The earliest known date for the creation of a shooting club formed specifically for the use of firearms comes from Lucerne, Switzerland, where one club has a charter dating from 1466. Small companies of shooters ( Schützenfähnlein) from the German states and Swiss cantons would form teams of Scharfschützen for such popular competitions proudly carrying flags depicting a crossbow on one side and a target musket on the other. The word alludes to good marksmanship, itself descendent of the shooting competitions ( Schützenfeste) that took place throughout the year in Munich in the 15th century. The older term sharpshooter comes from the calque of German word Scharfschütze, in use by British newspapers as early as 1801. The term sniper was first attested militarily in 1824, becoming common place in the First World War. This evolved to the agent noun sniper, first appearing by the 1820s. Accomplishing such a shot was regarded as exceptional, and inevitably during the late 18th century, the term snipe shooting was simplified to sniping. In the 18th century, letters sent home by English officers in India referred to a day's rough shooting as "going sniping", as it took a skilled flintlock sportsman a lot of patience and endurance to wing-shoot a snipe in flight. Snipe hunters therefore needed to be stealthy in addition to being good trackers and marksmen. The name sniper comes from the verb to snipe, which originated in the 1770s among soldiers in British India in reference to shooting snipes, a wader that was considered an extremely challenging game bird for hunters due to its alertness, camouflaging color and erratic flight behavior. In training, snipers are given charts that they're drilled on to ensure they can make last-minute calculations when they are in the field. They also need to have the skill set to use data from their scope and monitors to adjust their aim to hit targets that are extremely far away. Snipers need to have complete control of their bodies and senses in order to be effective. In addition to long-range and high-grade marksmanship, military snipers are trained in a variety of special operation techniques: detection, stalking, target range estimation methods, camouflage, tracking, bushcraft, field craft, infiltration, special reconnaissance and observation, surveillance and target acquisition. Snipers generally have specialized training and are equipped with high-precision rifles and high-magnification optics, and often also serve as scouts/ observers feeding tactical information back to their units or command headquarters. The second number is the time it takes to fall from the top of the trajectory onto the target area.A sniper is a military/ paramilitary marksman who engages targets from positions of concealment or at distances exceeding the target's detection capabilities. For easier mathematical manipulation I'll write $y_0$ for "initial position $y$", $v_,$ is the time it takes from the instant of the launch until the projectile reaches the top of its trajectory. These are the same calculations that the "regular" formulas come from,Įxcept that the "up" and "down" parts are not equal.Īlternatively, you can use your formula for height. The total flight time is the time going up plus the time going down.ĭuring the total flight time, the projectile continues moving at the same horizontal velocity. You also compute the height at the top of the trajectory (initial height plus height gained during the time you just calculated).įrom the height at the top of the trajectory, and the height of the impact area (I'm guessing this is zero for your problem, since you only said the initial height was not zero), you compute the amount of time spent falling. (That is, we pretend the Earth is flat and non-rotating.)Īssuming the initial firing direction is at some upward angle, you have an initial upward velocity component and an initial forward velocity component.įrom the initial height and upward velocity you compute the time until the top of the trajectory, when the projectile has zero vertical velocity. I'll make the usual first-year physics assumptions that there is no air resistance and no effects from the curvature of the Earth or from the Earth's rotation.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |