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The Northrop Grumman XRQ-73 SHEPARD (Series Hybrid Electric Propulsion AiRcraft Demonstration) is an tailless flying wing hybrid-electric Group 3 unmanned aerial vehicle (weighting about 1,250 lb (570 kg)) developed by Northrop Grumman.
Pearson 424 Pearson 323. Pearson Yachts was a sailboat manufacturer founded by Everett Pearson and Clinton Pearson in 1956. [1] One of the first fiberglass sailboat manufacturers, they grew rapidly during the 60s and 70s, while also developing and designing new boats.
Shortly thereafter former Grumman executives formed the Marathon Boat Group to produce the canoes. In 2000 the Group worked out an agreement with Northrop Grumman to sell the canoes using Grumman name and logo. [26] [27] Grumman sport boat [28] Grumman-Flxible 870 transit buses (1978–1982) [29] Ben Franklin (PX-15), a science submarine [30]
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.
Two dozen boats are planned that will be larger and faster, with a longer range and twice the capacity over Mike Boats. The MSV(L) will be roughly 100 feet (30 m) long, with a draft of less than four feet, a speed of 18 knots and the capacity to carry either an M1 Abrams tank, two Strykers with add-on armor, or four Joint Light Tactical Vehicles .
The capsize screening formula (CSF) is a controversial method of establishing the ability of boats to resist capsizing. It is defined for sailboats as: Beam / ((Displacement/64.2) 1/3), with Displacement measured in pounds, and Beam in feet. A lower figure supposedly indicates greater stability, however the calculation does not consider factors ...
Electric Boat, which built all 18 Ohio-class submarines, [24] will do most of the work on all 12 Columbia boats, including final assembly. [25] Huntington Ingalls Industries’ Newport News Shipbuilding will serve as the main subcontractor, participating in the design and construction and doing 22 to 23 percent of the work.