The 55th Electronic Combat Group at Davis-Monthan AFB, Ariz., has sent its last Block 20 EC-130H Compass Call aircraft to a Waco, Tex., depot for upgrades to its avionics and mission systems. The upgrade effort for the Block 20 Compass Call aircraft began in 1996. Tail No. 989, which has flown during Desert Storm and Allied Force and current operations in Afghanistan and Iraq, will return to Davis-Monthan as a Block 35. (USAF photo release)
When the Air Force sets a new program baseline for the B-52 re-engining this fall, there will be “some” cost increase, because the project wasn't previously fully funded, and the Air Force has a better handle on actual supplier costs and knowledge from ground testing, program officials said.