So that the mines do not detect it.
Probably oak, that is the traditional hard wood for the old wooden sailing ships.
USS Chief, MCM-14 http://www.navsource.org/archives/11/1214.htm
Seven have been or will be named after individual Chief Petty Officers. USS REEVES (DE 156) USS TOMICH (DE 242) USS HILL (DE 141) USS TRUETT (DE 1095) (FF 1095) USS MCFAUL (DDG 74) USS JOHN FINN (DDG 113) USS DELBERT BLACK (DDG 119) [currently being constructed and awaiting commission] One is named in honor of all Chief Petty Officers. USS CHIEF (MCM 14)
There are some instances when this would be done. The most notable instance is when the USS Arizona memorial half-masts the ensign out of reverence for those that died onboard during the attack on Pearl Harbor.
Any where from $35-$60.
everything
I think you made a mistake. The Uss Yorktown (CV-10) was an aircraft carrier that served from 1943 to 1970. The Uss Yorktown was actually CG-48 and was a cruiser. CG-28 was named Uss Mainwright.
The Uss constitution sailor is the name of a large ship. There are smaller ones made that can fit in a bottle and is been sold.
USN battleships were named after US states; such as the USS Arizona, USS California, USS Nevada, USS New York, USS Texas, USS Tennessee, USS Oklahoma, USS Alabama, USS South Dakota, USS Washington, USS Mississippi, USS West Virginia, USS Utah, etc.
there were 8 frigates on the American sife- the USS Constitution, the USS John Admas, the USS President, the USS United States, the USS Constellation, the USS Boston, The USS New York, and the USS Congress
To name a few: USS Bismarck Sea USS Lexington USS Yorktown USS Hornet USS Wasp USS Princeton USS Gambier Bay USS St. Lo USS Liscome Bay
Old Ironsides is the USS Constitution She is the oldest commissioned ship in the US Navy Fleet. She got the name "Old Ironsides" from the British when they saw that their cannon balls bounce off her hull that was made of Virginia oak. She was launched in 1797.