| BG | |
|---|---|
 | |
| Great Lakes BG-1 of bombing squadron VB-3B | |
| Role | Dive-bomber |
| Manufacturer | Great Lakes Aircraft Company |
| First flight | 1933 |
| Introduction | 1934 |
| Retired | 1941 |
| Primary users | United States Navy United States Marine Corps |
| Number built | 61 |
The Great Lakes BG was an American carrier-based dive bomber of the 1930s. Designed and built by the Great Lakes Aircraft Company of Cleveland, Ohio, 61 were used by the United States Navy and United States Marine Corps from 1934 to 1940.
The Great Lakes Aircraft Company, who had previously built 18 TG-1 and 32 TG-2 variants of the Martin T4M, [1] received an order from the U.S. Navy for a prototype two seat dive bomber capable of carrying a 1,000 lb (454 kg) bomb in 1933. [2] (This compared with contemporary Scout Bombers such as the Vought SBU and the Curtiss SBC Helldiver, also capable of dive bombing, which had bombloads of 500 lb (227 kg)).
The resulting design was a single engined biplane with single bay, unequal span tapered wings and a fixed tailwheel undercarriage. The aircraft was powered by a 750 hp (560 kW) Pratt & Whitney Twin Wasp Junior radial engine. [3]
The prototype XBG-1 was completed in mid-1933 and evaluated against the competing Consolidated XB2Y-1, proving superior. As a result, in November 1933, orders were placed for production of the aircraft as the BG-1, which was fitted with a canopy over the cockpits for the two crew, in place of the open cockpits of the prototype. A total of 61 of these aircraft were built, including the prototype. [3] [4]
The BG-1 entered service in October 1934, equipping VB-3B (later re-designated VB-4) aboard the carriers Ranger and Lexington. [5] It was also operated by the Marine Corps, equipping two squadrons from 1935. [6]
The BG-1 continued in front line use with the Navy until 1938, and with the Marines Corps until 1940. [7] It was used for utility duties at shore bases until June 1941. [4] About 22 were converted to target drones for naval anti-aircraft gunnery, with one being used to test TV-guidance for air-to surface missiles, and was successfully guided by signals from a Beechcraft JRB to hit a target raft on Chesapeake Bay on 19 April 1942. [8]
United States 
Data from United States Navy Aircraft since 1914 [7]
General characteristics
Performance
Armament
Aircraft of comparable role, configuration, and era
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