Open Access Articles- Top Results for Curtiss SBC Helldiver

Curtiss SBC Helldiver

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SBC Helldiver

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First flight

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Primary users

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United States Marine Corps
Royal Air Force
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Number built

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The Curtiss SBC Helldiver was a two-place scout bomber and dive bomber built by the Curtiss-Wright Corporation. It was the last military biplane procured by the United States Navy. Delivered in 1937, it became obsolete even before World War II and was kept well away from combat with Axis fighters.[1]

Design and development

In 1932, the U.S. Navy gave Curtiss a contract to design a parasol two-seat monoplane with retractable undercarriage and powered by a Wright R-1510 Whirlwind, intended to be used as a carrier-based fighter. The resulting aircraft, designated the XF12C-1, flew in 1933. Its chosen role was changed first to a scout, and then to a scout-bomber (being redesignated XS4C-1 and XSBC-1 respectively), but the XSBC-1's parasol wing was unsuitable for dive bombing. A revised design was produced for a biplane, with the prototype, designated the XSBC-2, first flying on 9 December 1935.[2]

The SBC-3 the initial production model was powered by a Pratt & Whitney R-1535 Twin Wasp Junior. The SBC-3 began operational service in 1938. A total of 83 SBC-3s were built.

The SBC-4 was powered by a Wright R-1820 Cyclone. The SBC-4 entered service in 1939.

Operational history

File:SBC-4 VMO-151 1941 NAN1-90.jpg
Marine Observation Squadron 151 flew the SBC-4 at Samoa until June 1943.

The Navy took deliveries of the new aircraft in mid-1937 with the first batch of carrier-based aircraft going to Yorktown, but time and technology caught up to the advanced biplane. It was relegated to hack duties and service as an advanced trainer for training units in Florida. The last aircraft was struck from the Navy roster in October 1944.

Foreign interest for the concept of a dive bomber led to orders abroad. 174 SBC-4s were built including 50 SBC-4s that were delivered to the French Navy. Five of the French order were delivered to the British Royal Air Force who named them the Curtiss Cleveland Mk.I.

The SBC Helldiver was not destined to have a long U.S. service life, but its impact was felt as the type made a lasting contribution by serving as the key platform in developing dive bombing tactics and honing aircrew skills crucial to winning the war in the Pacific.

French SBC-4s

The 50 SBC-4s delivered to France were actually aircraft already in service with the United States Navy. On 6 June 1940, Naval reservists received orders to immediately fly 50 SBC-4s to the Curtiss factory at Buffalo, New York. At Buffalo, a Bureau of Aeronautics inspector informed the pilots their aircraft were to be flown to Halifax, Nova Scotia to be loaded aboard the French aircraft carrier Béarn. From Buffalo to Halifax, the reserve pilots were officially employees of Curtiss. Curtiss paid each pilot $250 plus return rail fare from Halifax to Buffalo. All navy insignia was removed from their uniforms or taped over. Upon return to Buffalo, the pilots went back on navy orders for return to their home bases.[3]

Curtiss employees worked overtime to remove and replace all gear and instruments marked Buareo, Buships or Buord. The navy Script error: No such module "convert". machine guns were replaced with Script error: No such module "convert". guns and the aircraft were repainted in camouflage colors with the French tricolor on the rudders. The hasty conversion did not allow time for adequate checkout of replacement instruments. Weather deteriorated with rain and fog over most of the route from Buffalo to Halifax. The Bureau of Aeronautics inspector temporarily halted flights after one of the first pilots was killed in a crash between Buffalo and Albany.[3]

When the weather improved, sections of three aircraft were dispatched from Buffalo to Burlington, Vermont, then over the White Mountains (New Hampshire) to Augusta, Maine, and then to Houlton, Maine. After landing at Houlton, the aircraft were towed down a road across the Canadian border for takeoff from a New Brunswick farm pasture to avoid legal implications of flying over the border. The surviving 49 aircraft flew over the Bay of Fundy and 44 of them were loaded aboard Béarn at Dartmouth, Nova Scotia together with 21 P-36 Hawk fighters and 25 Stinson 105s for the French Armée de l'Air and five Brewster Buffalos for Belgium.[4] France surrendered while Béarn was crossing the Atlantic; she turned south to Martinique, where the SBC-4s corroded in the humid Caribbean climate while waiting on a hillside near Fort-de-France.[3] The five SBC-4s remaining in Canada when France surrendered were taken over by the United Kingdom and were used as ground-instructional airframes.[5]


File:SBC-3 Helldiver VS-3 in flight c1939.jpeg
The VS-3 CO's SBC-3, assigned to USS Saratoga (CV-3), circa 1939.
File:Curtiss Cleveland.jpg
A Cleveland I in flight
Prototype parasol-wing fighter powered by a Script error: No such module "convert". R-1510-92 radial; one built, later converted into biplane as the XS4C-1.[6]
Prototype was redesignated in the "scout" category before being redesignated again as the XSBC-1.[7]
Prototype redesignated from XS4C-1, a biplane with an R-1820-80.[8]
Redesigned biplane based on XSBC-1 and powered by a Script error: No such module "convert". XR-1510-12; one built.[8]
XSBC-2 re-engined with a Script error: No such module "convert". R-1535-82.[8]
Production variant with an Script error: No such module "convert". R-1534-94; 83 built.[8]
SBC-3 re-engined with a Script error: No such module "convert". R-1820-22; one conversion.[8]
Production variant with a 950 hp R-1820-34; 174 built, including 50 transferred to the French Navy.[8]
Cleveland I
British designation for five SBC-4s.[9]


23x15px France

23x15px United Kingdom

23x15px United States

Specifications (SBC-4)

Data from Curtiss Aircraft 1907–1947[10]

General characteristics


  • Guns:
  • 1 × 0.30 in (7.62 mm) forward-firing M1919 Browning machine gun
  • 1 × 0.30 in (7.62 mm) flexible rearward-firing machine gun
  • Bombs: 1 × bomb of up to 1,000 lb (454 kg)

See also

Related development
Aircraft of comparable role, configuration and era

Related lists



  1. ^ Wheeler 1992, p. 27.
  2. ^ Swanborough and Bowers 1976, p. 146.
  3. ^ a b c Larned 1976, pp. 97–98.
  4. ^ Green and Swanborough 1977, pp. 8–9.
  5. ^ Green and Swanborough 1977, pp. 9, 12.
  6. ^ Andrade 1979, p. 186.
  7. ^ Andrade 1979, p. 219.
  8. ^ a b c d e f Andrade 1979, p. 221.
  9. ^ Andrade 1979, p. 239.
  10. ^ Bowers 1979, p. 372.
  11. ^ Swanborough and Bowers 1976, p. 147.


  • Andrade, John. U.S. Military Aircraft Designations and Serials since 1909. Hinckley, UK: Midland Counties Publications, 1979. ISBN 0-904597-22-9.
  • Bowers, Peter M. Curtiss Aircraft, 1907-1947. London: Putnam & Company, 1979. ISBN 0-370-10029-8.
  • Doll, Thomas E. SBC Helldiver in Action, Aircraft Number 151. Carrollton, Texas: Squadron/Signal Publications, Inc., 1995. ISBN 0-89747-331-0.
  • Green, William and Gordon Swanborough. "Uncle Sam's Last Combat Biplane". AirEnthusiast Five, November 1977-February 1978. Bromley, Kent, UK: Pilot Press Ltd.
  • Larned, W.E., RADM USNR. "Comment and Discussion." United States Naval Institute Proceedings, October 1976.
  • Swanborough, Gordon and Peter M. Bowers. United States Navy Aircraft since 1911. London: Putnam, 1976. ISBN 0-370-10054-9.
  • Wheeler, Barry C. The Hamlyn Guide to Military Aircraft Markings. London: Chancellor Press, 1992. ISBN 1-85152-582-3.

External links