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NATO Accessory Rail (STANAG 4694) The NATO Accessory Rail (NAR), defined by NATO Standardization Agreement (STANAG) 4694, is a rail interface system standard for mounting accessory equipment such as telescopic sights, tactical lights, laser aiming modules, night vision devices, reflex sights, foregrips, bipods and bayonets to small arms such as rifles and pistols.
A rail system mounted on top of a SIG SG 550 A dovetail rail on a rifle receiver for mounting a sight. A rail integration system (RIS; also called a rail accessory system (RAS), rail interface system, rail system, mount, base, gun rail, or simply a rail [1]) is a generic term for any standardized attachment system for mounting firearm accessories via bar-like straight brackets (i.e. "rails ...
The early AC electric multiple units were referred to by a two-letter code. This was adapted for the DC third-rail system that was adopted by the Southern Railway, with units being given a three-letter code (sometimes two letters) prefixed by the number of cars in each unit, e.g. 4SUB for a four-car suburban unit.
The entity was reformed as a joint stock trading company on June 1, 1869, with ownership divided among the Cleveland, Columbus, Cincinnati and Indianapolis Railway (CCC&I), the Lake Shore and Michigan Southern Railway, and the New York Central Railroad (NYC), all part of the Cornelius Vanderbilt rail empire. The MDT entered the refrigerated ...
It also uses flat-edge rail, rather than typical rail that angles slightly inward. These factors have complicated maintenance of the system, as it requires custom wheelsets, brake systems, and track maintenance vehicles. [4] Stations have a platform height of 39 inches (991 mm). [5]
An Advanced Train Control System (ATCS) is a North American system of railroad equipment designed to ensure safety by monitoring locomotive and train locations, providing analysis and reporting, automating track warrants, detecting blind spot and similar orders.
That credit goes to Richard Swanson of A.R.M.S., who conducted research and development and acquired a patent for the rail in 1995. [5] Swan has litigated in civil court against Colt and Troy industries regarding patent infringement. The courts found that Troy had developed rifles with rail mounting systems nearly identical to the MIL-STD-1913 ...
This system is supervised by a Rail Traffic Controller (RTC) who is in constant communication with the trains and engines on his territory. The RTC has the ability to line routes and give permissive signal requests to the system in the field from a central location. The RTC can also issue special permissions to trains via radio.