Author Topic: TeStaF - Technischer Standard Fliegeruhren: New standard for aviation watches  (Read 2636 times)

Offline STT1987

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Sinn in association with the University of Applied Sciences Aachen - Department of Aeronautics and Astronautics has come up with a new technical standard for mechanical analog aviation watches. A German standard for Flieger watches.

Google translation from the University website:
TeStaF - Technischer Standard Fliegeruhren

Original link: http://www.testaf.fh-aachen.de/

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Background:
The history of aviation is closely connected with the history of timekeeping. Equipped with special functions, supported by the arm "Pilot watches" the main timekeeper for the rapid development of aviation in the 20th Century. Even today, bracelet Pilot watch in a few historical aircraft's main instrument for measuring time, in other aircraft they serve, even in times of satellite time calculation, as secondary systems.

From the originally characterized by specific functional and technical requirements pilot watch but any notion has now become. Including both ordinary watches with more or less clear-cut design and technically sophisticated watches with classic fliegeruhr typical features, such as vacuum-proof glass seat taken. A clear definition, such as for diving watches (DIN 8306 / ISO 6425), did not exist for pilot watches so far.

To fill this gap have the flying laboratory of the Department of Aeronautics and Astronautics University of Applied Sciences Aachen and the SINN Uhren GmbH in Frankfurt in a joint project with the "Technical standard pilot's watches" (aka "TeStaF") was developed. Thus, a unique technical and functional requirements catalog is first presented, which determines what requirements must be met bracelet Pilot watch with analog time display in civilian flight operations under visual or instrument flight rules today.

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The requirements of TeStaF

Adherence to the "Technical Standards Pilot watches" (TeStaF) gives the user the assurance that the so-designated pilot watch:

  • complies with the relevant functional, technical, physical and normative requirements for timing devices in the different classes of aircraft;
  • allows the pilots to plan and carry out the time-dependent maneuvers required for the conduct of the flight, and in this way replace the aircraft in prescribed or existing facilities to measure time in full;
  • thereof by the physical stresses of the regular flight operations as well as unexpected disruptions in their functionality is not restricted, and it is easy and safe to use and read under all conditions;
  • not pose a risk for potential crew members, other instruments or the aircraft.

Overview of the requirements of the TeStaF (summary):

1 Functionality

    Required functions for visual and instrument flight
    Readability by day and night
    Ensure the operability
    Accuracy and power reserve

2 Resistance to external loads

    Absolute and cyclically varying ambient pressure
    Operating temperature range and rapid temperature changes
    Impact and safety, G-forces and vibrations
    Water tightness
    Resistance to flight operations typical liquids
    Effects of magnetic fields on the clock

3 Security and Compliance

    Effects of the magnetic signature of the clock on the Notkompass
    Avoid reflections (glare)
    Special shape
    Secure strap attachment

Sinn has a few new models up that compliant with the new TeStaF standards. Stowa has a new TeStaF T01 watch that coincidentally looks like a Sinn to me. Looks good though:


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