I was looking at the new 1974 Concorde pic in the database (left) when I noticed that the plane didn't have the caps over the wheels of its landing gear, as opposed to them being present on most pics (right). Anyone know what they do? You can see them clearly as bars running in front of the main landing gear, and as kind of lock placed on the nose gear.
So, what is it, and why do earlier pics don't have 'em? Thanks.
Photo © Michael Hall
Photo © Gerard isaacson