The website for the National Naval Aviation Museum has a feature under “Education” called “History Up Close”. There are a series of articles in that section on a wide range of historical topics. If you like Naval Aviation I recommend you browse through the section.
They added an article on the N3N in September of 2014 (I just found it…). The article does not have a lot of new information but it’s a good summary. Photos will be familiar to those who have been through our historical photos (or on the WIX N3N threads). Link to the article here:
http://www.navalaviationmuseum.org/history-up-close/n3n-original-yellow-peril/
The N3N Blog - it's "Not a Stearman" 