Majorjim! Posted October 11, 2014 Share Posted October 11, 2014 Hi all, I am working on my next release but I am having some issues with it. I can say, its a VTOL that (at present) is using a rear jet and four small rockets below for VTOL. I am also building it in the VAB. The surfaces are, Two of the smaller SP+ wings either side, another+ the new SP+ small surface as the tail.When I look at the COL it is facing directly forwards towards the nose of the aircraft not up.Does anyone know what could cause this?Thanks for reading this,MJ Link to comment Share on other sites More sharing options...
SkyRender Posted October 11, 2014 Share Posted October 11, 2014 Center of lift is not what you're looking for; you want center of thrust. Center of lift has to do with which direction your craft's natural air drag tends towards. Link to comment Share on other sites More sharing options...
Majorjim! Posted October 11, 2014 Author Share Posted October 11, 2014 (edited) Center of lift is not what you're looking for; you want center of thrust. Center of lift has to do with which direction your craft's natural air drag tends towards.Thanks for the reply but, huh? When I select the centre of lift tab the arrow is in the direction of travel not upward.That's not how it should be. Also, adding extra wings doesn't change it.. Edited October 11, 2014 by Majorjim Link to comment Share on other sites More sharing options...
Cmdr. Arn1e Posted October 11, 2014 Share Posted October 11, 2014 That does sound odd... as though the files for the new wings have installed incorrectly... are you using steam, website or launcher to update? Link to comment Share on other sites More sharing options...
Majorjim! Posted October 11, 2014 Author Share Posted October 11, 2014 That does sound odd... as though the files for the new wings have installed incorrectly... are you using steam, website or launcher to update?Using steam. Link to comment Share on other sites More sharing options...
Cmdr. Arn1e Posted October 11, 2014 Share Posted October 11, 2014 (edited) in that case, you could try verifying the integrity of the game cache - when KSP first updated for me, it somehow missed the flags and new plane parts that verifying fixed Edited October 11, 2014 by Cmdr. Arn1e Link to comment Share on other sites More sharing options...
Majorjim! Posted October 11, 2014 Author Share Posted October 11, 2014 in that case, you could try verifying the integrity of the game cache - when KSP first updated for me, it somehow missed the flags and some other important bit that verifying fixed Ok I will try that and report back, thanks. Link to comment Share on other sites More sharing options...
Epthelyn Posted October 11, 2014 Share Posted October 11, 2014 Center of lift is not what you're looking for; you want center of thrust. Center of lift has to do with which direction your craft's natural air drag tends towards.If it's a VTOL with 4 vertical engines, one horizontal engine and wings, neither of the indicators should be facing straight towards the nose; thrust would be diagonally upwards and forwards, and lift should be upwards.I have no idea what's going on, but can this be replicated on other vehicles, or is it just something that is affecting your current construction? Link to comment Share on other sites More sharing options...
Majorjim! Posted October 11, 2014 Author Share Posted October 11, 2014 If it's a VTOL with 4 vertical engines, one horizontal engine and wings, neither of the indicators should be facing straight towards the nose; thrust would be diagonally upwards and forwards, and lift should be upwards.I have no idea what's going on, but can this be replicated on other vehicles, or is it just something that is affecting your current construction?I removed the elevon 1s from the two small delta wings and the COL was just a blue ball. When I add the elevon 1s again to the rear of the wings the COL points to the nose of the aircraft.. Link to comment Share on other sites More sharing options...
Majorjim! Posted October 11, 2014 Author Share Posted October 11, 2014 in that case, you could try verifying the integrity of the game cache - when KSP first updated for me, it somehow missed the flags and new plane parts that verifying fixed Well what do you know, 8 files out of whack. Even after that though I still have the COL facing forwards.. When I open it in the SPH the same thing happens but the COL is now higher and further back!? WTF. Link to comment Share on other sites More sharing options...
Cmdr. Arn1e Posted October 11, 2014 Share Posted October 11, 2014 (edited) do you maybe still have the SaceplanePlus folder installed? that would cause some issue if you tried it out...EDIT: not to worry if you never used the parts as the mod...I tried a second pass of verify, but everything came back fine for me the second time... can't hurt to try it again Edited October 11, 2014 by Cmdr. Arn1e Link to comment Share on other sites More sharing options...
Majorjim! Posted October 11, 2014 Author Share Posted October 11, 2014 (edited) do you maybe still have the SaceplanePlus folder installed? that would cause some issue if you tried it out...No, I have no part mods. Never have. Ok, adding more surfaces doesnt change the COL arrow unless the plane is upsidedown in the VAB..There is something fishy going on. I think its a KSP bug. I don't think the .craft is corrupted its something to do with the new parts.. I could rebuild it but if you saw it you wouldn't want to either.. Not sure what to do from here. I will sleep on it and try again tomorrow. Edited October 11, 2014 by Majorjim Link to comment Share on other sites More sharing options...
Majorjim! Posted October 12, 2014 Author Share Posted October 12, 2014 OK I think I have either discovered a bug or my update was bugged. Could someone try this to confirm if its at my end? I put together a test plane in the VAB and the COL when using any wings is just a blue ball. When I add movable surfaces the COL faces forwards.Planes build in the SPH have a normal COL.Even if you transfer the craft from the VAB to the SPH the issue persists.Can someone test this for me? Link to comment Share on other sites More sharing options...
Majorjim! Posted October 12, 2014 Author Share Posted October 12, 2014 UPDATE, ok I fixed my plane by creating a subassembly of it and placing a core then the subasseblied plane and the COL is now normal.PHEW!But this does mean there is a bug either with my save or with the update in general.Building planes in the VAB causes the COL to be directed forwards. Link to comment Share on other sites More sharing options...
Majorjim! Posted October 12, 2014 Author Share Posted October 12, 2014 Thanks for moving this mods, But I have fixed my plane now and the VAB thing is known so this thread may be closed.MJ Link to comment Share on other sites More sharing options...
BDelacroix Posted October 12, 2014 Share Posted October 12, 2014 I have had instances where the lift vector (blue arrow) is just point off in some odd direction. Seems to occur when I put delta wings on rockets. They are symmetrical and all works anyway but that blue arrow just points off at 90 degrees anyway. Link to comment Share on other sites More sharing options...
Claw Posted October 13, 2014 Share Posted October 13, 2014 The arrow is showing like that because you are building in the VAB. The VAB editor assumes that whatever craft you are building will travel UP (like a rocket). So the lift vector is going to be all messed up since all of your wings are perpendicular to "up."So not a bug, but how the VAB is mechanized (for rockets).And closed, at the OP's request.Cheers,~Claw Link to comment Share on other sites More sharing options...
Recommended Posts