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Patrol Yacht Photo Archive

USC&GS Hydrographer (MSS 19)
ex-USS Hydrographer (AGS 2)

Call sign:
Nan - Charlie - Charlie - Xray

ex-USS Hydrographer (PY 30)

Call sign:
Nan - Baker - Victor - Sugar

Hydrographer served both the Coast and Geodetic Survey and the U. S. Navy

Patrol Yacht:

  • The second Hydrographer was built in 1928 by Spear Engine Works, Norfolk, VA
  • Classified as a Patrol Yacht and designated PY-30
  • Operated by the Coast and Geodetic Survey as a Survey Ship
  • Acquired by the Navy 4 April 1942
  • Commissioned USS Hydrographer (AGS 2), 20 May 1942 at Mobile, AL
  • Decommissioned 1 July 1946 at Norfolk and returned to the Coast and Geodetic Survey
  • Reclassified as a Medium Survey Ship, MSS-19
  • Decommissioned in 1967
  • Fate unknown.


  • Displacement 1,044 t.
  • Length 164' 11"
  • Beam 31' 6"
  • Draft 11' 6"
  • Speed 10 kts.
  • Complement 92
  • Armament: Two 3"/50 dual purpose gun mounts and two twin 20mm mounts
  • Propulsion: One 650shp diesel-electric drive engine, one shaft.
    Click on thumbnail
    for full size image
    Size Image Description Source
    USC&GS Hydrographer
    Hydrographer 19k

    Hydrographer - One versed in the science of determining and making known the conditions of navigable waters, charting coasts, and surveying rivers

    Tommy Trampp
    Photo added 20 November 2020
    Hydrographer 211k NOAA website
    Hydrographer 296k
    USS Hydrographer (AGS 2)
    Hydrographer 211k c. 1942
    U. S. Navy photo NH 82199
    Naval History and Heritage Command
    Hydrographer 211k 8 March 1943
    Kodiak, Alaska
    National Archives photo 80-G-79639
    USC&GS Hydrographer (MSS 19)
    Hydrographer 296k
    Hydrographer 296k
    Hydrographer 296k

    Commanding Officers
    01CDR William M. Scaife, USC&GS20 May 1942 - 31 January 1945
    02CDR William M. Gibson, USC&GS31 January 1945 - 1 July 1946
    Courtesy Joe Radigan

    View the Hydrographer (AGS 2)
    DANFS History entry located on the Naval History and Heritage Command Website
    Back to the Main Photo Index Back to the Patrol Craft/Gunboat/Submarine Chaser Index Back to the Patrol Yacht (PY) Photo Index Back to the Auxiliary Ship Index Back to the Survey Ship (AGS) Photo Index

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    This page created by Gary P. Priolo and maintained by Joe Radigan
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