An aircraft is lifted by securing a fitting to the aircraft when the aircraft is at a lifting location, engaging the fitting with a crane hook, transmitting lifting load from the crane hook to the aircraft via the fitting and removing the fitting from the aircraft. A crane hook with a ball-and-socket connection is provided. The crane hook has an attachment link having a first pivot point attached to the hook forward of its centre of gravity and a second pivot point configured to be lifted by a crane. A biasing system applies a biasing force to the attachment link causing the attachment link to rotate about the first pivot point whereby the second pivot point moves towards the rear of the hook when the hook is unloaded.
FITTING, CRANE HOOK, AND CRANE HOOK ASSEMBLY
ORGANE DE FIXATION, CROCHET DE CHARGE ET ENSEMBLE CROCHET DE CHARGE
2015-06-02
Patent
Electronic Resource
English