Thanks for the autopilot.
Director controller/allow_spin_down -- interesting setting, but I never use it. But for my tasks it is even harmful. It is very annoying to turn it off constantly after each load of the save. It would be nice to add the state of this button to the save.
Flying to a given point is very useful. Unfortunately, Cruise Flight does not remember the entered coordinates, when saving and have to be entered again when loading.
Speed control after loading does not highlight the selected speed units, although it uses m/s.
When climbing to a given height, the pitch straightening does not occur smoothly. At first, it gradually decreases, but just before reaching level flight, there is a sharp increase in pitch and then its gradual decrease. Unfortunately, this jerk can significantly reduce the speed of the aircraft, which can take it out of the optimal speed range. As a result, the speed will begin to fall further due to insufficient engine thrust. I would like to get rid of this jerk.
If it is required to slightly (by 1-10 m/s) reduce the speed of the aircraft, the autopilot turns off the engine completely for a very short time. This causes the speed to decrease more than the set value. Maybe you should not turn off the engine completely when braking, but simply reduce its power so that it restores it faster. With significant speed reductions, it could also be useful to bring the engine power from zero not immediately, but gradually, so that they have time to warm up.
From time to time, when you fly at a given speed at a given altitude, there will be small beating of the thrust and pitch controls. Sometimes the beats are weak and affect only the last sign in the amount of fuel consumption by the engine, but there have been cases of fairly sweeping fluctuations. In most cases, you can quickly click on the pitch control key or turn on the PID controller in the Thrust controller window, but this does not always help.
Maybe it will be interesting:
Speed control can work with knots.
1 knot = 1 nautical mile / h
Historically, nautical mile was defined as the meridian arc length corresponding to one minute (1/60 of a degree) of latitude at the equator. Today the international nautical mile is defined as 1852 metres.
Kerbin radius = 600000m. Equator length = 3769911.18m. 1 minute of angle -> 174.5329m (3769911.18/(360*60)).
1 (Kerbin) knot = 0.048481 m/s (174.5329/3600).