Salyut-7 is the last space station in the project called "Salyut“"for the Soviet Union?.It once stop working for some problems of some devices.It turned into a fridge and never send messages to the ground.Then they use the spacecraft Salyuz T-13 to resuce it and succeed.It's really a brave choise to dock the space station what out of control by hand at that time.Today I replica them in Simpleplanes,I hope you can enjoy the sence of that time.Throttle to lift them up.VTOL can turn the solar of the space station,Trim can join the station and the craft together(Don't pull up too hard!)and you can try the none-gyro mode by turning off the AG8 to dock,it can bring you a similar sence what like the situation in history.