I always that that one of the advantages of airplanes over gliders is
that an airplane engine masks those potentially-concerning noises that
virtually all airframes make as they deal with normal flight loads.

Vaughn


On 7/22/2019 6:39 AM, gregv wrote:
Hello, I fly a 1979 Nimbus 2 carbon, and since a few years I hear a cracking noise behind me. That noise occurs more often after a few hours of flight,

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