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  1. Thorsten

    News The Space Shuttle for Flightgear 3.6

    Bermuda landing after a 2 EO Green abort:
  2. Thorsten

    Making Movies

    I've been neglecting the updates a bit (expanded family...) - due to Corona-restrictions we didn't advance too much with Cliodhna (as it is difficult to assemble a larger cast...) but we decided to have a go at a different project - A Sword and his Hero - a series of rather short humorous...
  3. Thorsten

    News The Space Shuttle for Flightgear 3.6

    A very short flight in the Shuttle with a wet end - 2EO BLUE contingency abort: Two main engines fail during stage 1, that's in the BLUE contingency region. Guidance immediately lofts the trajectory while the SRBs are still on to get some extra time. Directly after SRB separation, the Shuttle...
  4. Thorsten

    News The Space Shuttle for Flightgear 3.6

    An early morning low-inclination launch, it's still dark on the ground, but the bright SRB flame lights up the clouds... Separation, and the Shuttle proceeds onward into the dawn light, everything nominal so far... ... but we lose an engine. TAL abort is declared immediately, and the OMS...
  5. Thorsten

    News The Space Shuttle for Flightgear 3.6

    The last days I spent re-tuning the NO Y JET entry DAP which was too unstable to bear the FDM improvements (well, actually I endet up re-implementing it from scratch to fix a few design flaws). (For those who are not into the gory details - the Shuttle is a yaw unstable vehicle during entry...
  6. Thorsten

    Docked at the ISS for the first time!

    Well, simulators are excellent ways to test yourself in that respect if they have decent immersion. I've acquired a good understanding of many GA aircraft crashes that way. I used to do a lot of simulated mountain flying with a single prop plane. So sometimes the weather deteriorates, and I...
  7. Thorsten

    Docked at the ISS for the first time!

    Well, fast-forward my experience by a couple of years, and writing an autopilot which just docks any spacecraft for me becomes a trivial exercise:) (Actually, automated flight in space isn't that hard, it's a very quiet and predictable environment - designing an AP that can hover and land a...
  8. Thorsten

    Docked at the ISS for the first time!

    Congratulations - seems you are persistent! I guess it gets easier once one has the basic idea down. Also, in reality there's some help available. I remember taking an hour or so to dock Orbiter's stock Atlantis to ISS for the first time. My main problem was that the docking collar is...
  9. Thorsten

    News The Space Shuttle for Flightgear 3.6

    Here are also a few interior views to highlight the displays (GinGin has done lots of work in that area - also a big thanks to the SSU folks for letting us use their font for the displays): Early entry phase during night, some plasma builtup outside: A detail view of the DPS displays later...
  10. Thorsten

    Engines exhaust and light

    Well, I've always preferred what the human eye can see (my theme in simulation is immersion, I want the feeling of 'being there') - so in designing the ALS rendering framework for Flightgear, I've consistently banned effects like lense flare or motion blur which are really characteristic for...
  11. Thorsten

    Engines exhaust and light

    Been working on that quite a lot myself, so I have a well-developed set of ideas... In theory - yes. In practice, the only light source that creates appreciable scattering on air molecules however is the sun (that's sky-blue and the reason why shadows on a sunny day are not grey but bluish). A...
  12. Thorsten

    News The Space Shuttle for Flightgear 3.6

    Development has been paused due to a growing family (baby daughter...), but we're finally back on track with new collaborators on board and a new milestone in preparation. So - what's happening? * rework of the displays, the SM pages now include the limit sensing messages so values which are...
  13. Thorsten

    Numerical Epidemics

    I believe it's moderated - I'm not sure how strict the stance on off-topic posts is here. But as for me - I ask people politely using the keyword 'please' to return to the topic of the thread - which is math. That's all - doesn't really seem to warrant invoking something like freedom of...
  14. Thorsten

    Numerical Epidemics

    And the connection of that with the translation is? Do you really mean to imply that whether we translate one way or the other has any relevance for the accuracy of the mathematical model (which - by the way - I've been rather careful of not quantitatively applying to any problem involving real...
  15. Thorsten

    Numerical Epidemics

    Okay, at this point I'm starting to get confused - what exactly is this still about? We're in a thread about numerical simulation of epidemics to which the picture is a side issue. Realizing that the point of the picture may be lost to non-German speaking readers, I provided a translation -...
  16. Thorsten

    Numerical Epidemics

    I don't doubt the nuance is lost in my translation and I agree that it is there in German - I just doubt it was really ever meant to be there. I may of course be wrong here, but these people rarely have a sense of humour and are usually not into making ironic wordplays - they're convinced they...
  17. Thorsten

    Numerical Epidemics

    Actually I think what is meant by the writer is not so much the ironic twist but the theory that a disease isn't primarily caused by the virus but by pre-existing damage in the immune system which enables the virus to not only feel well (which doesn't per se imply any growth or multiplication)...
  18. Thorsten

    Numerical Epidemics

    For the non-German speaking readers - it's a so-called 'hygiene-demonstration' which is used to express a general dissatisfaction with the government, reality, the world, science... (I doubt anyone knows for sure) - it includes people who blame Bill Gates for the pandemic, or the Illuminati, or...
  19. Thorsten

    Numerical Epidemics

    I'm not entirely sure I'd see that as a difference to Germany...
  20. Thorsten

    Numerical Epidemics

    Well, if the model captures the relevant parts of reality and the math is solid, everyone should be able to arrive at the same findings It's not so much the total number of immune people that matters for the flat dynamics in the model - it's also where (*) they are - in proximity of the...
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