Model Variants (Including Prototypes)
XBT-1 - Initial Prototype
XBT-2 - Single Example Prototype fitted with 1,000hp Wright R-1820-32 Cyclone engine.
XSBD-1 - 1937 Redesignation of XBT series models; improved landing gear systems and vertical tail fin.
BT-1 - Initial Northrop Prototype Model Designation on which the SBD was based on.
SBD-1 - Armed with 2 x fixed 7.62mm machine guns and 1 x trainable 7.62mm machine gun; 57 produced.
SBD-2 - Increased fuel capacity; revised weaponry; 87 produced.
SBD-3 - Fitted with Wright R-1820-52 powerplant; 584 produced; bulletproof windscreen; self-sealing fuel tanks; increased armor protection for crew; increased fuel capacity; fitted with 2 x 12.7mm machine guns and 2 x trainable 7.62mm machine guns.
SBD-4 - Improved electronics; 780 produced.
SBD-5 - Fitted with 1,200hp Wright R-1820-60 powerplant; increased ammunition capacity; 3,025 produced.
SBD-6 - Fitted with Wright R-1820-66 powerplant; increased fuel capacity; improved throughout; final main SBD production version.
SBD-1P - Photographic reconnaissance model.
SBD-2P - Photographic reconnaissance model.
SBD-3P - Photographic reconnaissance model.
A-24 "Banshee" - USAAF version of the SBD-3
A-24A "Banshee" - USAAF Army version of the SBD-4
A-24B "Banshee" - USAAF Army version of the SBD-5
DB.Mk I - Fleet Air Arm (FAA - Britain) variant based on the SBD-5.