WWW.SURVIVALEBOOKS.COMTM 9-1330-200-11/OP 3833 1 st Rev. Vol 2, CH-2 TM 1330-12/1A CH2(a) Ammunition items havingcomparable storage risks are grouped together in thesame storage category.(b) Within each storage category, themaximum quantity of ammunition to be stored withineach stack and within each Field Storage Unit (FSU),and the minimum distance between FSU's and theminimum distance between FSU's and categories, arespecified in quantity-distance table 4-1 through 4-5 forthe storage of ammunition in the field.(c) Normally, only one kind ofammunition is stored in a stack. Ammunition should bearranged in stacks in the best manner to facilitateinventory and inspection. Where camouflage is aconsideration, stacks may be stepped in toward the top(terraced or pyramid stacking) to decrease shadows.Whenever desirable, components of complete roundsmay be stored within the same FSU.(d) Small-arms ammunition, exceptbulk packed incendiary and tracer cartridges (whichmust be stored in category D) may be stored with anycategory.(2) Categories for storage of conventionalammunition. For storage purposes, conventionalammunition is divided into the following categories:(a) Category A. Fixed and semifixedartillery ammunition, except incendiary and chemical.(b) Category B. Propelling charges,fuzes, primers, flash reducers and separate loadingartillery projectiles including HE and AP, but excludingincendiary and chemical projectiles.(c) Category C. Mortar ammunitionand hand grenades, except incendiary and chemical.(d) Category D. Pyrotechnics andchemical ammunition of all types, including chemical,filled rockets; gas, smoke, and incendiary bombs; gasand smoke artillery ammunition; incendiary andchemical grenades, smoke pots, GB and VX filledmines, and bulk packed incendiary and small-armstracer cartridges.(e) Category E. All Demolitionexplosives, antitank and antipersonnel mines (exceptGB and VX loaded), and components such as blastingcaps, firing devices, detonating cord, and safety fuze.(f) Category F. Rockets, rocketmotors, and rifle grenades, except chemical.(g) Category G. The following items ofAir Force class V supply-all unfuzed high-explosivebombs, aircraft mines, aircraft torpedoes, andfragmentation bombs, fuzes and/or primer-detonatorsfor the above items; and fragmentation bomb clusters,fuzed or unfuzed. The remainder of Air Force class Vitems must be stored in other applicable categories.b. Quantity-Distance Tables for Field StorageCategories. Procedures set forth in quantity-distancetables 41 through 4-5 are to be used as a guide in thestorage of ammunition in the field only. Theseprocedures are based upon the necessities incident tothe storage of ammunition in the field. It must beemphasized that any reduction of distances or increasein tonnages to those prescribed increases the probabilityof loss of life and ammunition.Table 4-1. Category A, B, or DMinimum distance in feet betweenGross tons Gross tons Stacks Stacks FSUper stack per FSU Unbarricaded Barricaded Unbarricaded CategoriesLess than 10... 400 40 30 300 75010-20 max. 400 50 40 300 750NOTEIf desirable, fixed and semifixed smoke ammunition, except WP., may be stored in category A.The minimum distance between a stack of propelling charges and any other stack must be 100feet whether barricaded or unbarricaded.Table 4-2. Category CMinimum distance in feet betweenGross tons Gross tons Stacks Stacks FSUper stack per FSU Unbarricaded Barricaded Unbarricaded CategoriesLess than 10... 300 75 60 300 90010-20 max. 300 105 75 300 9004-2
WWW.SURVIVALEBOOKS.COMTM 9-1330-200-11/OP 3833 1 st Rev. Vol 2, CH-2 TM 1330-12/1A CH2NOTEWhenever storage space is noted, category C ammunition may be combined with category E.Table 4-3. Category EMinimum distance in feet betweenGross tons Gross tons Stacks Stacks FSUper stack per FSU Unbarricaded Barricaded Unbarricaded CategoriesLess than 5... 50 75 60 300 9005-10 max. 50 105 75 300 900Table 4-4. Category FMinimum distance in feet betweenGross tons Stack barricaded Gross tonsper stack & unbarricaded Der FSU FSU unbarricaded FSU barricaded CategoriesThe max. allowable See note below- 20 200 75 1500gross wt. per stack 30 230 90 1500will be 20 tons. 40 265 99 150050 295 101 150060 330 120 150080 390 135 1500100 455 150 1500NOTEThe minimum distance between barricaded stacks will be 75 feet. The minimum distancebetween unbarricaded stacks will be 150 feet.Table 4-5. Category G Class VMinimum distance in feet betweenGross tonsper FSU FSU unbarricaded FSU barricaded Categories20 200 75 150030 230 90 150040 265 99 150060 299 101 150060 330 120 150080 390 135 1500100 455 150 1500NOTEUnder normal conditions, the Department of the Air Force will store and issue all class Vsupplies; however, depot commanders should always be prepared to handle these supplies inemergencies.4-6. Proceduresa. Use heavy, well supported dunnage to preventstack from sinking, and to keep bottom tier offground.b. Use hardstand of gravel and sand rather thanexcessive dunnage.c. Allow at least 6-inch clearance beneath pile forair circulation.d. Dig suitable trenches to prevent water fromflowing under pile.4-3