B-29 operational range in WWII

Mar 2019
The longest B-29 raid of WWII was on August 14 1945, just before the War ended.
The 315th Bomb Wing in Guam flew almost 3800 miles over 17 hours, to drop 20,500 pounds of 100 and 250 pound bombs for the Nippon Oil Refinery 277 miles NW of Tokyo.
Wow thats a loooooooooooooong flight