalism, they've created something that looks like a bad
| hollywood low-budget scifi film (including the purely decorative
| bridge to the space capsule and the touch screen cockpit). It's
| personal opinion/taste but I can't help but look at how beautiful
| and professional it was back in the day. Also, traveling to the
| SpaceX rocket in Tesla Model X is one of the tackiest things I've
| seen.
| xattt wrote:
| Brining Comic Book Guy level of pedanticism, the thing that stood
| out the most for me was that the space shuttle in the sim had a
| glass cockpit with full colour displays.
|
| The shuttle cockpit upgrades didn't take place until
| late-1990s/early-2000s, and before then, it was just green text
| on CRTs.
|
| Regardless, it's amazing to see what people can achieve with
| enough interest and time.
| sjcsjc wrote:
| _Comic Book Guy level of pedanticism_
|
| Pedantry ;-)
| emondi wrote:
| This FlightGear's shuttle is the most accurate version. I think
| the choice of shuttle mission was because of the unusual
| transpolar trajectory.
| xattt wrote:
| The STS 62A polar orbit mission was scheduled to take place
| in 1986, so the model used in the sim doesn't correlate to
| what the shuttle capabilities were at the time.
| gus_massa wrote:
| This reminds me an old video by Scott Manley of an abort
| procedure of the Space Shuttle that never was tried in real life.
| (He used a model in the Kerbal Space Program.) " _Space Shuttle
| RTLS Abort Challenge - Without The Manual_ "
| https://www.youtube.com/watch?v=Iwn3kk-q1YU
| [deleted]
| qwerty1793 wrote:
| Unlike many of his videos which are made using KSP, this RTLS
| Abort Challenge video was made using Orbiter 2016 Space Flight
| Simulator from UCL http://orbit.medphys.ucl.ac.uk/
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(page generated 2021-04-25 23:01 UTC)