March 5, 2014
By Dave Hirschman
BendixKing has received FAA approval to install KLR 10 Lift Reserve Indicators in Standard category aircraft, the company announced.
The indicators are designed to warn pilots when they are approaching the critical angle of attack (AOA) at which airplane wings stall, and help pilots fly with greater precision in the takeoff, approach, and landing phases.
“Airspeed alone is not a reliable parameter to show how much remaining lift a plane has in advance of an aerodynamic stall since this will vary with aircraft weight, angle of bank and other factors,” said Kevin Gould, president of BendixKing. “Because of this, AoA is a concept that has been embraced by both the FAA and the aviation industry. And with the new KLR 10, BendixKing is at the forefront of bringing advanced safety systems to the general aviation cockpit.”
The KLR 10 delivers angle of attack information through an intuitive, color-coded visual display that represents lift reserve in a compact indicator, with red indicating the wing is close to an aerodynamic stall. The KLR 10 also uses audible cues like “Check AoA” and “Caution, too slow” when it is connected through aircraft audio sources.
The KLR 10 has a retail price of $1,600 and is available for purchase via the BendixKing dealer network.
AOPA Pilot Senior Editor Dave Hirschman joined AOPA in 2008. He has an airline transport pilot certificate and instrument and multiengine flight instructor certificates. Dave flies vintage, historical, and Experimental airplanes and specializes in tailwheel and aerobatic instruction.
The widespread presence of angle-of-attack indicators in general aviation aircraft could reduce fatal loss-of-control accidents caused by inadvertent stalls, said the FAA.
Safe Flight has developed an angle-of-attack system that does much more than help pilots fly precise approaches and avoid stalls.
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