Included is the AV-20-S (with internal backup battery), two 1/4″ quick connect fittings, mounting screws, and wire harness. The harness has all interconnect pins pre-loaded with individually labeled wires.
OAT probe is NOT included and must be purchased separately. The AV-20-S is compatible with the industry standard Davtron Analog probe, C307PS. If the OAT probe is not connected, OAT, DALT and TAS will not be displayed.)
Q: What is the part number and price of the optional OAT probe please?
This unit is compatible with C307PS, part # 11-04603.
Q: Can I use the AV-20S to replace my legacy turn and slip indicator?
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.
Q: How is "Probeless" Angle Of Attack Determined?
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.
Q: Can I use this AV-20S as a back up to my standard vacuum instruments, is it stand alone?
This does require connections to your pitot static system, however it is standalone and can be used as a backup.