Pa-28 140
I flew this type frequently in the late 1960's with a visual RED LAMP stall warning indicator. On one occasion with 4 on board the stall warning lamp came on at take off just as I eased back on the column. I had no idea why so pushed the nose down running into the X area for an extra 5 knots and very gently eased back the column. This time OK but I did not attempt a normal rate of climb until some time later. Subsequently I was told I should have had TWO stages of flap down rather than just ONE. This time I survived to know better.
However I was surprised at how heavy and "lumpily" the aircarft flew with four up and for finals I set up the aircarft some way out and longer than normal to get a feeling for the sink rate.
Nevetheless I never experienced any problems with 3 up and even although the aircraft had the "squared wings" never had any problems handling the stall even under blind flying instruction. I lovely little aircarft.