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Kitspace

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  1. Kitspace
    I am talking about a situation where the indicated airspeed increases but not quickly enough and the true airspeed decreases because of the descent. I heard that such a situation can help pull subsonic planes out of a mach tuck dive. The second question here is that does such a dive situation count as aircraft acceleration or deceleration. If we look at the indicated airspeed we see it increase rapidly and think that the aircraft has not reached its current terminal velocity because the air drag increases but the aircraft still accelerates. But if we look at the true airspeed we see it decrease with altitude and think that terminal velocity is reached and the aircraft decelerates as the terminal velocity itself decreases with altitude. Does the aircraft actually reach terminal velocity and if yes then why the opposite statement is false and vice versa?
  2. Kitspace
    Also I think these kinds of discussions are even more interesting in the context of the game and how the things discussed are modeled. In here there are many people who like airplanes and things related to them and know a lot about aerodynamics. I think if any mod or game specific issues arise there will be no problem with these two existing alongside peacefully.
  3. Kitspace
    I guess higher density can decrease the speed of sound in liquids and solids because molecules have less opportunity to move and transmit less energy to each other? So if the speed of sound does not decrease with increasing altitude than what kind of parameter does? The distance that it can travel from the source? Also I heard of many aviation incidents with subsonic aircraft being caught in a mach tuck. That seems completely logical because an aircraft goes into a mach dive and accelerates quickly aggravating the effect and making the dive unrecoverable. But what about the case when the aircraft descends even more rapidly than it accelerates and while the indicated airspeed remains constant or increases at a certain rate the true airspeed reduces and combined with the descent reduces the mach number allowing the aircraft to regain control? Is such a scenario plausible in any way? Does that count as acceleration or deceleration of the aircraft? And what does the ability to recover depend upon? Not talking about the aircraft control authority but how to determine whether the mach number will increase or decrease in the dive?
  4. Kitspace
    Why toggle the toolbar with buttons if it can be pulled out and hidden by mousing over it?
  5. Kitspace
    Then what do you mean by saying how well it travels if not how fast and far it travels? Sound requires molecules to travel around. So the more time it takes for the molecules to travel between the collisions the slower the overall sound wave advances. And that time between the collisions in turn depends on how fast the molecules travel meaning the temperature and how many other molecules are around the meaning density. I do not quite get what is wrong with these statements? Then why the sound travels so much farther and faster in liquids and solids then in gases if not because of the greater density? Regarding the edge of space I did not ever claim that there is a specific boundary or anything no problem here. Sorry if I did not make it clear before.
  6. Kitspace
    That diagram shows that sound travels on the edge of space almost as well as it does at sea level. While sound waves do not exist in space at all. In case ideal gases would exist how would sound travel through them if their molecules do not interfere with each other by definition? How would they be different from space void in these terms? How can that possibly be that way?
  7. Kitspace
    Is the automatic of the new version installation already supported?
  8. Kitspace
    Then what prevents distribution of sound in space? Ideal gases do not exist in reality do they? For me the only sane explanation of the difference between sound speeds in the water in the air and in space is that sound requires a substance to travel in and as a consequense of that travels better in more dense substances.
  9. Kitspace
    Hello! I have a question about aerodynamics. Why do many people say that speed of sound and mach number at a certain speed depends only on the air temperature? Logically it depends on density as far as I know. And density in turn depends on both temperature and pressure. Otherwise how does one explain that the air temperature fluctates both ways as we rise through the atmosphere but the sound speed constantly decreases down to no sound distribution in space? Wikipedia also states that speed of sound does depend on pressure depth even in the water and liquids are far less compressible than gases. Is that just an another misconception or what? How does it currently work here in the game? Thank you.
  10. Kitspace
    What kind of airfoil is used for calculations in game?
  11. Kitspace
    Just noticed the new release is out. Amazing as always!
  12. Kitspace
    Why do all those misconceptions exist at all? And what of those does the mod consider here?
  13. Kitspace
    Why is there so much debate about which model of describing lift is better and why? The aerodynamic science understands wings good enough to design them. Why is there a problem with it at all and what is the official scientific version then?
  14. Kitspace
    Also a related thing which could possibly be an issue. The issue with jumping graphs when replacing parts appears fixed. But still even the most minor changes in the wing position results in strange abrupt changes in stalling angles. If this is intended like this why is it so? Also why does change in mass like fuel load affect pitch of the yellow graph even if the center of mass does not move?
  15. Kitspace
    If the blue overlay graph shows the aerodynamic pressure why not place the center of pressure marker at the point of the highest peak of the blue graph?
  16. Kitspace
    Ferram That issue is breaking flights and missions when it happens. So I think that everybody who have experienced it would be happy to hunt it down properly if it appeared more consistently. I personally believe that it could be related to the memory problems and consequently have similar reasons that make it occur. That is it just happens sometimes and does not seem to require any particular actions to cause. Just for me it happens most of the time after some reverting and repeating of test flights in the course of a few hours.
  17. Kitspace
    Wait is the no drag bug finally actually under control? That would be so extremely nice.
  18. Kitspace
    So with the airliners the center of mass range is not behind the wing root? Then where is it located lengthwise actually? It would be nice to visually understand where the mid aerodynamic chord of the wing actually begins to compare its relative position to the center of mass to the real life airplanes numbers? Also what kind of wing profile shape the mod actually uses for the physics calculations? Is it symmetric and how thick is it actually?
  19. Kitspace
    Nathan you are awesome and make awesome mods as usual!
  20. Kitspace
    I am not trying to build a tailless plane. There are delta wings fuselage wings and other stuff for that. I am trying to build a classic plane. Appropriate to call it an airliner style airframe? That is supposed to be a heavy subsonic transport plane. Not a spaceplane not even a supersonic one. Just need it to have a considerably good range which is not a problem with stock planet sizes and carry lots of cargo. But the question was not about that. I said that it is uncontrollable without stabilizer because then there is no sane place for elevators. It is certainly not impossible but not sane either. The question is that in theory a plane of such design would just tuck nose down without a stabilizer. In game however it has a balance point at a particular angle of attack and there is a stable slope on the line. It would not be that much of a problem actually but adding a proper stabilizer just increases the slope of the yellow line further and the pitch up authority becomes insufficient. Any way to figure out where the mid air chord is located to check against that? It feels like the center of gravity is way far forward. The trick is that it does not look very forward relative to the wing position at all. So that is what seems unrealistic. Thank you!
  21. Kitspace
    Is it somehow possible to have at least somewhat accurate calculations with the air breathing jet engines? I heard it is hard because of the thrust curves?
  22. Kitspace
    Is it possible that a classic subsonic airframe with a swept wing that is on the center of mass is stable without an actual stabilizer at the back of the plane? It of course has no control authority without a stabilizer but it is stable in that condition and adding one even if it is very very small just for the elevators placement makes the yellow pitch line on the graphs uncomfortably steep. It always happens this way with planes designed by me but does not seem very realistic.
  23. Kitspace
    By the way. What is the blue line on the transonic design overlay graph in the new dev build?
  24. Kitspace
    What is the blue line on the transonic design overlay graph in the new dev build? Thank you!
  25. Kitspace
    Ferram! There is a lot of people in this community including myself who do respect you and absolutely love your mod! I really like the mod and think that what it does for the game is awesome!
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