it was the process of retraction alone that did the actual shortening.
Is this another item that Airbus used for the A330/340? I can't remember the exact arrangement for Concorde, but the 330 uses a clever lever arrangement at the top of the leg. Requires regular lubrication too or
.
As we're on landing gear.
Why was the sidestay a telescopic affair? Most aircraft use a hinged geometric lock arrangement. More weight saving or down to available space in the landing gear bay?