Originally Posted by
zzuf
Luckily both "slip" and "skid" are just sideslip
No. They are not. They are opposites.
An airplane has a stick. And rudder pedals. They move independently of each other. If the stick is to the left and the rudder to the right, that's a slip. The ball will be well to the inside of the turn.
If the stick is to the left and you have too much left rudder, that's a skid. The ball will be to the outside of the turn.
In both cases "step on the ball" will correct the situation.
Regardless of what prefix you put in front of slip, sideslip, forward slip, etc. it's the same "crossed control" combination. Only the purpose has changed. I can barely remember which is which, but I can slip to lose altitude, and I can slip to correct for a cross wind (prefer to crab, but that's a different topic).
"The dreaded stall spin on the base to final turn" is a skid. Skids are inherently more dangerous as the inside wing stalls first.
Terry