MaverickWoe

Oh ! I think I get it. Wouldn't "g" be an expression of the gravity in the rotating frame of reference ? so that all coriolis, centripetal and Euler Forces would be inserted in this fake gravity coefficient ? So you have m * angularVelocity² x radiusToAxis for the the centrifugal force you already mentioned RCgothic but also other terms like: coriolis : m * 2 * angularVelocity x speed Euler : m * angularAcceleration x radiusToAxis So all the silly variations I see must be Coriolis and Euler expressed into g, hence why g is a vector and may not point toward the center of Kerbin in the game. Eureka Nice

you might find this graph interesting. I compared the theoretical g computation given g = KerbinGravParameter / (KerbinRadius + Altitude)² with the one the game was outputing directly. And I absolutely cannot understand why there is such a complex difference... Why would the gravity in the game be affected my the behaviour of the rocket ?! Oh, thanks for doing the computation again. I thought the days were 24h on Kerbin. Thanks for double checking. Though, it still doesn't explain the weird graph above. Why would apparent gravity change depending on the direction of fall or the thrust ?

Hey all I'm working with a student on KSP as a sandbox for controls because it's a rather complete simulator. Though, I just discovered that the game was outputting a gravity of roughly 9.75 m²/s near the launch pad ( 5 - 6 meters above sea level). Whereas, when I calculate the gravity at the same location, using the game's data of Kerbin, I will find roughly 9.80 m²/s. Does anyone know why the gravity is lower than expected. It doesn't look like much but I need to be precise for something. I could be reducing the mass or increasing the radius in the formula but I'm not sure why there is this offset. g = KerbinGravParameter / (KerbinRadius + Altitude)² Those are directly extracted from the Kerbin celestial object within the game, so I assume they are supposedly accurate. I initially thought that this could maybe come from the centripetal acceleration but a quick computation shows me it would only be 0.0031 m²/s with Kerbin's dimensions, far from the 0.05 I'm looking for. I also checked if it could be an influence of the Mun. But similarly, it would only account for 0.0004 m²/s in KSP. Any idea would be nice to hear or if you know anything about that in the game.

Hey all Just wanted to share the reproduction of SpaceX's Starship mission, including the bellyflop. Just in time after the first succesful mission of yesterday night. Congrats SpaceX !

Hi I've been successfully adjusting lift coefficient of wings while running a mod I've been working on by using ModuleControlSurface.deflectionLiftCoeff = float and I'm now looking to change the drag of the part in the same way. Up to now, I fail to find any property that works the same way and, maybe I'm wrong, but it looks like I would need to update all the drag cubes associated with the part ? Am I correct ? Did anyone previously modified the drag in a mod and could confirm the method ? The drag cubes look a bit painful to use and I was hoping I missed an obvious property. Thanks for the help

Ok, finally found how to udpate the aero forces: the property "deflection" needs to be updated too as well as forcing aero to recompute by setting alwaysRecomputeLift = true; ctrlSurface.localRotation only affects the visuals of the part

Ah, damnit. Despite the wing being at the right angle. It seems that the aero forces are not following / not taking in account the modified angle. I wonder what I forgot. Do you know if I need to reimplement something so that the angle is taken into consideration ? I thought the rotation would suffice

Thanks wasml. Sorry, I didn't see your notification. I couldn't get access to the control surface when using the part. It was not accessible from outside. So, I think I found out and it's much more indirect than I thought. I have to implement a new class inheriting from ModuleControlSurface. By doing so, you can overwrite the method CtrlSurfaceUpdate(Vector3 velocity) inside which you have access to the vector ctrlSurface.localRotation At the game loading, you have to replace all Parts that implement ModuleControlSurface so that they implement this new class instead and now I can now change the angle of the wings at will with my own laws. So indirect, but finally found out.

Hi guys. Just bumping up the question. Do you know how to control the angles of a wing, similarly to how you can control the thrust of each engine individually ? Thanks

Still very confused on this. I tried changing the winglet's ".part.orgRot.z" or ".angleOfAttack" None of them seem to have an effect on the part. I'm wondering if it's possible at all...

Hey people. First, sorry for the wing vocabulary, I'm not entirely sure I'm using it right. I'd like to understand if it is possible to take control, through the API, of the angle of a controllable air surface without using the Flight control Pitch / Yaw / Roll inputs. Is there a way to directly set an angle on any controllable flap/wing ? I see that I can fetch the result of the drag and lift vectors (liftForce & dragForce of ModuleLiftingSurface) which is great, but can't see any input. (It is not the deploy feature I think) I'm also slightly confused between the class ModuleLiftingSurface, ModuleControlSurface and ModuleAeroSurface and not sure if one of those three allows to do what I'm looking for. Anyone is familiar with what I'm looking for ?

Thanks Hebaru You were right, I was focusing on the wrong problem, the update of the array was broken. My bad I'll also look into the DialogGUI if its easier on the CPU, thanks for pointing it out.

Hi all. I'm new in the KSP modding and Unity hooks too and I was hoping you could help on something I cannot understand. I'm trying to build a layout window using GUILayout class on which I want to draw a simple graph / curve. public void OnGUI() { // Register the window. Notice the 3rd parameter logWindowPos = GUILayout.Window(GetType().FullName.GetHashCode(), logWindowPos, WindowGUI, "Landing Control", GUILayout.Width(logWindowPos.width), GUILayout.Height(logWindowPos.height)); } protected void WindowGUI(int windowID) { GUILayout.BeginVertical(); GUILayout.Box(Texture2D.blackTexture, GUILayout.Width(200), GUILayout.Height(200)); Rect graphBoxRect = GUILayoutUtility.GetLastRect(); GUILayout.EndVertical(); GUI.DragWindow(); if (Event.current.type == EventType.Repaint) { if (graphData.Length > 1) for (int i = 0; i < graphData.Length - 1; i++) { Drawing.DrawLine( new Vector2(graphBoxRect.xMin + graphData[i].x , graphBoxRect.yMax - graphData[i].y ), new Vector2(graphBoxRect.xMin + graphData[i + 1].x , graphBoxRect.yMax - graphData[i + 1].y ), Color.white, 2, true); } } } It draws what I want and I can see the white lines as expected. The window is dragable etc. Though the thing that eludes me is that I don't know how to force a redraw / repaint of the window when I add a dot to the curve. How do you force a redraw of a GUILayout window ? I suppose clicking on a toggle button in it may call a repaint but what if there is no control and you want it to refresh from outside ? I've been unable to find a method or a variable to set to let the engine know. Support greatly appreciated, thanks.

Thanks ! I took the option of removing all these ships as I could live without them. Old satellites, not the important outposts that I wanted to keep. Thanks for your help !

I removed manually,using KSPSaveFileEditor, all these vessels from my save file: Titan Sattelite, Jumbo sattelite, Kerbal surveyor, docker, Skylab, Geostat satellite And I kept the other ones. mimizing the loss. It works Still wonder what happened to these vessels...

It's often the vessel I cannot choose on the Space center list but sometimes all of them are not selectionable too. Here you go : http://awalrave.free.fr/woe.sfs If that is really a problem, I wouldn't mind you remove this vessel completely.

Thanks for your time.The log attached seems to be a bit different from the one I looked 2 days ago though the problem seems still present and the Space center list of vessels is still buggy as hell: http://awalrave.free.fr/KSP.log It is indeed an older saved game from 1.0.4 I guess that I might have also resaved under 1.0.5 afterwards but yeah, definitely related to that as the game runs fine when I don't have any vessel loaded from a saved game. Though I'd like to see if there is a way to recuperate my previous vessel because it took me quite some time to deploy some of them in the whole system, like a space station on EVE or a mun station

Hi all ! Since 1.0.5, the game runs 2.5s for 1s in Kerbal time. I also can't really pick the vessels in the space center, like the game was crashing but without really telling it. I've been trying a few things : - Removing all mods, which leads to no space crafts active anymore = no problem - Adding back mods without adding the saved active space crafts = no problem - Checking the log when space crafts and mods are active brings to this error every tenth of second : [EXC 21:33:13.571] NullReferenceException: Object reference not set to an instance of an object KnowledgeBase.UpdateVesselInfoList (.Vessel v) KnowledgeBase.FixedUpdate () The problem is that I can t erase one by one the space crafts as the space center seems bugged :-( I'm pretty sure some of them are corrupted since 1.0.5 but I don't know how to find them list of Mods installed + trying to remove all corresponding ships : Station science (for 1.0.4) - Removed only all ships having this mod's parts but same problem Community resource pack Firespitter Core Karbonite - Removed only all ships having this mod's parts (and it s dependancies) but same problem KAS - Removed only all ships having this mod's parts but same problem kOS infernal robotics MechJeb - Trying to remove all the ships of this mod leaves only 1 remaining and the game works fine, so not sure if related to the mod... Mission controller 2 - Removed only all ships having this mod's parts but same problem ScanSAT - Removed only all ships having this mod's parts but same problem StageRecovery USI Core, MKS, tools Kerbal alarm clock Module manager Help or suggestions appreciated !

Updated the 1st post with instructions, image, link to ship and script. Enjoy !

Thanks for the Welcome Word Red Dwarf ! I'll surely improve the post with your advice and more a bit later. Yeah, the wings are quite in front probably because the Center of Mass of the plane is a bit too but yeah it flies well even without auto-pilot so I guess that is Ok. The main problem for the take off are the gears on the very rear of the plane. I could probably activate a mode that retracts rear gears for take off but then the tail would hit the runway often. So I guess I'll leave the designa s mainly done for VTOL.

Hi all ! Since the last patch modified the thrust of turbines, I had to rework my very simple VTOL plane concept plane to a bigger one. I came with this MK3 version of it that takes-off, cruise and land with very simple interfaces up to around 4500m where there is no much space to do so. This is a very convenient plane to go and see Kerbin's anomalies or fetch some research points from specific areas as it got a rover with loads of instruments and a drill + refinery attached to it. Here is a demo on Youtube https://youtu.be/gtz2OaYXijk comments in French in the Vid, sorry ! I'm sure those VTOL lovers will like that project. Features: - Runway takeoff (bad) - runway landing (bad) - vertical takeoff - vertical landing - navigation with set heading and ground clearance. - Showing the landing target on the ground and adjustable through plane inputs. - Drill and Refinery - Deployable and recoverable rover loaded with sensors - Auto pilot Script including these features - Suggestion of fuel balance to optimize landing at the limit of the plane (4500m and higher) Runs with: - KSP 1.05 - kOS mod - MechJeb (but useless in fact) - Infernal Robotics Known issues: - A few governors can be tweaked better - Could be faster to land and takeoff - Would like to use the turbines to rotate the plane toward the desired heading on takeoff. - Yaw input from pilot disturbs everything despite being locked in the script (kOS issue ?) - No detection of landing, meaning you ll have to deactivate everything by yourself. Feedbacks and comments are welcome Instructions: open kOs in ring on the nose of the plane. Type "Switch to 0. run auto." Use A and D (keys for Yaw) to modify heading. Use W ans S (keys for Pitch) to modify Ground clearance. Use Abort Button to land at the target. Use again A,D, Z and S to move the target to the exact landing location you want. Button 1 activates and deactivates all engines Button 3 deploys parachutes Button 4 deploys cockpit ladder and opens hatch Button 5 open Cargo hold, solar panels and all extra ladders Button 6 deploys drill (but you have to manually run it) script and plane here: http://awalrave.free.fr/AP_VErtixMK3_0.90.zip