A U.S. Air Force F-15 Eagle flies over the skies of Central California. The aircraft is assigned to the 144th Fighter Wing, California Air National Guard, Fresno, Calif., Nov., 7, 2013. The 144th Fighter Wing says "farewell" to the F-16C Fighting Falcon after converting to the F-15 Eagle for the unit's guard mission. (U.S. Air Force photo by Master Sgt. Roy Santana/Released)
An F-15 from the 40th Flight Test Squadron soars over the base flightline after a training sortie at Eglin Air Force Base, Fla. The 40th FTS is responsible for developmental flight testing for F-15s, F-16s and A-10s for the 96th Test Wing. (U.S. Air Force photo/Samuel King Jr.)
A U.S. Air Force F-15 Eagle and an F-16C Fighting Falcon fly over the skies of Fresno, Calif. Both aircraft are assigned to the 144th Fighter Wing, California Air National Guard, Fresno, Calif., Nov., 7, 2013. The 144th Fighter Wing says "farewell" to the F-16C Fighting Falcon after converting to the F-15 Eagle for the unit's guard mission. (U.S. Air Force photo by Master Sgt. Roy Santana/Released)
A U.S. Air Force F-15 Eagle flies over the skies of Central California. The aircraft is assigned to the 144th Fighter Wing, California Air National Guard, Fresno, Calif., Nov., 7, 2013. The 144th Fighter Wing says "farewell" to the F-16C Fighting Falcon after converting to the F-15 Eagle for the unit's guard mission. (U.S. Air Force photo by Master Sgt. Roy Santana/Released)
A U.S. Air Force F-15 Eagle flies over Yosemite National Park and the granite rock formation named Half Dome. The aircraft is assigned to the 144th Fighter Wing, California Air National Guard, Fresno, Calif., Nov., 7, 2013. The 144th Fighter Wing says "farewell" to the F-16C Fighting Falcon after converting to the F-15 Eagle for the unit's guard mission. (U.S. Air Force photo by Master Sgt. Roy Santana/Released)
A U.S Air Force F-15 Eagle flies over Fresno, Calif. The aircraft is assigned to the 144th Fighter Wing, California Air National Guard, Fresno, Calif., Nov. 7, 2013. The 144th Fighter Wing says "farewell" to the F-16C Fighting Falcon after converting to the F-15 Eagle for the unit's guard mission. (U.S. Air Force photo by Master Sgt. Roy Santana/Released)
A U.S. Air Force F-15 Eagle approaches the Fresno Yosemite International Airport. The aircraft is assigned to the 144th Fighter Wing, California Air National Guard, Fresno, Calif., Nov. 7, 2013. The 144th Fighter Wing says "farewell" to the F-16C Fighting Falcon after converting to the F-15 Eagle for the unit's guard mission. (U.S. Air Force photo by Master Sgt. Roy Santana/Released)
An F-15E Strike Eagle assigned to Seymour Johnson Air Force Base, N.C., receives fuel from a KC-135R Stratotanker during Exercise RAZOR TALON, Nov. 15, 2013. The joint-service exercise was established by the 4th Fighter Wing in March 2011 to provide unique and cost-efficient training operations for units along the East Coast. (U.S. Air Force photo by Airman 1st Class Brittain Crolley)