Search results

  1. Kozak

    Question Alternate history what-if

    "The Space Race" did not start with Sputnik and did not end with Apollos. The Soviet lunar program was cancelled mainly because America made it already. If USA would have been first with manned spaceflight and rested on its laurels, USSR would have been the first with Moon landing. And even if...
  2. Kozak

    Solving Systems of Vector Differential Equations

    You can use Lagrange's identity: Then, after rewriting them per component, you've got 3 differential equations with known quotients.
  3. Kozak

    News DeltagliderEX

    A note on the release: along with engines, I've worked on the aerodynamic model of the DGEx. While working on it, I've got a job as an aerodynamic engineer (having a physicist education), but I'm still far from the solution :P Life is fanciful.
  4. Kozak

    OHM Lunar base Aurora v1

    Great work.
  5. Kozak

    how to restart a fusion reactor in space?

    Hard to argue with someone who forgets what you've said a minute ago...
  6. Kozak

    how to restart a fusion reactor in space?

    This "huge" is 50-95% smaller than previous. http://en.wikipedia.org/wiki/Tupolev_Tu-119 Most small reactors weigh less than 10 tons, it's the surrounding machinery what makes them heavy - and this machinery is going to be present with combustion cycle also. What if a start attempt fails?..
  7. Kozak

    how to restart a fusion reactor in space?

    You're forgetting about: 1.Fusion reactor minimal energy scale. Even with "throttling" - unless having a constant heat dump (= engine exhaust), you'll have to have radiators of corresponding performance. That is, most likely you can't have it constantly running, that is, you'll have to have...
  8. Kozak

    how to restart a fusion reactor in space?

    Combustion engines produce a crap load of products, which require disposal, and need a crap load of fuel ;) Ideal power output from 1g of U-235 is 80MJ, while for H2 it's 143 kJ. The combustion products need either to be flushed (partly as a reaction mass), either be decomposed "back to...
  9. Kozak

    how to restart a fusion reactor in space?

    No link. You'll anyways not have the fusion reactor running all the way - there is minimal power scale for it to be in energy surplus. So, a fission reactor will be the main option.
  10. Kozak

    Project XR2 Ravenstar - Mk II

    I meant the type of sound, not alarm condition. In F-15 over-G is sounded by master alarm+voice assistant at 7G, but the airframe maintains integrity on up to 13-14G (famous low-alt pullout case). No, i'm not a pilot ;) But these things are familiar to me. Yeah, and the XR2 seems more like a...
  11. Kozak

    Project XR2 Ravenstar - Mk II

    What is "safety margin" if cockpit gauges allow you to use 100% (not 50%+50% safety backup) of stress resistance? ;) Such a safety margin is applied only to structural limits, but it's always there. 2 reasons for it: 1.Random factor compensation - If you have a gauge marked for actual stress...
  12. Kozak

    Project XR2 Ravenstar - Mk II

    A small note, but a major error: real life aerospace products always have a safety margin on all of the structural parameters. It usually lies in the range from 1.5-2 (military aircraft) to 3-5 (civil aircraft). So, XR2 breaking just when the needle is hitting the red mark looks at least strange.
  13. Kozak

    OHM ShuttlePB replacement mesh

    Well, maybe make them detachable? e.g. for "moon and back" ride.
  14. Kozak

    Humor Software installation in Linux is difficult

    "Did you know a WV Beetle seat can be installed in an Audi TT?" Linux.org.ru - the only place where you can find out such thing in a Debian setup thread.
  15. Kozak

    SDK Question Disable thruster group

    Either just disconnect thrusters from the appropriate groups, either controll them all yourself, not by Orbiter core.
  16. Kozak

    Speed of light: Escape velocity from universe?

    That someone needs to either cut down on coffee, or begin make acquaintances amongst science freaks.
  17. Kozak

    Orbiter Screenshot Thread

    DX7 still has some room to develop... Stall vortices on the TVC-DG, with no performance hit:
  18. Kozak

    C++ Question Unresolved External Symbol problem

    Either add realization for destructor (~Strelka()) in the .cpp or remove it from the .h file.
  19. Kozak

    Timekeeping on Mars or other worlds

    I'd do with time of day expressed hexadecimal in seconds, but what with the other people?.. Timekeeping is not a challene for engineers, it's everyday need.
  20. Kozak

    Timekeeping on Mars or other worlds

    Sergey Lukyanenko in his novel Spectrum addresses this problem in such a way: one hour may consist of variable amount of time (61 minute 40 seconds in this case), while a day is still 24 hours. To round the values up - the last hour in the day may lack or have redundant seconds and fraction of...
Back
Top