The Vought SB2U Vindicator was a carrier-based dive bomber developed for the United States Navy in the 1930s, the first monoplane in this role. Entering service in 1937, the SB2U was obsolete at the outbreak of World War II. SB2U Vindicators still remained in service at the time of the Battle of Midway, but by 1943, all had been withdrawn to training units.
It was known as the Chesapeake in Royal Navy service.
Vindicators served on four carriers, USS Lexington, USS Saratoga, USS Ranger, and USS Wasp between December 1937 and September 1942. VMSB-131 and VMSB-241 were the only two USMC squadrons that fielded the Marine-specific SB2U-3 between March 1941 and September 1943. VMSB-241's Vindicators saw combat at the Battle of Midway in June 1942.
Around 170 of all Vindicator variants were produced, and a single example is preserved at the National Museum of Naval Aviation at NAS Pensacola.