Figure 34.—Obstacle 8.
Figure 35.—Obstacle 9.
c. Construction.—The ten obstacles are constructed from readily available materials. They consist mostly of old auto tires, canvas, and 2 by 4 inches and 4 by 4 inches lumber. Obstacles 1, 2, and 10 have moving wooden arms which are not difficult to construct. The obstacles should be set far enough apart to allow maneuvering between them. The assault course can be laid out in any available terrain, and should be at least 200 to 300 meters in length. Rugged terrain provides excellent physical conditioning facilities. Natural obstacles such as streams, ridges, thick foliage, etc., can be used to make the course more difficult. Artificial obstacles such as wire entanglements, log walks, hurdles, and fences can also be added.
Figure 36.—Obstacle 10 (Combination Obstacle).
d. Safety Precautions.—Students should first run the assault course at a moderate pace, and increase their speed as their technique and physical condition improve. The instructor ensures that discipline and control are maintained. The instructor and his assistants station themselves along the course to observe the method of attack and make necessary corrections. In addition, the following safety precautions should be observed:
(1) Ensure that the bayonet is securely attached to the weapon before beginning the assault course.
(2) Caution personnel to remain in the line of obstacles. Serious injury can result if personnel are permitted to zigzag through the course.
(3) Do not permit personnel to attack the first obstacle until preceding personnel have reached the third obstacle.