Similar questions have been asked before, but in life-and-death questions like this, I want to be certain. This question is about airplane behavior close to the ground in normal and/or near slow flight.
I know that based on the angle of attack, a stall can occur at any airspeed. Alas, what should/does the IAS measure? Presumably, it is from a pitot tube extending from the wing, straight into the relevant wind that is to fly over the wing, so if the angle of attack becomes very high, presumably the IAS dives, too.
For a small 2-seater or 4-seater with a modern wing (like a Diamond or Cirrus or Flight Design), is an indicated airspeed of 10 knots above stall speed a sufficient guarantor for not stalling?
For example, in a slip near the ground, if my configured stall speed is 60, and I fly it so that my IAS steadily drops down to 70 in my uncoordinated slip (at which point I relax back pressure to keep IAS at 70), am I then assured that the airplane cannot enter a stall?