Kaiser’s Yard Launched 50 Aircraft Carriers From April 1943 to May 1944. Newport News Cannot Copy That Calendar: USS Casablanca went into the Columbia River on April 5, 1943. First Lady Eleanor Roosevelt sponsored the ship at Kaiser Shipbuilding in Vancouver, Washington. The Navy’s history office records the launch, the Navy’s acquisition on July 8, and commissioning on July 15, the same day she was reclassified CVE-55. Fourteen months later, on…