DESCRIPTION:

The Self-Test Angle of Attack Transmitter (STAT-429) is an integrated Angle of Attack and digital electronics sensor.

BASIC FUNCTIONS:

The STAT 429 provides Local and Normalized Angle of Attack signals for indicators, multifunctional displays, and flight control systems.

The Self-Test capability of STAT-429 allows the slewing of the probe via an internal motor from stop to stop for preflight testing (Shake and Push Points). Self-Test is also used to detect a stuck probe condition. When mounted in the aircraft, the conical probe extends perpendicular to the aircraft fuselage in order to sense the angular direction of the local airstream.

The AoA transmitter is a null seeking internal vane instrument, which senses air stream direction by means of differential pressure from the conical probe. Angular position of the probe (driven by the airstream) identifies the value of Angle of Attack.

QUALIFICATION:

• DO178B Software
• DO160D Environment
• MIL704 Power
• BS3G100 Environment
• BS3G100 Power
• (Details upon request)

• Failure Annunciation
• Localized and Normal AoA
• ARINC 429 to customer’s system requirements.

• Mounting Calibration
• Left/Right Configuration
• Weight on Wheels
• Opposite Side AoA
• Pre-Flight Test Switch

• Angular Range +/- 45°
• Sensitivity: 0.1°
• Resolution 0.04°
• Calibrated Accuracy +/- 0.25°
• Mechanical Threshold: 0.1° at 90kts decreasing to 0.04° at 120kts

• Speed: to 1000kts
• Altitude: -1,500 to 51,000ft
• Temp: -40°C to +85°C

• Thermo sensor De-Icing and Anti-Icing: 28VDC, 200 Watts
• Case Heater: 28VDC, 50 Watts
• AoA Electronics: 28VDC, less than 14 Watts

• 3.5 lbs.

• MIL Qualified Units
• Calibration Software
• Configuration Software