For smaller aircraft like Cessnas, the demonstrated crosswind component is something like 12 knots but they can land up to 20 to 25 knots. For bigger jets, such as the Boeing 737 and 777, what is the maximum crosswind component?
This site says for the:
- 737-200, crosswind limit is 31 knots;
- for the 737-300 thru -500, 35 knots;
- for the 737-600 thru -900, 36 knots; and
- for the 737-600 thru -900 with winglets, 33 knots.
During the type certification process, the FAA requires the manufacturer to demonstrate that its airplane can be controlled in 90° crosswinds up to 20% of VS0.