[[File:H41993.jpg|left|thumb|Photo NH 41993 courtesy of the Naval History & Heritage Command.]]
<div style="text-align: justify;"><span style="color:#00008B">S-2 while on sea trials in 1919, prior to commissioning. S-2's bow planes retracted into the superstructure horizontally, the EB design had the bow planes retracting at an angle. Trials showed that she had the tendency to burrow into the waves due to a lack of buoyancy forward. S-2's bow would be soon modified with an additional bow buoyancy tank, giving her a distinctive humped appearance. Her chariot style bridge fairwater has not yet been added. S-2 does not have a deck gun installed in this photo. She would later have a 4"/50 caliber Mk 9 gun installed forward, requiring the installation of a large deck sponson around the gun.</span>
[[V-4|See more V-4 photos]]
[[File:Red bar sub.jpg]]
=== <big>V-5/Narwhal and V-6/Nautilus (Cruiser Submarines)</big> ===
[[File:H41993.jpg|left|thumb|Photo NH 41993 courtesy of the Naval History & Heritage Command.]]
<div style="text-align: justify;"><span style="color:#00008B">S-2 while on sea trials in 1919, prior to commissioning. S-2's bow planes retracted into the superstructure horizontally, the EB design had the bow planes retracting at an angle. Trials showed that she had the tendency to burrow into the waves due to a lack of buoyancy forward. S-2's bow would be soon modified with an additional bow buoyancy tank, giving her a distinctive humped appearance. Her chariot style bridge fairwater has not yet been added. S-2 does not have a deck gun installed in this photo. She would later have a 4"/50 caliber Mk 9 gun installed forward, requiring the installation of a large deck sponson around the gun.</span>
[[Dolphin|See more Dolphin photos]]
[[File:Red bar sub.jpg]]
=== <big>Cachalot and Cuttlefish (Fleet Submarines)</big> ===
Photo NH 41993 courtesy of the Naval History & Heritage Command.
S-2 while on sea trials in 1919, prior to commissioning. S-2's bow planes retracted into the superstructure horizontally, the EB design had the bow planes retracting at an angle. Trials showed that she had the tendency to burrow into the waves due to a lack of buoyancy forward. S-2's bow would be soon modified with an additional bow buoyancy tank, giving her a distinctive humped appearance. Her chariot style bridge fairwater has not yet been added. S-2 does not have a deck gun installed in this photo. She would later have a 4"/50 caliber Mk 9 gun installed forward, requiring the installation of a large deck sponson around the gun.
Photo NH 41993 courtesy of the Naval History & Heritage Command.
S-2 while on sea trials in 1919, prior to commissioning. S-2's bow planes retracted into the superstructure horizontally, the EB design had the bow planes retracting at an angle. Trials showed that she had the tendency to burrow into the waves due to a lack of buoyancy forward. S-2's bow would be soon modified with an additional bow buoyancy tank, giving her a distinctive humped appearance. Her chariot style bridge fairwater has not yet been added. S-2 does not have a deck gun installed in this photo. She would later have a 4"/50 caliber Mk 9 gun installed forward, requiring the installation of a large deck sponson around the gun.
