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| MIL-T-18232B(AS)
3.1.12
PRODUCTION. - Careful consideration shall be given to the use
of materials, fabrication processes, assembly} and tooling
techniques that will improve the producibility of the design by reducing the
number of parts and fasteners, by simplifying joints of subassemblies and major
assemblies, and by the adoption of a manufacturing breakdown that will permit
maximum use of machine riveting, spot welding, adhesive bonding, and other labor
saving techniques. Unusual methods Of construction involving radical. departures
from standard practice or involving unusual use of machinery or tooling processes,
such as sculptured skin, shall be subject to NAVAIR approval. Chem. milling shall
be permissible, subject to approval of process specifications by NAVAIR.
Forgings, castings, and extrusions shall be used in experimental targets
in all applications where forgings, castings, and extrusions would be used in the
production target. Where limited procurement time or prohibitive tooling costs
necessitate the substitution of "hogged out," welded, formed, or an otherwise
fabricated part of a forging, casting, or extrusion, the part shall. be made to
conform as closely as possible to the configuration and physical properties of
the production counterpart. The number of right and left parts shall be kept
to a minimum.
Particular attention shall be given to avoiding construction
which promotes corrosion by the admission and holding of salt
water. Crevices, hollows, pockets, and similar details which may collect salt
water and are not self-draining shall be avoided or shall be provided with suit-
able overboard drains. For metal sections other than watertight compartments
and "tubular structures for which airtight closure by welding is provided, adequate
access shall be provided to permit ready inspection, flushing with fresh water,
and refinishing of all internal surfaces. Provisions shall be made for drainage
of condensation of sea water after immersion. Closed sections, where used, shall
have provision for drainage of condensation or sea water after immersion.- Special
effort shall be made to assure free drainage.
Where any vital moving part passes close to a fixed structure
or item of equipment, the point of nearest contact shall be
so located or arranged that gravity will normally clear this point of loose
articles or cause them to take remote positions where they cannot jam or interfere
with the moving part.
3.1.13
INTERCHANGEABILITY AND REPLACEABILITY. - Parts and assemblies
of a given model target (or models in the same series) of
production target shall be interchangeable or replaceable in accordance with
Specification MIL-I-8500.
3.1.14
INTERIOR ARRANGEMENTS. - The interior arrangement shall be
such as to minimize interference between systems, assemblies,
components, and parts during their assembly, servicing, and operation and provide
adequate accessibility and maintainability. A Three-view drawing shall be inserted
in the detail specification showing the location of all major components, recovery
and flotation system, and payload.
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