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.
F-35 Dropped Inert Nukes in Flight Tests
Nov. 18, 2025
An Air Force F-35A successfully carried and dropped inert B61-12 nuclear gravity bombs in flight tests in August, a rare disclosure about the state of U.S. nuclear testing.
