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Air Data Displays
Thommen is a leading manufacturer of Air Data Systems and aircraft instruments used worldwide on a full range aircraft types from helicopters to corporate turbine aircraft and commercial airliners.
- Solid-state pressure sensors
- RVSM compliant
- Static Source Error Correction
- Integrated Altitude Alerter
- English/metric scale setting
- Standby/Normal operation
- Baro Push-to-Reset function
- Push-to-Test and continuous Built-In-Test
- BIT Failure memory
- Display with LCD / stepper motor drive pointer
- ARINC 408, 3ATI, with IMI ring pointers
- RS232 Maintenance Interface
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ALTIMETERS
Thommen manufactures following types of Altimeters:
2-inch & 3-inch Counter Drum Pointer Altimeters
- Primarily used as a standby instrument in civil and military aircraft.
- Barometric instruments
- Counter-pointer display actuated by a high performance meachanism
2-inch & 3-inch Counter Drum Pointer Altimeters with Baro-output
- Encoding altimeters totally self contained without electrical power
- Two or three pointer display actuated by high performance mechanism
- Users benefit from a high level of precision and reliability
Electronic Standby Altimeter
- Highly reliable and indicates barometric altitude with high accuracy.
- Direct replacement for mechanical standby altimeters
- Measures static pressure with a proven integrated solid state pressure sensor
- Displays the computed altitude by an analog pointer and a sunlight readable digital LCD.
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AIR DATA COMPUTERS
Thommen is a leading manufacturer of Air Data Computers used worldwide on a full range aircraft types from helicopters to corporate turbine aircraft and commercial airliners.
- Type AC32 RVSM is compliant providing upto 2 x 16 SSEC curves which makes it unique among all the Air Data computers in the world.
- Type AC32 measures barometric altitude, airspeed and temperature in the atmosphere with integrased vibrating cylinder pressure sensors with high accuracy and stability for both static and pitot ports.
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AIRSPEED INDICATORS
The Airspeed Indicators (ASI) measure the speed of the aircraft in knots (KTS), kilometer per hours (km/h) or MPH.
The THOMMEN Airspeed Indicators are installed in lightweight aluminum ARINC, and Square or Round plastic cases.
The 3-Inch Airspeed Indicators are installed as primary or standby instruments in civil and military aircraft.
VERTICAL SPEED INDICATORS
The Vertical Speed Indicators (VSI) measure the rate of climb of the aircraft in terms of feet per minute (FPM) or meters per second (m/s). It is used to maintain level flight and to determinse the rate of climb or descent.
- Internal setting mark
- Scale range in Km/h or knots
- NVIS compatible
- MIL
- TSO-C46a
- Vmo or Mmo Switch
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MACH AIRSPEED INDICATORS
The 2-Inch and 3-Inch MACH Airspeed Indicators (MAI) are pneumatically operated instruments deriving indicated airspeed and MACH information from the pitot-static sources.
The MAI are totally self contained, requiring no electrical power to drive the mechanism. A pointer indicates airspeed against a fixed dial with numerals and graduations.A disk indicates MACH.
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