Figure 2-27. Extract of TM 9-1300-206, 60-percent factor.
Figure 2-28. Extract of TM 9-1300-206, minimum distance.
in the following columns. For example, 750 pounds NEW of class/division 1.1 munitions would require
an intraline distance of 85 feet barricaded or 170 feet unbarricaded. (750 pounds NEW is over 700, but
less than 800.)
Now try this problem. You have 8,075 pounds NEW of class/division 1.1 munitions to be stored at an
unbarricaded site. What would the minimum intraline distance be? (Refer to Figure 2-29.) Since 8,075
pounds NEW is over 8,000, but less than 9,000, the required distance is 370 feet.
Determining Intermagazine Distance (Class/Division 1.1)
When calculating intermagazine distances, you must know the types of magazines involved. Note that
earth-covered, igloo-type magazines are considered barricaded on the rear and sides only. The front
end of such magazines is considered unbarricaded, unless an effective separate barricade is used at
that end of the magazine.