Correction

July 13, 2016

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.

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