scope:

This specification covers the general requirements for design and establishes uniform methods for testing cartridge actuated devices, (CADs). Guns, rockets, rocket catapults, ballistic hose/tubing, and stores separation equipment are not covered by this specification. For purposes of this specification, the term cartridge actuated device includes any device which provides the means of releasing potential cartridge energy or harnessing this energy to accomplish work. Linear shaped charge, explosive energy transfer lines, and "sealed-in" cartridge actuated devices (see 6.4.1) fall within the scope of MIL-D-21625. However, devices of the "sealed-in" type are also required to meet the safety and structural design requirements of this specification as specified in 3.6.3. The purpose of the testing program is to determine performance, safety, soundness of mechanical design, and resistance to environments encountered during storage, handling, and service use. Cartridge actuated devices are safe for handling and do not deteriorate to a degree which would render their performance or safety doubtful after being subjected to the testing programs of this specification.

Type I

Safety of handling and installation. This type of release is required prior to handling and installation of CADs in naval equipment. For requirements, see 3.17.1. Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commanding Officer, Naval Air Warfare Center Aircraft Division Lakehurst, Systems Requirements Department, Code SR3, Lakehurst, NJ 08733-5100, by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter.

Type II

Interim service release. This release is required prior to any flights or use of CADs involving naval personnel and will be granted in accordance with the provisions of 3.17.2. The Naval Air Systems Command has the prerogative to authorize procurement of CADs for fleet use, subsequent to a Type II release.

Type III A

Final release to service (fully documented). This type of release is required for admission of CADs into the Naval supply system as a fully documented device (see 3.9). For requirements, see 3.17.2

Type III B

Special release to service (documented by a source control drawing). If the data required for a Type III A release are not available, such as proprietary rights and patents, then a Type III B release to service is required for admission of CADs into the Naval supply system. For requirements for a Type III B release, see 3.17.2. For documentation and data requirements for a Type III B release, see 3.9.

Type IV

Use of approved cartridge actuated device (using same ballistic energy source and associated equipment) in a new application. If a CAD has previously been granted a Type III A or Type III B release and is to be used in a new application, a Type IV release to service for the new application will be granted in accordance with the requirements of 3.17.3.

intended Use:

The CADs covered by this specification are intended to be used in conjunction with cartridges and ballistic energy sources.