Sigma Tek, Inc.

Sigma Tek manufactures and distribute aviation instruments, accessories and control panels to the worldwide aviation industry.

  • (800) 876-5272
    (316) 775-6373
  • (316) 775-1416
  • requestinfo@sigmatek.com
  • 1001 Industrial Rd.
    Augusta, KS 67010
    United States

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Showing results: 1 - 15 of 27 items found.

  • Standard Airspeeds

    Sigma Tek, Inc.

    These airspeed indicators have unrestrained movements.These instruments are actuated by ram air and ambient atmospheric pressure obtained from the aircraft pitot and static pressure systems. A moveable pointer and a fixed dial indicate airspeed with the zero index at the 12 o??lock position. Temperature compensation is internal and there is no external zero adjustment. Pointer damping is internally adjustable.

  • Airspeeds

    Sigma Tek, Inc.

    The speed of an aircraft relative to the air.

  • 5000B-series Attitude Gyroscopes With Warning Flag

    Sigma Tek, Inc.

    This gyro is a variation of our popular 5000B air-driven attitude gyro. It includes a warning flag that drops into view upon the loss of vacuum. This can be a life saving feature during an emergency in a busy cockpit. The horizon mask moves to indicate climb, dive, and bank attitudes, which are portrayed against a fixed airplane. The fluid movements and intuitive presentation provide the pilot with a realistic sense of the aircraft’s attitude in relation to the natural horizon.

  • Autopilot Attitude Gyroscopes

    5000E/L-series - Sigma Tek, Inc.

    The 5000E air-driven attitude gyro is another variation of our standard 5000B model. It includes inductive pickoffs that generate the signals necessaryto drive an autopilot. The intuitive display has a moving horizon mask that indicates the position of the aircraft’s wings in relation to the natural horizon. This attitude information is passed along to the autopilot system.

  • Standard Attitude Gyroscopes

    5000B-series - Sigma Tek, Inc.

    The 5000B is an air-driven gyro that has a pictorial horizon mask and fixed airplane. The mask moves to indicate climb, dive, and bank. Bank and pitch attitudes are displayed so that the pilot’s sensing of the gyro indication is the same as the interpretation of the relation between the wings of the aircraft and the natural horizon during visual flight.

  • Cageable Attitude Gyroscopes

    5000M-series - Sigma Tek, Inc.

    The 5000M is an air-driven gyro that has a pictorial horizon mask and fixed airplane. The mask moves to indicate climb, dive, and bank. Bank and pitch attitudes are displayed so that the pilot’s sensing of the gyro indication is the same as the interpretation of the relation between the wings of the aircraft and the natural horizon during visual flight.

  • ARINC-style Attitude Gyroscopes

    1U367-series - Sigma Tek, Inc.

    The 1U367 has a pictorial horizon mask and a fixed airplane. The mask moves to indicate climb, dive, and bank. Bank and pitch attitudes are diaplayed so that the pilot's sensing of the gyro's horizon indication is the same as the interpretation of the relationship between the wings of the aircraft and the natural horizon during visual flight.

  • Altitude Gyroscopes

    Sigma Tek, Inc.

    A device that uses Earth's gravity to help determine orientation.

  • Restrained Airspeeds

    Sigma Tek, Inc.

    These airspeed indicators have restrained movements.These instruments are actuated by ram air and ambient atmospheric pressure obtained from the aircraft pitot and static pressure systems. A moveable pointer and a fixed dial indicate airspeed with the zero index at the 12 o’clock position. Temperature compensation is internal and there is no external zero adjustment. Pointer damping is internally adjustable.

  • True Airspeeds

    Sigma Tek, Inc.

    These true speed indicators are differential pressure indicators that measure the difference between static and total pressure produced by ram air from the pitot. The indicated airspeed can be corrected for changes in altitude by turning the knob to align the outside air temperature with the altitude. The moveable airspeed scale will then show the actual, or true, airspeed.

  • Standard Directional Gyroscopes

    4000B-series - Sigma Tek, Inc.

    The 4000B is our standard air-driven directional gyro. As the aircraft turns left or right, gears on the sensing unit and dial shaft translate this rotation into rotation of the instrument’s vertical dial. Left turns produce clockwise dial rotation and right turns produce counter-clockwise rotation. The gyro is controlled by a heading selector knob located on the lower left of the instrument. Pressing and turning the knob first disengages the dial shaft and then resets the dial to a new heading, which results in a new course indication. Releasing the selector knob re-engages the dial shaft. The on-course position of the pointer is always at the top of the azimuth circle (0° on the dial with the aircraft headed north).

  • Autopilot Directional Gyroscopes

    4000C/D-series - Sigma Tek, Inc.

    The 4000C/D is an air-driven directional gyro with A.C. autopilot pickoffs. Left turns produce clockwise dial rotation and right turns produce counter-clockwise rotation. Two knobs control the gyro. The left knob is used to cage the unit, and the right knob is used to select the instrument’s heading. To change course, the right selector knob is pressed and turned to disengage the dial shaft and set the pointer to a new heading. Releasing the selector knob re-engages the pointer with the dial shaft. As the aircraft turns onto a new course, the pointer returns to its original position. The on-course position of the pointer is always at the top of the azimuth circle (0° on the dial with the aircraft headed north).

  • XYZ Bootstrap Directional Gyroscopes

    4000H-series - Sigma Tek, Inc.

    Sigma Tek's Directional Gyro with heading synchro output provides a cost effective link to "bootstrap" other instruments requiring heading information for: display orientation to aircraft heading, heading stabilization functions, and other navigational calculations and/or solutions. Specific applications include: Argus Moving Map Display®, L-3 Avionics Stormscope®, and Insight Strike Finder®.

  • 4000B ARINC-style Directional Gyroscopes

    Sigma Tek, Inc.

    This instrument was developed for those pilots that prefer the distinct, professional look of an ARINC-styled cockpit. It is identical to the standard 4000B model differing mainly in aesthetics. Besides its distinct bezel and airplane, the display graphics and colors differentiate it from the standard model. A heading reminder bug is available as an option.

  • Heading Reference Directional Gyroscopes

    4000HR-series - Sigma Tek, Inc.

    The 4000HR air-driven directional gyro offers some of the best features of our other popular models.  It inherited all of the functionality and reliability of the industry standard 4000B upon which it’s based, and it picked up a heading reference bug from the 4000C autopilot model.

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