Ammunition and Explosive Storage Magazines

Comments/Design Considerations -
Called a Corbetta, Beehive, or Dome Magazine. At a 23 Feb 1942 meeting, the Joint Army and Navy Board of Ammunition Storage (predecessor of ASESB) approved the Corbetta Magazine as an alternate type magazine (i.e. Non-Standard). A 12 Jul 90 DDESB letter approved a 27 Nov 89 COE letter, requesting approval to modify doors no Corbetta Type ECM at Volunteer Army Ammunition Plant (AAP) and Holston AAP. Once modified, each ECM can be sited for 500,000 pounds NEW, provided the conditions of Note 6 below were met. If they cannot be met, then the ECM must be treated as a non-standard.

A Corbetta-type ECM is considered as Undefined because its door is inadequate to prevent explosion communication. However, in 1990, the DDESB approved two improved door designs for installation onto Corbetta-type ECM. If modified with the new doors, and provided they meet minimum separation distances of 400 feet, side- to-side or rear-to-front exposures between the donor and acceptor ECM and (KI 1) front-to-front exposures between the donor and acceptor ECM, then storage of up to 500,000 pounds NEW of HD 1.1 permitted in modified Corbetta-type ECM.