International Towing Tank Conference (ITTC), "ITTC – Recommended Procedures
                           and Guidelines; Preparation, Conduct and Analysis of Speed/Power Trial,"
                           International Towing Tank Conference (ITTC), 7.5-04-01-01.1, 2017. 
                     
                     
                     
                     Annotation: ITCC provides no guidance for wind speeds above an
                           altitude above 300 m. However, it is assumed in this guideline to be constant
                           above 300 m altitude.