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APM/Stallwarning Plus
The Airfoil Performance Monitor (APM) is a stallwarning technology that detects an airfoil stall before it
happens. The following short video clip demonstrates APM's capabilities.
Why does APM exist?
Current stallwarning systems and ice detection systems do not:
- account for the contamination of the wing,
- give information during the take off roll,
- don't work for high-speed stalls,
- don't work for measuring a tail stall,
- cannot predict aerodynamic effect of contamination,
- determine the extent of icing.
Most importantly, current stall warning systems are not stopping accidents involving icing.
How APM works
APM can be installed on any airfoil on an aircraft, including the tail. APM measures the airflow over
the wing, which reveals how well the wing is working. As a wing becomes contaminated, the APM will
measure the changing airflow and lift generated by the wing. APM will alert the crew if the airflow
degrades below a configurable threshold, giving the crew time to correct a potential stall before it happens.
What APM can do:
- determine how severe contamination is on an airfoil and measures what is actually happening on
the lifting surface,
- works with all types of contamination,
- gives a consistent indication,
- give information during the take off roll, in-flight icing, and in the mach buffet,
- work during high-speed stalls,
- can be installed on a tail to protect against tail stalls,
- predicts the aerodynamic effect of contamination.
Contact us for more information.
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An APM sensor.
APM sensors can be installed on any airfoil.