I would watch the copyright on Boeing stuff, their pretty hot on what is deemed their intellectual property.

Graham

For the stearman, these documents were published by the air corps, not by Boeing. They are in all cases in public domain (>50 years from publication).

Regarding copyright for more recent documents, I contacted several constructors more than 2 months ago now (Piper,cessna,EADS,Boeing,Diamond,etc) and get a yes or no answer from them.

It seems there is a tolerance from them for non profit diffusion (see http://www.smartcockpit.com).

If I receive a request to remove a document, this is done within same day.

Benoit