Ammunition and Explosive Storage Magazines
RC Arch 357428-357430, Modified IAW OCE Drawing 626739
| Approved for New Construction | ECM Designation | Designer & Drawing Number | DDESB Approval Date |
|---|---|---|---|
| No | 7-BAR | NAVFAC RC Arch 357428-357430, Modified IAW OCE Drawing 626739 | 25-Oct-56 |
Comments/Design Considerations -
This magazine design, modified with an Army blast door, was successfully tested In 1946 at Naval Proving Ground, Arco, Idaho, with an NEW of 500,000 pounds NEW. Refer to paragraph 2.3.5 of TP 15 for additional information regarding the test. DoD 4145.27M, March 1969 permitted this ECM to be separated by 210 feet for quantities up to 250,000 pounds NEW and 400 feet for quantities between 250,000 pounds and 500,000 pounds NEW. The 1 December 1955 ASESB QD Standards permitted this ECM design, if it had been modified IAW Bureau Y&D Drawing 626739, dated 19 Mar 54, to use a 185-foot separation distance for quantities up to 500,000 pounds NEW. If not, then a minimum separation distance of 210 feet was required for NEW quantities up to 250,000 pounds and a 400-foot separation distance was required for NEW quantities from 250,000 to 500,000 pounds. Paragraph 2.3.5.3. of TP 15 provides additional information to address the door. with respect to the nine year gap between when the 1946 test occurred and 1954, when Bureau Y&D Drawing 626739 was approved. Bureau Y&D Drawing 626739 was provided for a 13-inch thick headwall and improved door design.
This magazine design, modified with an Army blast door, was successfully tested In 1946 at Naval Proving Ground, Arco, Idaho, with an NEW of 500,000 pounds NEW. Refer to paragraph 2.3.5 of TP 15 for additional information regarding the test. DoD 4145.27M, March 1969 permitted this ECM to be separated by 210 feet for quantities up to 250,000 pounds NEW and 400 feet for quantities between 250,000 pounds and 500,000 pounds NEW. The 1 December 1955 ASESB QD Standards permitted this ECM design, if it had been modified IAW Bureau Y&D Drawing 626739, dated 19 Mar 54, to use a 185-foot separation distance for quantities up to 500,000 pounds NEW. If not, then a minimum separation distance of 210 feet was required for NEW quantities up to 250,000 pounds and a 400-foot separation distance was required for NEW quantities from 250,000 to 500,000 pounds. Paragraph 2.3.5.3. of TP 15 provides additional information to address the door. with respect to the nine year gap between when the 1946 test occurred and 1954, when Bureau Y&D Drawing 626739 was approved. Bureau Y&D Drawing 626739 was provided for a 13-inch thick headwall and improved door design.
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