ARMY TM 5-5420-212-10-1MARINE CORPS TM 08676A-10/1-1FIGURE 3-12 DOUBLE STORY-DISTANCE R, T, G, H, & Nm.Rule 1Choose an LNCG setting from Table 2-14, columns (h), (i), or (j) that ensures that the value of D from Table 3-17,column (g) (from FRB/F line to the point of maximum deflection) is greater than the depth of C (from FRB/F line to WL).(1)If both bank heights are greater than 0.6 m above the waterline, go to Rule 2.(2)If either or both bank heights are less than 0.6 m from the waterline, choose an LNCG setting fromcolumn (h), (i) or (j) so that D is greater than C to avoid immersion in water, and go to Rule 2(3)If D is greater than C, go to Rule 2.(4)If D is not greater than C and the water is not flowing, go to Rule 2.(5)If D is not greater than C and immersion in water is less than 0.3 m and the current velocity is less than 5meters per second (mps), it is not essential to adjust the LNCG setting. Therefore, go to Rule 2.(6)If D is not greater than C and the current velocity is greater than 5 mps, another site must be chosen3-30FIGURE 3-11 DOUBLE STORY-DISTANCE D, W & C
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