By Norman PolmarAuthor, Ships and Aircraft of the U.S. Fleet
A Successful Runner-Up
The Glenn L. Martin Company's P4M Mercator ranked behind the Lockheed P2V Neptune as a maritime patrol aircraft. 1 Still, the Mercator had a successful, decade-long career as a U.S. Navy spyplane.
This content is only accessible by current members. Please login to view the full content.
Not a Member yet? Learn more about the exclusive benefits you'll receive!
