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The PT-91 Twardy ( Polish pronunciation: [ˈtfar.dɨ], English: Hard) is a Polish main battle tank. A development of the T-72M1, it entered service in 1995. The PT-91 was designed at the OBRUM ( Ośrodek Badawczo-Rozwojowy Urządzeń Mechanicznych, or Research and Development Centre for Mechanical Appliances) and is produced by the Bumar ...
PT-105, an 80' Elco boat, under way. A PT boat (short for patrol torpedo boat) was a motor torpedo boat used by the United States Navy in World War II.It was small, fast, and inexpensive to build, valued for its maneuverability and speed but hampered at the beginning of the war by ineffective torpedoes, limited armament, and comparatively fragile construction that limited some of the variants ...
The Packard 1A-2500 is an American V-12 liquid-cooled aircraft engine designed by Packard in 1924 as a successor to the World War I-era Liberty L-12. [1] Five aero variants were produced, of which the 3A-2500 was the most numerous. Three marine versions, used most prominently in American World War II PT-boats, the 3M-2500, 4M-2500, and 5M-2500 ...
The X18 tank boat uses the main engine in the form of two MTU V12 2000M86 diesel engines with a power of 1700 horsepower. The X18 is also equipped with the MJP 550 Waterjet propulsor. [6] With a fuel tank capacity of around 6000 liters, the X18 is able to reach destination as far as 600 nautical miles (1,100 km) without refueling.
Boat building. Boat building is the design and construction of boats (instead of the larger ships) — and their on-board systems. This includes at minimum the construction of a hull, with any necessary propulsion, mechanical, navigation, safety and other service systems as the craft requires. [1]
The seakeeping qualities of boats and ease of construction matched to the available Packard engines made a perfect combination. PT-109 was an 80 ft (24 m), 40-ton Elco motor torpedo boat (MTB), one of hundreds built by the firm between 1942 and 1945 in Bayonne, New Jersey.
While boat costs vary significantly, you can expect to pay anywhere from $15,000 to $75,000 for the average new vessel, and upwards of $100,000 for a more luxurious model. Taking out a boat loan ...
The Allison V-1710 aircraft engine designed and produced by the Allison Engine Company was the only US -developed V-12 liquid-cooled engine to see service during World War II. Versions with a turbocharger gave excellent performance at high altitude in the twin-engined Lockheed P-38 Lightning, and turbo-superchargers were fitted to experimental ...