An entry in the July 12 Daily Report confused the Air Force’s Advanced Engine Technology Program and Pratt & Whitney’s own F135 engine improvement program. Pratt’s Block 1 upgrade is expected to deliver a 7-10 percent increase in efficiency over the existing F135, while Block 2, building on Block 1 and incorporating technology from the AETP, will up the efficiency to a total 25 percent better fuel burn over the existing F135. We have corrected the original entry.
A new report from the Government Accountability Office calls for the Pentagon’s Chief Technology Officer to have budget certification authority over the military services’ research and development accounts—a move the services say would add a burdensome and unnecessary layer of bureaucracy.

