light. For example, light-colored paint is used in the
interior of the ship to distribute natural and artificial
light to the best advantage. These same properties of
reflection and absorption, incidentally, make camou-
flage painting possible. For these and other reasons, the
Navy uses a great deal of paint.
Recommended Painting Procedures
As you know, there are many kinds of paint. For
example, you cannot use the same type of paint on the
deck, topside, and bulkheads in the captains cabin.
There is a different paint made for almost every pur-
pose. Detailed instructions on the proper paint to use for
each job may be found in the applicable NAVSEA
The most important single factor in securing good
paint performance is proper surface preparation. Dirt,
oil, grease, and rust or mill scale must be removed
completely, and the surface must be thoroughly dry.
Equipment used to prepare surfaces includes hand
tools, power tools, sandblasters and shot blasters, soap
(or detergents) and water, and various paint and varnish
Each year the Navy spends thousands of dollars
developing and testing finishes for specific surfaces.
Consequently, you have the best material available. If
you prepare the surface properly, use the recom-
mended finish, and apply the finish correctly, you can
have a first-rate job that lasts a long time. Do not use
any material not provided by or methods not recom-
mended by the Navy.
Lubrication and Inspection
Preservation of equipment and spare parts is a con-
tinuous job aboard a ship. The moist salt air causes rust
to form in a very short time. The operation and mainte-
nance manual for each particular item will indicate the
type of preservation to be used and which parts should
Moving parts must be kept free of corrosion by
application of the proper lubricant. Parts that cannot be
painted and that are not used very often should be coated
with a preservative compound that is readily removable
with solvents or can be wiped off. Dirt and rust should
be removed carefully before applying preservatives or
Such items as webbing and rubber goods require
no preservative; however, they should be stowed in a
clean, dry place when not in use. These items are
subject to deterioration because of age and should be
inspected frequently. When the over-age date
(stamped on the webbing) is reached, the material
should be discarded and replaced.
BLUEPRINTS AND DRAWINGS
LEARNING OBJECTIVE: Describe the infor-
mation contained in blueprints, charts, and
All ABFs must be able to read blueprints and
drawings. As you advance in rating, you are expected
to be able to make sketches and drawings.
A sketch is made freehand and shows rough out-
lines and only those details that are necessary to visu-
alize a system or an object. A drawing is similar to a
sketch, but it is made with mechanical drawing instru-
ments and is drawn to scale.
A blueprint is a duplicate of a drawing or sketch.
Usually, only accurate drawings are blueprinted.
These blueprints are furnished by the manufacturers
of the machinery and equipment installed and used
aboard ship, and also by the personnel concerned with
the building and maintenance of the ship.
Mechanical drawing is a special language and is
defined as follows: A language which uses lines, sym-
bols, dimensions, and notations to accurately describe
the form, size, kind of material, finish, and construction
of an object.
Blueprints are the link between the engineers who
design equipment and the people who build, maintain.
and repair it. In a comparatively little space, they give
a great deal of information in a universal language
Of the many types of blueprints you may use aboard
ship, the simplest one is the plan view. This blueprint
shows the position, location, and use of the various parts
of the ship. You may use plan views to find your duty
and battle stations, the sick bay, the barbershop, and
other parts of the ship.
In addition to plan views, you will find aboard ship
other blueprints called assembly prints. These prints
show various kinds of machinery and mechanical
equipment. Assembly prints show the various parts of
the mechanism, how the parts fit together, and their
relation to each other.
Individual mechanisms, such as motors and pumps,
are shown on unit or subassembly prints. These show
location. shape. size, and relationships of the parts of
the subassembly or unit. Assembly and subassembly