Lockheed Ventura

Lockheed Ventura. The Lockheed Ventura was a twin-engine medium bomber and maritime patrol aircraft developed from the Lockheed Model 18 Lodestar transport. Initially ordered by the Royal Air Force and later adopted by the United States Army Air Forces and the United States Navy, it served in World War II across multiple theaters. Though its early combat career was challenging, the Ventura evolved into a capable long-range patrol bomber, seeing extensive service in the Pacific War and with several Allied air forces.

Design and development

The Ventura's origins trace to a 1940 British Purchasing Commission requirement for a more advanced successor to the Lockheed Hudson. Based on the commercial Lockheed Model 18 Lodestar, the new design, designated Model 37 by Lockheed Vega, featured a strengthened airframe, more powerful Pratt & Whitney R-2800 Double Wasp engines, and greater defensive armament. The prototype, built at the Lockheed Burbank plant, first flew on 31 July 1941. While sharing a familial resemblance with the Hudson, the Ventura was larger, faster, and could carry a heavier bomb load to targets in Nazi Germany. Initial production for the Royal Air Force proceeded rapidly, though the aircraft's handling characteristics and vulnerability in a daylight bombing role would soon become apparent.

Operational history

The Ventura entered combat with the Royal Air Force's No. 21 Squadron RAF in late 1942, performing daylight raids over occupied Europe such as the attack on the Philips radio works in Eindhoven. These missions proved costly, leading to its withdrawal from the medium bomber role by the RAF Bomber Command. The United States Army Air Forces employed its B-34 Lexington and B-37 variants primarily as trainers and for anti-submarine patrols along the United States coastline. The aircraft found its true niche with the United States Navy, which operated it as the PV-1 Ventura. From 1943, PV-1s flew long-range patrol, bombing, and night-fighter missions across the Pacific Ocean, supporting operations in the Aleutian Islands Campaign, Solomon Islands campaign, and New Guinea campaign. After the war, Venturas served with the air forces of Japan, South Africa, and Portugal, among others, with the South African Air Force retiring its last examples in 1962.

Variants

The primary variants included the Ventura Mk I and Mk II for the Royal Air Force, which differed in engine types and armament. The United States Army Air Forces versions were the B-34 Lexington (RAF Ventura Mk II) and the B-37, fitted with Wright R-2600 engines. The most numerous variant was the United States Navy PV-1 Ventura, optimized for maritime patrol with enhanced fuel capacity and radar. A dedicated night-fighter version for the Royal Air Force was the Ventura Mk II (NF). The subsequent major development was the Lockheed PV-2 Harpoon, which featured a greater wingspan and improved payload. Post-war, many aircraft were converted for civilian use as executive transports or aerial survey platforms.

Operators

Major military operators during World War II included the Royal Air Force, Royal Canadian Air Force, Royal Australian Air Force, and the United States Navy. The South African Air Force used Venturas extensively in the postwar period. Other operators included the Força Aérea Portuguesa, the Armée de l'Air, and the Royal New Zealand Air Force. Post-war, the nascent Israeli Air Force acquired surplus Venturas, using them in the 1948 Arab–Israeli War. The aircraft was also operated by the naval aviation services of Brazil, Peru, and the Netherlands.

Specifications (PV-1 Ventura)

* **Crew:** 4–5 (pilot, co-pilot/navigator, bombardier, radio operator, gunner) * **Length:** 51 ft 9 in (15.77 m) * **Wingspan:** 65 ft 6 in (19.96 m) * **Height:** 11 ft 10 in (3.61 m) * **Empty weight:** 20,197 lb (9,161 kg) * **Max takeoff weight:** 31,000 lb (14,061 kg) * **Powerplant:** 2 × Pratt & Whitney R-2800-31 Double Wasp 18-cylinder radial engines, 2,000 hp (1,500 kW) each * **Maximum speed:** 322 mph (518 km/h, 280 kn) at 13,800 ft (4,200 m) * **Range:** 1,660 mi (2,670 km, 1,440 nmi) * **Service ceiling:** 26,300 ft (8,000 m) * **Armament:** 6 × .50 caliber (12.7 mm) M2 Browning machine guns (nose, dorsal, ventral turrets); up to 3,000 lb (1,400 kg) of bombs or depth charges or 1 × Mark 13 torpedo

Category:Military aircraft of World War II Category:United States bomber aircraft 1940–1949 Category:Lockheed aircraft