Complement Your Panel with a Certified 12-In-1 Display.
Transform your panel without sacrificing simplicity. AV-20-S is FAA Approved.
Installed in 1966 Cessna 182 below DG. We bough it as a backup for the AI and turn coordinator. So many features for such a small device and price.
This unit is compatible with C307PS, part # 11-04603.
Please see the NORSEE PDF document on the web page. This refers to the approval of the AV-20S as a secondary or non-essential to the required equipment.
Angle of attack is determined by comparing aircraft pitch to the actual flight path angle through the air. This is equivalent to the angle at which the wing is intercepting the body of air surrounding the aircraft - exactly the same as a probe based AoA system. Pitch is determined by a precision internal AHRS, and flight path angle is determined by a precision ADC (airspeed and vertical speed). The resulting angle is then augmented with G-Load, as determined by internal acceleration sensors. For example, during a climb, if the pitch angle is 10 degrees up, and the aircrafts flight path through the air (forward airspeed and vertical speed) is also 10 degrees up, the equivalent AoA is 0 Degrees. However, if the flight path angle through the air is only 7 degrees, then the equivalent AoA is positive 3 degrees as the wing is no longer able to maintain full lift. Therefore, no dedicated AoA probe is required - only internal inertial and pressure sensors (8 in total). Connection to the aircraft's pitot static system is required.
This does require connections to your pitot static system, however it is standalone and can be used as a backup.
The AV-20, and AV-30 certified, are only certified for Class 1, and Class 2 aircraft. Aircraft under 6000lbs.