The intelectual property aspect I think would protect the authors rights on other designs so we should be carefull
You are right about this thats why I only want to use stuff in the public domain, so don't send me plans unless they are freely available, and its probably best to tell me the source of the drawing so I can make my own judgement.
I don't think I am doing anything wrong here, this is something we do all the time in the auto industry. Indeed many companies make a living out of collating and selling this type of information.
All the best
Gareth
www.fourhulls.com