Safety Review of AOA Angle of Attack Why AOA Regardless of speed weight altitude or angle of bank an aircraft will stall at the same Angle of Attack AOA whereas indicated airspeed will vary ID: 909091
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BendixKing KLR 10 Lift Reserve Indicator
Safety Review of AOA – Angle of Attack
Slide2Why AOA?
Regardless of speed, weight, altitude or angle of bank, an aircraft will stall at the same Angle of Attack (AOA), whereas indicated airspeed will vary.
Pilot training has historically over-emphasized the “normal” 1g stall airspeed as the primary stall prevention method.
Inadvertent stalls are implicated in almost half of the GA approach and descent accidents, including 75% of fatal accidents.Having an onboard sensor which measures AOA is thus a significant safety advantage, particularly in high-AOA, low-speed flight regimes such as landing or maximum performance climbs.AOA is now used in most transport aircraft and almost all military aircraft to provide a clear and unambiguous depiction of the wing’s available “lift reserve”.The KLR 10 is the only instrument on the aircraft which can provide the pilot this information.Visual and audible cues alert the pilot to decaying lift reserve well in advance of traditional stall warning systems, allowing more timely corrective action.
Slide3KLR 10 Value = Safety
“Airspeed can mislead you, Angle of Attack (AOA) will always tell the truth”.
Indicated stall speed varies with the aircraft weight, angle of bank, etc.
“Stall speed” has historically been overemphasized in GA initial pilot training.AOA and airspeed mismanagement, account for the majority of preventable loss of control accidents in the pattern and on approach.AOA is one of the biggest opportunities to enhance GA safety.Bendix/King is on the forefront of making a critical safety technology available to GA.The KLR 10 Lift Reserve Indicator will warn you of low lift margin well in advance of the aerodynamic stall. The KLR 10 improves operational safety by increasing pilot awareness of remaining lift during phases of flight with high angles of attack such as takeoff and landing.Better awareness of the energy state of the aircraft will facilitate more consistent, stable approaches and smoother landings.
Slide4KLR 10 Value = Safety
FAA-approved for installation in certified aircraft
Standalone design does not require a PFD
Easy installation, replaces inspection plateLow-costLightweight, stylishInnovative, reliable, safety technologyAoA being promoted by industry and FAAB/K is on the forefront of this movementIndicator is compact (2”) and right in the pilot’s primary field of visionProvides aural and visual alertsIndependent of existing pitot-static systemBetter awareness of lift reserve for smoother landings2 year warrantyMSRP $1,600 for standard kit
Slide5KLR 10 Architecture
Cal Mode
Switch
Brightness
Button
Cal Set
(recessed)
Audio
Mute Switch
Mute
LED
Slide6KLR 10 Aural and Visual Alert States