SAE AS439-1991
STALL WARNING INSTRUMENT (Turbine Powered Subsonic Aircraft)

Standard No.

SAE AS439-1991

Release Date

1991

Published By

Society of Automotive Engineers (SAE)

Status

Be replaced 2002-01

Replace By

SAE AS439A-2001

Latest

SAE AS439A-2008

Scope

This standard covers stall warning instruments to provide positive warning to the pilot of an impending stall. Stall, as defined for the purpose of this standard, is the minimum steady flight speed at which the airplane is controllable.

SAE AS439-1991 history

• 2008 SAE AS439A-2008 Stall Warning Instrument (Turbine Powered Subsonic Aircraft)
• 2001 SAE AS439A-2001 Stall Warning Instrument (Turbine Powered Subsonic Aircraft)
• 1991 SAE AS439-1991 STALL WARNING INSTRUMENT (Turbine Powered Subsonic Aircraft)
• 1967 SAE AS439-1967 Stall Warning Instrument (Turbine Powered Subsonic Aircraft)
• 1941 SAE AS439-7-1941 AS439 Pipe Clamp, Self-Bonding. (Typical Assembly)