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Early in World War II, target range and bearing measurements were taken over a period of time and plotted manually on a chart. [14] The speed and course of the target could be computed using the distance the target traveled over an interval of time. During the latter part of World War II, the speed of the target could be measured using radar data.
Aerospace bearings are the bearings installed in aircraft and aerospace systems including commercial, private, military, or space applications. Materials include M50 tool steel (AMS6491), carbon chrome steel (AMS6444), the corrosion resistant AMS5930, 440C stainless steel, silicon nitride (ceramic) and titanium carbide-coated 440C.
According to the Government Accountability Office (GAO), military specifications "describe the physical and/or operational characteristics of a product", while military standards "detail the processes and materials to be used to make the product." Military handbooks, on the other hand, are primarily sources of compiled information and/or guidance.
The PALS grid is easily visible in this image of the US Marine Corps' Interceptor Body Armor; note the pouches attached to the system in the background (2005). The Pouch Attachment Ladder System or PALS is a grid of webbing invented and patented by United States Army Natick Soldier Research, Development and Engineering Center used to attach smaller equipment onto load-bearing platforms, such ...
A standard Brunton compass, used commonly by geologists and surveyors to obtain a bearing in the field. In navigation, bearing or azimuth is the horizontal angle between the direction of an object and north or another object. The angle value can be specified in various angular units, such as degrees, mils, or grad. More specifically:
The IIFS load carrying vest, as having been a major conceptual improvement over precursing load bearing systems, was designed to replace the individual equipment belt, individual equipment belt suspenders, and small arms ammunition cases. These components have been an integral part of the ALICE system. The small arms ammunition cases continue ...
The M-1956 LCE continued application of the belt-supported-by-suspenders concept, adopted by the U.S. Army at least as early as the pattern 1903 equipment. [2] The M-1956 "Belt, Individual Equipment" or pistol belt differed little in form and function from the M-1936 pistol belt and would accommodate any of the pouches and equipment that would mount on the M-1936 belt.
Diagram showing principle of constant bearing, decreasing range in marine collision avoidance. When an observer sees another vessel at a constant bearing and the range continually decreases, collision is imminent. A ship seen to be on a constant bearing with decreasing range will collide with the observer's ship unless avoiding action is taken.