Why use scale drawings?

There are some excellent factroy blueprint sets and not least for the Fw 190 including the later long nosed versions. They can be found here and come from various partners in the industry including Claus Colling at Flug Werk GmbH (the 1:1 aluminium replica) in Germany.

http://stores.ebay.com/Flug-archiv-20_Blueprint-Multi-CD_W0QQcolZ4QQdirZ1QQfsubZ13QQftidZ2QQsclZ1QQtZkm