MPM 1/72-SCALE DECALS-ONLY VOUGHT SB2U VINDICATOR DIVE BOMBER WW2 USMC VMSB USN

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MPM 1/72-SCALE DECALS-ONLY VOUGHT SB2U VINDICATOR CARRIER DIVE BOMBER WW2 USMC VMSB-131 VMSB -2 VMSB-241 USN

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Additional Information from Internet Encyclopedia

The Vought SB2U Vindicator is an American carrier-based dive bomber developed for the United States Navy in the 1930s, the first monoplane in this role. Vindicators still remained in service at the time of the Battle of Midway, but by 1943, all had been withdrawn to training units.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.

Design and development

In 1934, the United States Navy issued a requirement for a new Scout Bomber for carrier use, and received proposals from six manufacturers. The specification was issued in two parts, one for a monoplane, and one for a biplane. Vought submitted designs in both categories, which would become the XSB2U-1 and XSB3U-1 respectively. The biplane was considered alongside the monoplane design as a "hedge" against the U.S. Navy's reluctance to pursue the modern configuration.

The XSB2U-1 was of conventional low-wing monoplane configuration with a retractable conventional tailwheel landing gear, the pilot and tail gunner being seated in tandem under a long greenhouse-style canopy. The fuselage was of steel tube construction, covered with aluminum panels from the nose to the rear cockpit with a fabric-covered rear fuselage, while the folding cantilever wing was of all-metal construction. A Pratt & Whitney R-1535 Twin-Wasp Junior radial engine drove a two-blade constant-speed propeller, which was intended to act as a dive brake during a dive bombing attack. The use of propeller braking was not entirely successful, and in practice US Navy Vindicators lowered the aircraft's undercarriage to act as a speed brake and dived at shallower angles. A single 1,000 lb (450 kg) bomb could be carried on a swinging trapeze to allow it to clear the propeller in a steep dive, while further bombs could be carried under the wings to give a maximum bombload of 1,500 lb (680 kg).

The SB2U was evaluated against the Brewster XSBA-1, Curtiss XSBC-3, Great Lakes XB2G-1, Grumman XSBF-1 and Northrop XBT-1. All but the Great Lakes and Grumman submissions were ordered into production. Designated XSB2U-1, one prototype was ordered on 15 October 1934 and was delivered on 15 April 1936. Accepted for operational evaluation on 2 July 1936, the prototype XSB2U-1, BuNo 9725, crashed on 20 August 1936.[4] Its successful completion of trials led to further orders,[1] with 56 SB2U-1s ordered on 26 October 1936,[5] and a further 58 of a slightly modified version, the SB2U-2, on 6 October 1938.

The SB2U-3 was a more heavily modified version, intended as a long-range scout bomber, capable of being fitted with a conventional wheeled undercarriage, for operations from aircraft carriers or land airbases, or with floats. To give the required increased range, the fuselage fuel tank fitted to the SB2U-1 and -2 was supplemented by integral wing tanks, while the aircraft's tail had an increased span. The prototype XSB2U-3, converted from the last SB2U-1, flew in February 1939, and after testing as both a landplane and floatplane, 57 SB2U-3s were ordered on 25 September 1939, mainly for the US Marine Corps.

The SB2U is prominently featured in the 1941 film Dive Bomber.

There were 260 examples of all Vindicator variants produced, and a single example is preserved at the National Naval Aviation Museum at NAS Pensacola, Florida.

Deliveries to the US Navy began in December 1937, when four aircraft joined VB-3 aboard the aircraft carrier Saratoga, replacing Curtiss BFC-2 biplanes. As well as Saratoga, Vindicators served on the carriers Lexington, Ranger, and Wasp. Air Group Nine, destined for Essex, trained in Vindicators aboard the escort carrier Charger, but they transitioned to the Douglas SBD Dauntless before Essex joined the war.

During the attack on Pearl Harbor, seven Vindicators from the U.S. squadron VMSB-231 were destroyed at Ewa Field

U.S. Marine Corps

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. Airmen with experience in more modern aircraft spoke disparagingly of SB2Us as "vibrators" or "wind indicators" in their later combat assignments. Captain Richard E. Fleming piloted a SB2U-3 Vindicator in an attack on the Japanese cruiser Mikuma on 5 June 1942, for which he was posthumously awarded the Medal of Honor.


 
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