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if you put two cars on the groud,then switch target by ] and[,the car will "jump". It happens in the space too,the "jump" will change the flight attitude. -------------- Are you chinese?If you wish ,i would describe the problem in CN, it may be understood easier.

Two ships fly side by side in the same orbit. When i switch target by pressing ]&[ ,they always lose balance because of a "sharking". I need to adjust attitude again and again.How to deal with it?

Well,I found it in manuver planner.

I build a rover for refuling.It only could connect with other vessles by claw.It is stupid and ugly.So Is there any mod with cardan joint?

I am interest in Breaking Groud DLC for new parts.But not sure after reading comments in steam.They say there are many problems in it. 1."Silent helicopter".No sound for new parts. 2.Some parts have only one side work when mirrored. 3.Should pay more efforts on the action groups for robotic parts than mod. 4.Taking too long to load DLC. Do these problems still exist?Anything I need to kown?

I did a experiment,builded a total symmetrical vessle without wheels and tail fin,lauched it, failed. Then I put the COT on the COM.It failed too.And even worse,it could't reach 2km. https://thumbsnap.com/f/LwX15oVt At last,I removed the wings. The first design got into 70km orbit smoothly.The second design reached 20km, then lost balance. It seems like the key point is wing.But,why?What can I do to deal with the wing?

I think you need this. https://thumbsnap.com/f/74BF87Fc

Thank you very much! I did it! https://thumbsnap.com/f/4pSD7NV3

Q1:The decoupler can't hold solid fuel booster. I used TT-38K to combine S2-17 solid boosters with Kerbodyne S3-14440 Tank.Then boosters run away alone.Is the force too huge? https://thumbsnap.com/f/gWXDGEoM https://thumbsnap.com/f/KyguLA5o Q2:Balance So I changed my mind,put shuttle on the top of rocket.But it became unstable because of aerodynamic force on the wings. https://thumbsnap.com/f/tBFxZxB1 https://thumbsnap.com/f/eyyiF2J6 How to make a shuttle stable? ---------------------------- With Rhomphaia's help,I didi it. Then I did a experiment.Builded a total symmetrical vessle without wheels and tail fin,lauched it, failed. I put the COT on the COM.It failed too.And even worse,it could't reach 2km. https://thumbsnap.com/f/LwX15oVt At last,I removed the wings. The first design got into 70km orbit smoothly.The second design reached 20km, then lost balance. It seems like the key point is wing.But,why?It is symmetrical. What can I do to deal with the aerodynamic force on the wing? ---------------------- Finally,I kown the key is Force Balance.What's i need is another Big-S Wing.The lower wing take force to balance the upper wing. THX for all. https://thumbsnap.com/f/FEagkSP9

Action group is useless.It only works before data collecting.It means nothing after experiment storage unit collects data. I put 3 Mestery Goo and 3 SC 9001 in my rover.When the data collection is done,all I can do is to stop the rover,let scientist getting out for EVA,and restore euqipments mannually one by one. I don't want to click the "resore" buttons so many times.Is there any simple method?

Thanks.Could you tell me what is the mod's name?

Ships always change their name after docking at stations.And stations will change name too.It makes me hard to find the certain ship.What can I do to deal with it?

Thank you very much.Now I get another problem. I was watching mining-work(x50 TIME).The drill would shutdown at ninght due to none electric charge, and would not restrart at the next day(Electric charge is full).So the drill just worked one day.How can I deal with it?Will it work correctly when I am't watching it?

Q1:I can not add drill/radiator on convert-250,but I can add it on convert-125.Is it a bug or not? Q2:How many drills(small or big?) should I need to feed convert-250? I don't know how to calculate the exact output.(eg.9% Minmus surface) Q3:I was watching mining-work(x50 TIME).The drill would shutdown at ninght due to none electric charge, and would not restrart at the next day (Electric charge is full) .So the drill just worked one day.How can I deal with it?Will it work correctly when I am't watching it?