<a style="color:#000" href="https://www.tugraz.at/institute/ittm">Institute of Thermal Turbomachinery and Machine Dynamics</a></br><a href="https://www.tugraz.at">Graz University of Technology</a> https://aeroenginesafety.tugraz.at/ 2026-04-15T23:18:52+00:00 https://aeroenginesafety.tugraz.at/ https://aeroenginesafety.tugraz.at/lib/exe/fetch.php?media=wiki:logo.png text/html 2020-06-25T20:43:28+00:00 Anonymous (anonymous@undisclosed.example.com) https://aeroenginesafety.tugraz.at/doku.php?id=5:51:51&rev=1593117808&do=diff 5.1 Weather Weather-related factors - 5.1.1 Rain - 5.1.2 Hail - 5.1.3 Lightning - 5.1.4 Ice - 5.1.5 Atmospheric Temperatures - 5.1.6 Turbulence Turbine engines are affected by a large variety of weather-related factors. This is the reason for the redundancy requirements that have been determined by different institutions and authorities. The ICAO prescribes the following in Annex 6, 5.1.2: