High frequencies

SPANGDAHLEM AIR BASE, Germany -- Airman 1st Class Rocky Weinman uses an oscilloscope that measures video frequencies using a time versus voltage format here Sept. 2. Airman Weinman is a radar maintenance technician from the 52nd Communications Squadron. (U.S. Air Force photo by Airman 1st Class Joshua E. Coleman)

Center's 'chicken gun' helps shuttle return to flight

ARNOLD AIR FORCE BASE, Tenn. -- Larry Phipps loads a foam projectile into the 86-foot-long rectangular barrel used to conduct testis for the space shuttle return-to-flight program. (Courtesy photo)

Ground pounders

OPERATION ENDURING FREEDOM (AFPN) -- Air Force heavy equipment operators from the 823rd Red Horse Squadron compact gravel while building a taxiway at a forward-deployed location. Squadron airmen are working around-the-clock to build a taxiway and support ramps more than a mile long to increase capacity for heavy aircraft. (U.S. Air Force photo by Staff Sgt. Matthew Hannen)

Dropsonde

MACDILL AIR FORCE BASE, Fla. -- This dropsonde is one of the key tools National Oceanic Atmospheric Administration officials use to measure temperature, humidity, and most importantly, barometric pressure inside a hurricane. The crew of the WP-3D Orion, can drop as many as 60 dropsondes during a flight from here. (U.S. Air Force photo by Staff Sgt. Randy Redman)

Firefighting history

HOLLOMAN AIR FORCE BASE, N.M. -- Larry Daniels, a Holloman firefighter, cleans out the O-6 Cardox fire crash truck after it was donated by a local firefighter's union. The truck sat for 30 years and was infested by rodents and covered in sand. Firefighters here restored the vehicle and donated it to the military firefighter's heritage museum at Goodfellow Air Force Base, Texas. (Courtesy photo)

Academy stamp unveiled

U.S. AIR FORCE ACADEMY, Colo. -- The commemorative 37-cent stamp honors the U.S. Air Force Academy's 50 years of service to the nation. It was unveiled at a ceremony here April 1 by U.S. Postal Service officials. (Courtesy graphic)