MIL-M-8555C
3.8.10 Assembly and handling. The missile design shall allow attachment
of removable surfaces in 1 minute or less by four men without special tools or
use of detachable screws. The missile design shall provide a handling break
between the missile armament and propulsion sections, forming two handling
pieces which shall be disassembled or reassembled within 15 minutes. Assembly
of parts shall be accomplished such that damage is not incurred by any part of
the assembly. Threaded parts shall show no evidence of cross threading or
other damage. The missile design shall be coordinated with the design of the
shipboard, aircraft, or land-based handling equipment to allow ease of
handling missile sections and assembled missiles. Handling provisions shall
not adversely affect missile performance. The missile shall be clearly marked
showing the proper location of support when the missile or missile sections
are normally placed on supports such as dollies or slings to prevent damage tc
fragile sections or components. All external provisions subject to damage in
shipping and handling shall be protected by substantial, easily removable
guards, or shall themselves be easily removable and replaceable. The design
for handling shall include provisions for towing, hoisting, jacking,
retrieving, and similar operations, as required.
3.8.11 Sectionalization. When necessary to facilitate handling,
transportation, and storage, missiles shall be of sectionalized construction
adaptable to rapid field or fleet assembly. In general, sectionalization
shall allow separate storage of explosives or hazardous materials. Where
practicable, each operating system shall be contained within a single section
to facilitate storage, assembly, handling, maintenance, and periodic test.
3.8.12 Access and inspection. Access doors or removable covers shall be
provided and located as required for inspection, test, lubrication, drainage,
fuzing, and adjustment and replacement of parts consistent with the mission of
the missile. The airframe shall avoid (1) use of structural doors through
which loads must be transferred, and (2) airframe sag which may present a
door-to-opening alignment difficulty. Access openings shall be of sufficient
size to furnish an adequate view of the parts to be inspected, to provide
ample access to parts involved, and to permit disconnection and removal of a
part without having to remove other parts or units not affected. The doors or
covers shall be externally flush, easily opened and held securely closed by
approved type fasteners, and shall be so designed that the action of the
slipstream shall tend to keep these doors closed in flight. Screws used as
fasteners for access openings shall be of identical length and diameter for
each opening insofar as practicable. When screws of different length are
required for an opening, a method of differentiation (such as a diffe[ent
diameter for each length of screw) shall be used. Captive fastener units
shall be used.
3.8-13 Quick disconnect and unitized items. The maximum practical use
shall be made of unitized construction with automatic alignment tc facilitate
installation and quick disconnect of those items requiring removal for
servicing or maintenance purposes.
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