 The Bleriot XI had pivoting main gear legs, which passively allowed the main gear wheels to castor together about each of their vertical axes as a unit to allow small-angle crosswind landings, with bungee-cord loaded rigging members between the lower ends of the main wheel forks, to bring the wheels back to a "directly-ahead" orientation after touchdown.If the crosswind landing is not executed safely, the aircraft may experience wingstrike, where a wing hits the runway.The following guidelines are advised by Boeing for a crosswind landing.