dry dock in May 2015 for a scheduled restoration, before returning to sea. Constitution is berthed at Pier One of the former Charlestown Navy Yard, at the terminus of Boston's Freedom Trail. She is open to the public year-round. The privately run USS Constitution Museum is nearby, located in a restored shipyard building at the foot of Pier Two. Constitution typically makes at least one "turnaround cruise" each year, during which she is towed into Boston Harbor to perform underway demonstrations, including a gun drill; she then returns to her dock in the opposite direction to ensure that she weathers evenly. The "turnaround cruise" is open to the general public based on a "lottery draw" of interested persons each year. The Naval History and Heritage Command Detachment Boston is responsible for planning and performing her maintenance, repair, and restoration, keeping her as close as possible to her 1812 configuration. The detachment estimates that approximately 10–15 percent of the timber in Constitution contains original material installed during her initial construction period in the years 1795–1797. The Navy maintains Constitution Grove at Naval Surface Warfare Center Crane Division near Bloomington, Indiana to ensure a supply of mature white oak. In 2003, the special effects crew from the production of Master and Commander: The Far Side of the World spent several days using Constitution as a computer model for the fictional French frigate Acheron, using stem-to-stern digital image scans of "Old Ironsides". Lieutenant Commander John Scivier of the Royal Navy, commanding officer of , paid a visit to Constitution in November 2007, touring the local facilities with Commander William A. Bullard III. They discussed arranging an exchange program between the two ships. Constitution emerged from a three-year repair period in November 2010. During this time, the entire spar deck was stripped down to the support beams, and the decking overhead was replaced to restore its original curvature, allowing water to drain overboard and not remain standing on the deck. In addition to decking repairs, 50 hull planks and the main hatch were repaired or replaced. The restoration continued the focus toward keeping her appearance of 1812 by replacing her upper sides so that she now resembles what she looked like after her triumph over Guerriere, when she gained her nickname "Old Ironsides". The crew of Constitution under Commander Matt Bonner sailed Constitution under her own power on 19 August 2012, the anniversary of