MIL-C-81861 Control, Depth, Torpedo C-7821/AThe equipment covered by this specification shall be for airborne use and shall provide for inflight manually selecting depth settings of the Mk 44 Mod 0 or Mod 1 Torpedo or the search depth and ceiling settings of the Mk 46 Mod 0 or Mod 2 Torpedo prior to their release from the carrying aircraft. In addition, the equipment shall be capable of selecting the SNAKE mode gyro settings of the Mk 46 Mod 1 and the HATS mode gyro settings for the Mk 46 Mod 2 Torpedos. Also, a visual indication that the torpedo setting matches the selected setting shall be provided.

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PUBLICATIONS

Naval Air Systems Command

Avionics Installation Instructions

EI-604

for Torpedo Depth Control C-7821/A

Preflight and Flight Test Instruc-

ET-604

tions for Torpedo Depth Control

C-7821/A

Availability of Documents.

2.1.1

a. When requesting specifications, standards, drawings, and publications, refer

to both title and number. Copies of this specification and applicable specifications

required by contractors in connection with specific procurement functions may be

obtained upon application to the Commanding Officer, Publications and Forms Center,

Code 105, 5801 Tabor Avenue, Philadelphia, Pennsylvania 19120.

REQUIREMENTS

Preproduction.

This specification makes provision for preproduction

3.1

testing.

Parts and Materials. In the selection of parts and materials

3.2

fulfillment of major design objectives shall be the prime consideration. In so doing,

the following shall govern:

a. Microelectronic Technology shall be considered and microelectronic items shall

conform to requirements specified herein.

Other parts and materials requirements shall conform to MIL-E-5400.

c. Nonrepairable subassemblies shall be used in accordance with AR-10 and as

outlined in MIL-E-5400.

d. When previously produced models of this equipment did not use nonrepairable

subassemblies, the design shall not be changed to employ nonrepairable assemblies

without the approval of the procuring activity.

Nonstandard Parts and Materials Approval. Approval for the use of

3.2.1

nonstandard parts and materials (including electron tubes, transistors and diodes)

other than microelectronic devices shall be obtained as outlined in MIL-E-5400.

Microelectronic devices shall be approved as outlined in AR-5.

Microelectronic Modular Assemblies. When used, Microelectronic Modular

3.2.2

assemblies shall meet the requirements of AR-5. Conformal coatings, encapsulants,

embedments or potting materials used with modular assemblies containing integrated

circuits and discrete parts shall be easily removable without damage to the assembly.

Modules. The electronic portions of the equipment shall be functionally

3.2.3

modularized in accordance with AR-10.