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THOMMEN AC32 Air Data Computer Datasheet

THOMMEN AC32 Air Data Computer Datasheet

THOMMEN AC32 Air Data Computer Datasheet

Product catalog summary
Introduction
THOMMEN is a renowned manufacturer of Air Data Systems and aircraft instruments, utilized globally across various aircraft types, including helicopters, corporate turbine aircraft, and commercial airliners. A notable innovation is the AC32 Digital Air Data Computer, which integrates vibrating cylinder pressure sensors for high accuracy and stability in pitot and static ports.
Specifications
The AC32 complies with the 1000 ft. vertical separation minimums for RVSM airspace and offers up to 2x16 SSEC curves, making it unique among Air Data Computers. It exceeds FAA Technical Standard Order (TSO) requirements for accuracy and transmits computed air-data parameters via a configurable ARINC 429 interface data bus with two transmit and receive channels.
Compatibility and Features
The AC32 is compatible with multiple platforms, including TAWS, ACAS/TCAS, EGPWS, or FMS systems, and supports enhanced safety infrastructure capabilities of Transponders. It offers an optional ICAO encoded altitude output and operates on standard 28 VDC with low power consumption of less than 7 watts. The device includes an extensive Built-In-Test (BIT) for safe operation and is lightweight at 2.0 lb (910 grams).
General Parameters
  • Pressure Altitude: -1,000 to +53,000 feet
  • Baro Corrected Altitude: -1,000 to +53,000 feet
  • Vertical Speed: 0 to 20,000 ft/min
  • Indicated Airspeed (IAS): 0/40 to 450 knots
  • Computed Airspeed (CAS): 0/40 to 450 knots
  • True Airspeed (TAS): 0/100 to 599 knots
  • Max. Allowable Airspeed (VMO): 150 to 450 knots
  • MACH Number: 0.200 to 0.999 MACH
  • Total Air Temperature (TAT): -60 to +99°C
  • Static Air Temperature (SAT): -99 to +60°C
  • Baro Setting (QNH): 20.67 to 31.00 inHg / 700 to 1,050 mbar
  • AOA: -60° to +60° degree
Technical Characteristics
  • Features: Vibrating Cylinder Pressure Sensors, RVSM Compliant, Static Source Error Correction, Continuous Built-In-Test, BIT Failure Memory, RS232 Maintenance Interface
  • Signal Inputs: Primary Power 28 VDC (< 7 Watts), Emergency Power 28 VDC, ARINC 429 Serial Data Bus, TAT Probe, AOA Sensor Input
  • Signal Outputs: Encoded Altitude ICAO, Warning Flag Valid 28 VDC, ARINC 429 Serial Data Bus
  • Operating Specifications: Altitude Scale Error varies with altitude, FAA TSO-C106, FAA TSO-C88a, RTCA/DO-178B Level A, RTCA/DO-160D, Operating Temperature -55 to 70 °C, Storage Temperature -55 to 85 °C, Reliability: MTBF 21,000 hours (est.)
Conclusion
The THOMMEN AC32 Digital Air Data Computer is a versatile and highly accurate device suitable for modern avionic systems, offering extensive compatibility and configurability without altering system architecture.
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Catalog excerpts

THOMMEN AC32 Air Data Computer Datasheet-1

DIGITAL AIR DATA COMPUTER TYPE AC32 RVSM WITH AOA INPUT (OPTIONAL! THOMMEN is a leading manufacturer of Air Data Systems and aircraft instruments that are used worldwide on many aircraft types. These include helicopters, corporate turbine aircraft and commercial airliners. A recent innovation introduced the AC32 Digital Air Data Computer to the Aviation market. The AC32 has integrated vibrating cylinder pressure sensors that give very high degree of accuracy and stability for pitot and static ports. The AC32 easily complies with the 1000 ft. vertical separation-minimums required for aircraft to operate in RVSM airspace. In fact, it providing up to 2x16 SSEC curves which makes it quite unique among all Air Data Computers in the market today. The highly commended THOMMEN AC32 Digital Air Data Computer exceeds the FAA Technical Standard Order (TSO! requirements for accuracy. The computed air-data parameters are transmitted via the configurable ARINC 429 interface data bus. This has two ARINC 429 transmit and receive-channels where you can adjust the baro-setting. The AC32 meets the requirements for multiple platforms. This includes TAWS, ACAS/TCAS, EGPWS or FMS systems. It also supports the Air Data for enhanced safety infrastructure capabilities of Transponders. Additionally, an ICAO encoded altitude-output is also available as an option. The AC32 uses the aircraft standard 28 VDC to guarantee a low consumption of less than 7 watts. The Thommen AC32 also has an extensive Built-In-Test (BIT) that guarantees safe operation. The low weight of only 2.0 lb (910 grams) is another plus point that optimizes it for use in different state-of-the-art avionic systems. You can easily configure the AC32 for different applications. The AC32 has hosting capabilities that can supply data to other nextgeneration equipment. It can do all of this without changing the system architecture. Pressure Altitude Baro Corrected Altitude Vertical Speed Indicated Airspeed IAS Computed Airspeed CAS True Airspeed TAS Max. Allowable Airspeed VMO MACH Number Total Air Temperature TAT Static Air Temperature SAT THOMMEN FOR THE AMERICAN AND CANADIAN MARKET Email: [email protected] Phone: +1 972 757 4791 [email protected] www.thommen.aero

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THOMMEN AC32 Air Data Computer Datasheet-2

yrHOMhlhv AIRCRAFT EQUIPMENT CHARACTERISTICS FEATURES: INTERNAL BLOCK DIAGRAM AC32 Digital Air Data Computer SIGNAL INPUTS: SIGNAL OUTPUTS: TAT Probe AOA Sensor Input 2 Transmit Channels 2 Receive Channels Mainlenance IF ICAO Encoded OUT Primary Power Secondary Power Test/Reset Warning Flag Valid OUT Power Supply OPERATING SPECIFICATIONS: DATA COMMUNICATION BLOCK DIAGRAM Pilot Co-pilot MECHANICAL DRAWING THOMMEN AIRCRAFT EQUIPMENT AG is a certified company: EASA Part-21 G + O | EASA Part-145 | AS / EN 9100 Specifications are subject to change without prior notice. Thommen 08/15 Part No. 70.794.143...

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