Further to previous extracts from CS 23 (previously JAR23) which correctly stated that the certifier only has to test to a minimum crosswind component of 0.2 of Vso, if they think that there is a higher
limiting figure they should put it in section 2 of the flight manual. I don't think I've ever seen one given.
V107 PARAGRAPH 23.233 DIRECTIONAL STABILITY AND CONTROL
a. Explanation
(1) Crosswind. This regulation establishes the minimum value of crosswind that must be
demonstrated. Since the minimum required value may be far less than the actual capability of the
aeroplane, higher values may be tested at the option of the applicant. The highest 90° crosswind
component tested satisfactorily should be put in the AFM as performance information. If the
demonstrated crosswind is considered limiting, it should be introduced into Section 2 of the AFM.