USS Coronado (LCS-4)

170603-N-PD309-113 The littoral combat ship USS Coronado (LCS 4) during exercise CARAT in Thailand .JPG
170603-N-PD309-113 GULF OF THAILAND (June 3, 2017) The littoral combat ship USS Coronado (LCS 4) steams ahead during a division tactics exercise in support of Cooperation Afloat Readiness and Training (CARAT) Thailand. CARAT is a series of Pacific Command-sponsored, U.S Pacific Fleet-led bilateral exercises held annually in South and Southeast Asia to strengthen relationships and enhance force readiness. CARAT exercise events cover a broad range of naval skill areas and disciplines including surface, undersea, air, and amphibious warfare; maritime security operations; riverine, jungle, and explosive ordnance disposal operations; combat construction; diving and salvage; search and rescue; maritime patrol and reconnaissance aviation; maritime domain awareness; military law, public affairs and military medicine; and humanitarian assistance and disaster response. (U.S. Navy photo by Mass Communication Specialist 3rd Class Deven Leigh Ellis/Released)

US Navy 130823-N-EW716-001 USS Coronado conducts at-sea acceptance trials.jpg
GULF OF MEXICO (Aug. 23, 2013) The future USS Coronado (LCS 4) conducts at-sea acceptance trials in the Gulf of Mexico. Acceptance trials are the last significant milestone before delivery of the ship to the U.S. Navy, which is planned for later this fall. (U.S. Navy photo courtesy of Austal USA/Released)

Naval jack of the United States (2002–2019).svg
Naval jack of the United States from September 11, 2002 to June 4, 2019; designed in the late 19th century. The flag consists of a rattlesnake superimposed across 13 alternating red and white stripes with the motto, "Don't Tread On Me" (without apostrophe).

First Navy Jack of the United States as (supposedly) used by the Continental Navy from October 13, 1775 through December 31, 1776. In 1980, the Secretary of the Navy directed the commissioned ship in active status having the longest total period in active status to display the rattlesnake jack in place of the union jack until decommissioned or transferred to inactive status. Since September 11, 2002, the flag has been flown by the United States Navy for the duration of the "Global War on Terrorism."

This image is based on an image at the World Flag Database, with the color Red from Image:Flag of the United States.svg.

For the previous and current 50-star flag (still used as a "government jack" in some cases), see File:US Naval Jack.svg.

Flag of the United States Navy.svg
The Flag of the United States Navy, as defined in s:Executive Order 10812 of April 24, 1959. The design is described there as:

The flag for the United States Navy is 4 feet 4 inches hoist by 5 feet 6 inches fly, of dark blue material, with yellow fringe, 2½ inches wide. In the center of the flag is a device 3 feet and 1 inch overall consisting of the inner pictorial portion of the seal of the Department of the Navy (with the exception that a continuation of the sea has been substituted for the land area), in its proper colors within a circular yellow rope edging, all 2 feet 6 inches in diameter above a yellow scroll inscribed "UNITED STATES NAVY" in dark blue letters.

The U.S. Navy flag is used for display purposes at ceremonies, parades, and other public functions where the U.S. Navy has an official presence, usually being carried by an honor guard on ceremonial occasions. It is not used for outdoor, fixed (permanent) purposes, and is not flown on Navy ships. Versions without fringe and different dimensions seem to be common, though it appears they are not technically the official U.S. Navy flag, as the executive order has not been amended.

Prior to 1959, the Navy Infantry Battalion flag was used to represent the U.S. Navy.

For more information, see the Navy's flag history page, SeaFlags, Flags of the World, U.S. Navy document NTP 13(B) [1], section 1710, and Navy regulation OPNAVINST 10520.1 (which replaced a similar SECNAVINST 10520.2D regulation from 1974).