NATIONAL HARBOR, Md.—The F-47 is expected to make its first flight in 2028, the Air Force’s top officer said Monday—advancing the timeline by a year. “We got to go fast,” Air Force Chief of Staff Gen. David Allvin said during his keynote address at the Air, Space and Cyber Conference here. The team is committed to getting the first one flying in 2028.”Manufacturing has begun on the first F-47, Allvin addedPublic details about the F-47 have been few. In May, Allvin posted a chart that said the F-47 will be operational in “2025 to 2029,” have a combat radius of more than 1,000 nautical miles, and fly faster than Mach 2. For comparison, the F-22 Raptor has a combat radius of 590 nautical miles and a top speed over Mach 2, while the F-35 has a combat radius of 670 nautical miles and a top speed of Mach 1.6.