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The Northrop Grumman XRQ-73 SHEPARD (Series Hybrid Electric Propulsion AiRcraft Demonstration) is an hybrid-electric Group 3 unmanned aerial vehicle (weighting about 1,250 lb (570 kg)) developed by Northrop Grumman. [1] [2]
Northrop Grumman DARPA, USN 2003 Unmanned combat air vehicle (UCAV) [60] Naval use. X-47B: Northrop Grumman DARPA, USN 2011 UCAV Naval use. X-47C: Northrop Grumman USAF Manned bomber Proposal for a new-generation strategic bomber. Design only. X-48: Boeing NASA 2007 Blended Wing Body (BWB) [61] X-49 SpeedHawk: Piasecki: US Army 2007
The new design was turned over to the Columbia Aircraft Corporation for development and construction so that Grumman could focus on the production of fighter aircraft for the USN. The aircraft strongly resembles the J2F Duck, except for its monoplane layout, and has been referred to as a "single-winged Duck".
The Martin P5M Marlin (P-5 Marlin after 1962), built by the Glenn L. Martin Company of Middle River, Maryland, is a twin piston-engined flying boat that entered service in 1951, and served into the late 1960s with the United States Navy performing naval patrols.
Antilles Air Boats was founded in 1963, and provided transport between St Thomas and St Croix in the US Virgin Islands as well as San Juan, Puerto Rico.Antilles Air Boats built up its fleet until it operated 27 aircraft, all propeller driven float planes from World War II which were well suited to the short hops over water the airline specialized in.
G-73 Mallard at the Air Zoo. Building on the success of the Goose and Widgeon, Grumman Aircraft developed larger G-73 Mallard for commercial use.Retaining many of the features of the smaller aircraft, such as twin radial engines, high wings with underwing floats, retractable landing gear and a large straight tail, the company built 59 Mallards between 1946 and 1951.
The fuselage is 2 ft (0.6 m) longer aft of the main door, the radome is extended and there is a new curved windshield. Maximum takeoff weight is increased to 68,200 lb (30,935 kg) or 69,700 lb (31,615 kg) and there are various changes to the autopilot, flight instruments, and engine instruments.
In September 1935 Consolidated moved across the country to its new "Building 1", a 247,000-square-foot (22,900 m 2) continuous flow factory in San Diego, California. The first production PBY Catalina was launched in San Diego Bay in 1936, [ 3 ] and the first XPB2Y-1 Coronado test aircraft made its first flight in 1937. [ 4 ]