SBD Dauntless was a World War II American naval dive bomber and scout plane that was manufactured by Douglas Aircraft Company.
General Specifications
- Type: Two-seat Scout Bomber or Dive-Bomber (SBD-5).
Wings
- Configuration: Low-wing cantilever monoplane.
- Structure: Rectangular center-section with tapering outer sections and detachable wing-tips. Made of duralumin multi-cellular structure with flush-riveted stressed-skin covering.
- Control Surfaces: Metal-framed ailerons with fabric covering, and a trim-tab in the port aileron. Slots in the wings are located ahead of the ailerons.
- Dive Brakes: Hydraulically-operated perforated metal dive-brakes are located above and below the trailing-edges of the outer wings and below the trailing-edge of the center-section beneath the fuselage.
Fuselage
- Construction: Oval duralumin monocoque structure. The fuselage is split longitudinally for manufacture, with the upper half in one piece and the lower half in three pieces, plus a tail cone. The forward lower section includes a built-in center-section.
- Structure: Built up of channel-section transverse frames, extruded stringers, and 24ST Alclad skin. The rear fuselage has solid bulkheads dividing it into watertight compartments.
Tail Unit
- Type: Cantilever monoplane type with an all-metal tailplane featuring stressed-skin covering.
- Control Surfaces: Rudder and elevators have metal frames with fabric covering. Trimming-tabs are present in the movable surfaces.
Landing Gear
- Type: Retractable type with hydraulic retraction and emergency hand-operated mechanical gear.
- Mechanism: The cantilever oleo shock absorber legs hinge at the extremities of the center-section, retracting inward to recess into wells under the center-section.
- Tail Wheel: Solid-tyre tail-wheel, either locked or free-swiveling. A deck-landing hook is present under the rear fuselage.
Power Plant
- Engine: One Wright R-1820-66 Cyclone nine-cylinder radial air-cooled engine, rated at 1,200 h.p. at 5,500 ft. and 900 h.p. at 16,640 ft., with 1,350 h.p. available for takeoff.
- Propeller: Hamilton-Standard Hydromatic full-feathering propeller with a diameter of 10 ft. 3 in. (3.3 m).
- Fuel Capacity: Total capacity of 284 U.S. gallons, with fuel tanks located in the center-section and roots of the outer wings. Oil tank with a capacity of 15.5 U.S. gallons in the engine compartment, including an oil cooler with a controllable air scoop.
Accommodation
- Cockpits: Tandem cockpits under a continuous transparent canopy, with the pilot’s cockpit forward and the gunner’s cockpit aft. Armor protection is provided for the crew.
- Equipment: Duplicate flight controls, Sperry automatic pilot, full radio equipment, automatically inflatable two-seat dinghy, oxygen system, and 24-volt electrical system.
Armament
- Forward Armament: Two 0.50 in. Browning machine-guns in the fuselage firing through the propeller arc.
- Rear Armament: Two 0.30 in. machine-guns on a flexible mounting in the rear cockpit.
- Bomb Load: A swinging bomb cradle beneath the fuselage and bomb racks under the outer wing sections. Standard loads include one 1,000 lb. bomb under the fuselage and two 100 lb. bombs under the wings. For scout-bombing missions, one 500 lb. and two 100 lb. bombs can be carried. Some versions are equipped for long-range photographic reconnaissance duties.
This aircraft is known for its durability and effectiveness in both dive-bombing and scouting roles, featuring advanced features for its time, including automatic pilot systems and good armor protection.
Specifications
variant | SBD-1 | SBD-2 |
---|---|---|
crew | 2 | 2 |
wingspan (m) | 12,66 | 12,66 |
lenght (m) | 9,8 | 9,80 |
height (m) | 4,14 | 4,14 |
wing area (m2) | 30,19 | 30,19 |
empty weight (kg) | 2690 | 2564 |
gross weight (kg) | 3444 | 3920 |
max take-off weight (kg) | 4445 | 4699 |
wing loading (kg/m²) | 129,8 | |
engine | Wright R-1820-32 1000hp at 2350 rpm, 950 hp at 1525 m | Wright R-1820-32 1000hp |
propeller | ||
fuel (l) | 795 | 1173 |
engine oil (l) | 58,5 | 58,5 |
max speed (km/h) | 407 | 412 at 4875 m |
cruising speed (km/h) | 228 | 238 |
ceiling (m) | 9022 | 8310 |
range (km) | 1384 – 1875 | 1970 – 2220 |
rate of climb | 8,8 m/s | 5,5 m/s |
bombs (kg) | 1×454 + 2×45 | 1×454 + 2×45 |
armament | 2×12,7 mm (720 rounds), 1×7,62 mm (600 rounds) | 1×12,7 mm, 1×7,62 mm |
US Navy serials | 1596-1631; 1735-1755 | 2102 – 2188 |
variant | SBD-3 | SBD-4 |
---|---|---|
crew | 2 | 2 |
wingspan (m) | 12,66 | 12,66 |
lenght (m) | 9,96 | 9,96 |
height (m) | 4,14 | 4,14 |
wing area (m2) | 30,19 | 30,19 |
empty weight (kg) | 2803 | 2885 |
gross weight (kg) | ||
max take-off weight (kg) | 4717 | 4717 |
wing loading (kg/m²) | ||
engine | Wright R-1820-52 1000hp | Wright R-1820-52 1000hp |
propeller | Hamilton Standard Hydromatic, 3-bladed 3,3 m | |
fuel (l) | 946 | 946 |
engine oil (l) | 58,5 | 58,5 |
max speed (km/h) | 402 | 402 |
cruising speed (km/h) | 245 | 245 |
ceiling (m) | 8260 | 8260 |
range (km) | 2165 | 2165 |
rate of climb | 6 m/s | 6 m/s |
bombs (kg) | 1×454 + 2×45 | 1×454 + 2×45 |
armament | 2×12,7 mm, 2×7,62 mm (2000 rounds) | 2×12,7 mm, 2×7,62 mm |
US Navy serials | 4518 – 4691; 03185-03384; 06492-06701; 2109 | 06702-06991; 10317-10806 |
USAAF serials | SBD-3A (A-24-DE): 41-15746 – 41-15823; 42-6682 – 42-6771 | SBD-4A (A-24A): 42-6772 – 42-6831; 42-60772 – 42-60881 |
RNZAF | NZ5001-5018 | NZ5019-5045 |
variant | SBD-5 | SBD-6 |
---|---|---|
crew | 2 | 2 |
wingspan (m) | 12,66 | 12,66 |
lenght (m) | 10,06 | 10,06 |
height (m) | 4,14 | 4,14 |
wing area (m2) | 30,19 | 30,19 |
empty weight (kg) | 2905 | 2973 |
gross weight (kg) | 4245 | 4293 |
max take-off weight (kg) | 4853 | 4937 |
wing loading (kg/m²) | 140,6 | 142,2 |
engine | Wright R-1820-60 1200hp | Wright R-1820-66 1350hp at 0 m at 2700 rpm, 1100 hp at 3500 m |
propeller | Hamilton Standard Hydromatic, 3-bladed 3,3 m | Hamilton Standard Hydromatic, 3-bladed 3,3 m |
fuel (l) | 946 + 2×219 | 1075 |
engine oil (l) | 58,5 | 58,5 |
max speed (km/h) | 406 at 4265 m | 422 at 5640 m |
cruising speed (km/h) | 298 | 298 |
ceiling (m) | 7780 | 7780 |
range (km) | 1795 – 2520 | 1980 – 2735 |
rate of climb | 8,6 m/s | 8,6 m/s |
bombs (kg) | 1×454 or 716 + 2×147 | 1×454 or 716 + 2×147 |
armament | 2×12,7 mm, 2×7,62 mm | 2×12,7 mm, 2×7,62 mm |
US Navy serials | 10807-11066; 28059-28829; 28831-29213; 35922-35949; 35951-36421; 36433-36932; 54050-54599 | 54600-55049 |
USAAF serials | 42-60882 – 42-60941 transferred to USMC as SBD-5A 09693 – 09752 | |
RNZAF | NZ5046-5068 | |
RAF | JS997-999; JT923-928 |
variant | A-24B |
---|---|
crew | 2 |
wingspan (m) | 12,66 |
lenght (m) | 10,06 |
height (m) | 4,14 |
wing area (m2) | 30,19 |
empty weight (kg) | 2871 |
gross weight (kg) | |
max take-off weight (kg) | 4850 |
wing loading (kg/m²) | |
engine | Wright R-1820-60 1200hp |
propeller | Hamilton Standard Hydromatic, 3-bladed 3,3 m |
fuel (l) | |
engine oil (l) | 58,5 |
max speed (km/h) | 410 |
cruising speed (km/h) | 298 |
ceiling (m) | 7780 |
range (km) | 2520 |
rate of climb | 8,6 m/s |
bombs (kg) | 1×454 or 716 + 2×147 |
armament | 2×12,7 mm, 2×7,62 mm |
USAAF serials | 42-54285 – 42-54899 |
Bibliography
- Krzysztof Janowicz, Andre R Zbiegniewski: Douglas SBD Dauntless, Kagero Monographs 34
- Robert C. Stern: SBD Dauntless in Action, Squadron Signal 64
- Richard S. Dann: SBD Dauntless, Walk Around Squadron Signal 33
- Jacek Nowicki: Douglas TBD Devastator, SBD Dauntless, Wydawnictwo Militaria 119 (Polish/English)
- SBD Dauntless, SB2C Helldiver – Famous Airplanes of the World 40 (japan)
- Bert Kinzey: SBD Dauntless in detail & scale 48, Squadron/Signal Publications
- Peter C. Smith: Douglas SBD Dauntless, Crowood Press
- Barrett Tillman, Tom Tullis: SBD Dauntless Units of World War 2 – Osprey Combat Aircraft 10
- Douglas Aircraft Co.: Pilot’s Handbook Model SBD-3
- David Brazelton: The Douglas SBD Dauntless, Aircraft Profile Number 196
- U.S. Navy Carrier Bombers of WWII: TBD Devastator SBD Dauntless SB2C Helldiver TBF/TBM Avenger Squadron/Signal Publications 6205, Aerodata International
- Robert Pęczkowski, Artur Juszczak: Douglas SBD Dauntless Mushroom Yellow Series 6123
- David Doyle: SBD Dauntless in action, Squadron/Signal Publications 10236
- Barrett Tillman: The SBD Dauntless: History’s Most-Effective Dive-Bomber
- R. Johnson – American Attack Aircraft Since 1926
- John M. Elliott – The Official Monogram U.S. Navy and Marine Corps Aircraft Color Guide, Vol 2: 1940-1949
- Thomas E. Doll – US Navy Aircraft Camouflage & Markings 1940-1945, Squadron/Signal Publications 6087
- Thomas E. Doll, Barkley R. Jackson: Navy Air Colors: United States Navy, Marine Corps, and Coast Guard Aircraft Camouflage and Markings, Vol. 1, 1911-1945 – Squadron/Signal Publications 6159
- Craig L. Symonds – The Battle of Midway
- Charles River Editors – The Battle of the Coral Sea: The History and Legacy of World War II’s First Major Battle Between Aircraft Carriers
- Jonathan Parshall, Anthony Tully – Shattered Sword: The Untold Story of the Battle of Midway
- Stephen L. Moore – Pacific Payback: The Carrier Aviators Who Avenged Pearl Harbor at the Battle of Midway
- Rene J. Francillon – McDonnell Douglas Aircraft since 1920: Volume 1