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AMC1 31TGB.71(c) Function and installation

ED Decision 2013/011/R

An instrument, in the classical sense, houses the sensor and the indicator (e.g. altimeter). However, it should be noted that for tethered gas balloons the sensor and the indicating display may be mounted far away from each other (e.g. sensor on the top; display in the gondola or at the winch). Hence, the word ‘instrument’ may not necessarily mean an integrated system.

The 'most appropriate place' for the instruments required by subparagraph CS 31TGB.71(c)(2) and (c)(3) shall be established in view of accuracy for measuring the values.