The ribs you see are called the A ribs. There are also B's, C's, and D's. Total 14 A ribs, 6 B ribs, 12 C ribs and 2 D ribs. The differences are in lengths and areas routed out. A's and B's are the same length but different routed out areas to accommodate the wires that control the ailerons. C's are cut out like the A's but are shorter because those Ailerons are at the ends of them. D's are short but rounded off. These two D's are on the upper wing just above the pilot to allow vision up and forward of the aircraft.
More photos to come as parts are made. Just went over the blueprints and identified several other parts that need to be made.
Trivia question, what is considered the standard of wood for wooden aircraft?