PULL POWER U.S. Navy sailors assigned to the gun drill team of the USS Constitution demonstrate historic drills using a 24-pound naval long gun in Charlestown, Mass., July 5, 2009. The display is part of Boston Navy Week, one of 21 Navy Weeks planned across America in 2009. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 861163-F-GTD72-726.jpg Photo Gallery