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The Harvard Mark II, also known as the Aiken Relay Calculator, [1] [2] [3] was an electromechanical computer built under the direction of Howard Aiken at Harvard University, completed in 1947. It was financed by the United States Navy and used for ballistic calculations at Naval Proving Ground Dahlgren .
The Mark II was the top-level product at Toyopet Store locations until the Toyota Celsior was introduced in 1989. At the Mark II's introduction in the late 1960s, Toyota was known as a small, economy car manufacturer. The Corona Mark II was sold as a larger companion to the Corona while still being smaller than the Crown.
Browns Ferry Unit 1 drywell and wetwell under construction, within a Mark I containment. BWR Type 4 (BWR-4, BWR/4): Introduced in 1966, 1100 MW (Browns Ferry 1–3). Largely similar to the BWR/3 in design with an identical recirculation system, but power density was increased by 20%. [5] Available with either Mark I or Mark II containment.
Mark II or Mark 2 often refers to the second version of a product, frequently military hardware. "Mark", meaning "model" or "variant", can be abbreviated "Mk."
It was decided, in 1943, that production of the Daimler would be continued instead of the Coventry armoured car replacing it. As a result, the order for the 2-pounder Coventry was reduced to 300 that would be sent to India. The 75 mm armed Mark II did not enter production. [4] Output concluded with a further 220 vehicles in 1945.
The Double Eagle Mark II is larger but lighter than the first Double Eagle. [1] Measuring 2.1 metres (6 ft 11 in) long, 1.3 metres (4 ft 3 in) wide, and 0.5 metres (1 ft 8 in) high, the unit weighs 340 kilograms (750 lb), dives to 500 metres (1,600 ft), and can reach 6 knots (11 km/h; 6.9 mph). [ 1 ]
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Once the Mk II was taken out of front line service, 50 of them were converted for air-sea rescue work, at first under the designation Mk IIc (type 375) but later referred to as the ASR Mk II. The Merlin XII was replaced by the Mark XX, a "rescue pack" was fitted in the flare chute and smoke marker bombs were carried under the port wing. [69]