Brief Description: Wiring Advanced Systems Angle of Attack Indicator
I started wiring the Advanced Systems, Inc. Angle of Attack (AOA) Indicator. The system consists of an AOA Central Processing Unit, upper and lower Wing Pitot and Static Systems, and a 31 LED Light-Bar Indicator. Wing pressure ports are used to measure the local wing lift. These ports are located on the upper and lower surface of the aircraft's wing at very specific locations. Additionally, the AOA Instrument needs to know if you are in the cruise or landing configuration.
The instrument senses when the aircraft is in one of two configurations using a simple micro switch connected to the flap movement mechanism: 1. The cruise or clean configuration when the flaps are up. 2. The landing configuration when the flaps are not in the up position or in the down position for landing setting.
For in-between flap configuration settings, the flap switch is configured so that the AOA CPU uses the most conservative database for computing AOA. The computer issues an aural warning stating flaps are deployed and it will flash and give another aural warning when you are nearing a stall. It also provides best approach configurations and best cruise.
