The ACS redefined slow flight away from continuous stall horn activation - here's what the current standard requires and where students consistently lose points.
The current ACS requires slow flight without sustained stall warning activation - a key change from the old PTS standard that still catches checkride candidates off guard.
The 2017 Airman Certification Standards changed the slow flight standard from minimum controllable airspeed to just above stall warning activation - a distinction that still catches students off guard.
The ACS requires slow flight without any stall warning activation - a change from the old PTS standard that catches many students off guard on checkride day.
The FAA redefined slow flight in 2017 - onset of stall warning, not buffet. Here's what changed, why it matters, and how to fly it to the current standard.
The 2016 ACS requires the stall warning to stay active throughout slow flight - here's the aerodynamics behind that standard and how to meet it on a checkride.