Piper 28-181 Archer II.
Approach speed 66 knots.
Stall speed fully loaded 53 knots.
I usually do the base at 76 and downwind at 86... don't know why... but someone taught me to add 10 knots from the final back in the day.
I would do less than the 66 when approaching a short runway.... we have winglets installed, and the damn aircraft tends to float..... a lot..... if you're a bit too fast.