Query: How many planes did the United States have in the Battle of Midway?
Context: Planned surveillance of the U.S. fleet by long range seaplane did not happen (as a result of an abortive identical operation in March), so Fletcher's carriers were able to proceed to a flanking position without being detected. Nagumo had 272 planes operating from his four carriers, the U.S. 348 (115 land-based).