Infantry Drills

F-21: Maximum Ordinate

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F-21. Maximum ordinate is the highest point above the LOS the trajectory reaches between the muzzle of the weapon and base of target. It always occurs at a point about two-thirds of the distance from weapon to target and increases with range. Like trajectory, maximum ordinate increases as the range increases. (See figure F-7.)

Figure F-7. Trajectory and maximum ordinate

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Go Back To: U.S. Army FM 3-21.8: The Infantry Rifle Platoon and Squad