USS Saratoga (CV-3) was the second aircraft carrier of the United States Navy, and the fifth ship to bear her name. She was commissioned one month earlier than her sister and class leader, Lexington, which is the third actually commissioned after Langley and Saratoga. As Saratoga was visually identical to Lexington, her funnel was painted with a large black vertical stripe to assist pilots in recognizing her. This identifying mark earned her the nickname "Stripe-Stacked Sara." Saratoga, Enterprise, and Ranger were the only fleet aircraft carriers of the United States Navy built before the war to survive and serve throughout American involvement in World War II.