AMAZONAS (CF-11) class

 2 AMAZONAS-class RIVER GUNBOATS (PR)
      (U.S. river gunboat design)

 Name         Pendant    Commissioned    Status

 AMAZONAS     CF-11      1934            Active
   (ex-Peruvian CF-403)
 LORETO       CF-12      1934            Active
   (ex-Peruvian CF-404)

The vessels of this U.S.-built class are shallow-draft river gunboats. With the possible exception of the USS CONSTITUTION , these ships may be the oldest naval craft in service with any nation.

Both craft are in...