2.6 OpenGL como una Máquina de Estados
2.6.1 Generalidades del Dibujo en Computador
The primary purpose of the “Weaver” stance is to maximize recoil control.
STANCE: The shooter should be looking at the target,
where he wants the bullet to hit. He should be standing with feet parallel, about shoulder width apart, weight evenly balanced and with the strong side at a slight angle (usually not more than about 45 degrees) away from the target. The shoulders, hips, and feet should all be in the same plane with no twisting of the body. This position must be maintained throughout the presentation and while shooting for maximum recoil control. If any shifting of position occurs, the shooter should slightly bend his support knee and lean toward the target, keeping the strong side shoulder, hip and leg/foot all in a straight line.
Fig. 3.1 Weaver Stance
If the shooter bends the support knee and leans forward but bends at the waist so that the upper body is vertical, recoil control diminishes greatly. This “lunging” often occurs when the shooter becomes fatigued and may feel more natural, shifting the center of gravity backward to assist in holding the pistol up. If this tendency begins to appear, it must be corrected quickly to prevent the formation of bad habits and incorrect muscle memory
The head is kept upright with the face perpendicular to the ground. This gives the maximum visual field and keeps the inner ear (the body’s “gyroscope”) properly oriented for good balance, this is especially important in dim light when visual references are reduced or absent.
2008
The Modern Isosceles Stance
The Modern Isosceles is another widely accepted shooting stance that is being taught across the country. It is used by many of the top professional shooters in the nation, including Ron Avery, Jerry Barnhart, and many others. It differs somewhat from the traditional Isosceles used by many agencies.
The traditional stance, as promulgated by the FBI and others, had the shooter squatting slightly, with his back straight, head upright, arms fully extended and locked, and the weight centered neutrally over both feet. The feet were parallel, approximately shoulder width apart. This placed the body weight behind the center of gravity and placed the hands higher than the shoulders, creating an upward angle to the arms. When trying to shoot in this position, the body rocks back under recoil and the arms pivot at the shoulders. This evolved slightly with the head being rolled forward and the shoulders rolling forward, as well.
In the Modern Isosceles, the center of gravity is shifted forward, toward the balls of the feet. The upper body is curled forward slightly. The arms are held more in line with the shoulders. Both wrists are set and the support hand thumb and wrist are held in a straight line, resulting in a very strong grip. The grip, when set, assists in controlling muzzle flip very effectively. The grip places the heel of the support hand very close to bore line, which decreases the leverage the gun has in recoil as well as placing the tendons of the support hand and wrist in a straight line.
The muscles and tendons of both forearms, the elbow, wrists and hands are set in medium to firm static contraction, depending on the amount of recoil in the handgun. The rest of the body is relaxed. The feet are bladed slightly, about 30 degrees, in the natural interview stance used by the officer.
Both arms are braced behind the gun with the elbows at natural extension. This allows two pivot points at both shoulders. The shoulders are relaxed and down. The gun is centered and close to the midline of the body; recoil is absorbed passively by the body through both arms. The axis of recoil is through the centerline of the body, and the upper body is generally more squared to the target than in the Weaver stance. Stability and balance are achieved by shifting the center of gravity forward and keeping the hands at the same height as the shoulders. When the gun is fired, the arms move in and out like a piston, rather than moving up and down.
Relaxing the shoulders contributes to helping absorb recoil more effectively. The elbows are allowed to come to natural extension, rather than being locked outward. The head is moved forward to get a clearer view of the relationship between the sights and the target as well as bringing the center of gravity forward.
These subtle changes to the traditional Isosceles, creating the Modern Isosceles, allow the shooter to relax more behind the gun and allow him to concentrate on shooting without worrying about maintaining active tension in the stance. In addition, both sides of the body are doing the same thing; the resulting symmetry is easier to assume under stress.
Fig. 2.3c Isosceles Stance Fig. 2.3d Isosceles Stance
TURNING 90 DEGREES TO THE TARGET
During a shooting situation you may find yourself in a position where you have to deal with multiple assailants or find yourself being flanked by an attacker. In either case you would have to turn from you basic stance 90 Degrees right or left to engage your adversary. In order to accomplish this you must perform the following;
Turning 90 Degrees Right; from the Modern Isosceles position pivot on the ball of
your right foot picking up your left and swinging fully around to face the new direction.Caution your side arm is not removed from the holster until you are facing the new direction and stable.
Turning 90 Degrees Left; from the Modern Isosceles position pivot on the ball of your
left foot picking up your right and swinging fully around to face the new direction. Cautionyour side arm is not removed from the holster until you are facing the new direction and stable.
Review of Test Questions
2008
Fig. 3.2a Obtaining Proper Grip
Fig. 3.2b Obtaining Proper Grip