This U-1 was assigned to VX-6 in Antarctica and participated in Operation Deep Freeze II and III. After returning to the U.S., it was assigned to the US Navy Test Pilot School at NAS Patuxent River, where it was redesignated NU-1B. Its last assignment was NAS Pensacola, attached to the Naval Air Training Command for general utility use. To the museum in 1975 in flyable condition. Heavily damaged by Hurricane Ivan in 2004, it has been restored and now is on display inside the Hangar Bay One building.