The Hurricane is a particularly interesting aircraft. It played a larger part in the Battle of Britain than its much more famous sibling the Supermarine Spitfire, and in may ways it represents a transition aircraft between the biplane fighters of the 1930s and the monoplanes that followed.
Look at this picture of a Hawker Nimrod and imagine it with an enclosed cockpit and no top wing.
The structure of the Hurricane is is definitely of the biplane era, and an old biplane at that. Notice how the tubular fuselage frame is bolted together with plates rather than being welded.
