In an online forum, a professional pilot wondered whether he might be incorrectly controlling the aircraft when he performed a slip on final approach because the airspeed always increased, not decreased as he’d been taught. Slips in transport aircraft are sometimes restricted or even prohibited, making it hard for pilots to know how to handle them when they are required.
Reports about the 2009 Air France Flight 447 accident released last summer by the French safety board (BEA) said the three experienced Airbus A330 pilots were unable to recognize they were operating at a too high angle of attack to sustain flight.
The European Aviation Safety Agency (EASA) is continuing its search for a lightweight and affordable low-speed indication and warning device for use in the civil helicopter market. The agency launched the tender in October, citing the need for accurate speed measurement and the poor performance of current pitot tubes.