Soldiers from the 82nd Airborne, Fort Bragg, N.C., parachute from a C-17 Globemaster III during the 2008 "Wings Over Charleston" Air Expo at Charleston AFB April 26. More than 136,000 people visited the base during the one-day expo highlighting the Airmen and aircraft of the world's most dominant air, space and cyberspace Air Force. (U.S. Air Force photo/Senior Airman Nicholas Pilch)

Senior Airman Blair Dennis stands guard at the 2008 "Wings Over Charleston" Air Expo on Charleston AFB April 26. More than 136,000 people visited the base during the one-day expo highlighting the Airmen and aircraft of the world's most dominant air, space and cyberspace Air Force. Airman Dennis is from the 437th Security Forces Squadron. (U.S. Air Force photo/Senior Airman Nicholas Pilch)

Maj. Paul Moga, F-22 Raptor Demonstration Team pilot performs a pass across air show center during the 2008 "Wings Over Charleston" Air Expo at Charleston AFB April 26. The biennial expo hosted by the 437th Airlift Wing allowed American's the opportunity to meet and greet Airmen and view civilian and military aircraft. (U.S. Air Force photo/Senior Airman Nicholas Pilch)

Ken Appezzato flies a Pitts S-2C performing aerobatics during the 2008 "Wings Over Charleston" Air Expo at Charleston AFB April 26. Visitors at the Air Expo were able to watch the Thunderbirds, C-17A Globemaster III, F-22 Raptor, F-15 Strike Eagle along with other military and civilian aircraft perform as well as static displays of aircraft. (U.S. Air Force photo/Senior Airman Nicholas Pilch)

Visitors enjoy the aerial demonstrations along with ground displays during the 2008 "Wings Over Charleston" Air Expo at Charleston AFB April 26. More than 136,000 people visited the base during the one-day expo highlighting the Airmen and aircraft of the world's most dominant air, space and cyberspace Air Force. (U.S. Air Force photo/Senior Airman Nicholas Pilch)

The Air Force Thunderbirds crew chiefs conclude their ground performance during the 2008 "Wings Over Charleston" Air Expo at Charleston AFB April 26. More than 136,000 people visited the base during the one-day expo highlighting the Airmen and aircraft of the world's most dominant air, space and cyberspace Air Force. (U.S. Air Force photo/Senior Airman Nicholas Pilch)

The Air Force Thunderbirds perform a pass across air show center during the 2008 "Wings Over Charleston" Air Expo at Charleston AFB April 26. More than 136,000 people visited the base during the one-day expo highlighting the Airmen and aircraft of the world's most dominant air, space and cyberspace Air Force. (U.S. Air Force photo/Senior Airman Nicholas Pilch)

The T-28 Warbird Aerobatic Formation Demonstration Team, the Trojan Horseman perform a pass across air show center during the 2008 "Wings Over Charleston" Air Expo at Charleston AFB April 26. More than 136,000 people visited the base during the one-day expo highlighting the Airmen and aircraft of the world's most dominant air, space and cyberspace Air Force. (U.S. Air Force photo/Cailynn Houlihan)

The Air Force Thunderbirds perform a pass across air show center during the 2008 "Wings Over Charleston" Air Expo at Charleston AFB April 26. More than 136,000 people visited the base during the one-day expo highlighting the Airmen and aircraft of the world's most dominant air, space and cyberspace Air Force. (U.S. Air Force photo/Master Sgt. Sean Houlihan)

The Air Force Thunderbirds perform a pass across air show center during the 2008 "Wings Over Charleston" Air Expo at Charleston AFB April 26. The biennial expo hosted by the 437th Airlift Wing allowed American's the opportunity to meet and greet Airmen and view civilian and military aircraft. (U.S. Air Force photo/Master Sgt. Sean Houlihan)