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The Para-Ordnance P14-45 (14.45) is an improved derivative of the successful United States Armed Forces' M1911 pistol.Created by Para-Ordnance (later Para USA) in the 1980s, it was the first ever M1911 derivative to feature a high-capacity double-stack magazine.
A disassembled Mauser action showing a partially disassembled receiver and bolt. In firearms terminology and law, the firearm frame or receiver is the part of a firearm which integrates other components by providing housing for internal action components such as the hammer, bolt or breechblock, firing pin and extractor, and has threaded interfaces for externally attaching ("receiving ...
IV Series 80; these models aimed at providing a more "mil-spec" pistol to be sold at a lower price than Colt's other 1911 models in order to compete with imported pistols from manufacturers such as Springfield Armory and Norinco. The 1991–2001 model used a large "M1991A1" roll mark engraved on the slide.
The 84 has a double stacked magazine with 13 round capacity, while the 83 and 85 have a single stacked magazine with seven and eight round capacity respectively, and resultant thinner grips. The 84 and 85 have a 3.81" barrel, while the 83 has a 4" barrel.
Aircraft were first used to carry mail as cargo in 1911. Eventually manufacturers started designing aircraft for other types of freight as well. There are many commercial aircraft suitable for carrying cargo such as the Boeing 747 and the more prominent An‑124, which was purposely built for easy conversion into a cargo aircraft.
There are three types of natural ventilation occurring in buildings: wind-driven ventilation, pressure-driven flows, and stack ventilation. [15] The pressures generated by 'the stack effect' rely upon the buoyancy of heated or rising air. Wind-driven ventilation relies upon the force of the prevailing wind to pull and push air through the ...
Other changes included reducing the boiler pressure from 200 psi (1,379 kPa) to 185 psi (1,276 kPa) at 80% of maximum safe rated pressure, offset by the fitting of superheaters. [ 2 ] [ 3 ] The first engine upgraded was A 2 820, and the work involved provision of new cylinder castings rather than reboring the prior set. [ 19 ]
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