MIL-DTL-23618H(AS)
words. The desired average is 17 words or less, but 18 to 20 words is acceptable. The use
of compound and complex sentences should be avoided in order to achieve maximum
comprehensibility.
c. Paragraphing. Paragraphs should deal with a single subject and shall include only as much
information as the average reader can comfortably retain. The desired paragraph length is
three to four sentences, but five to six sentences is acceptable.
d. Word usage. It is important to choose the correct word for each meaning, situation, or
occasion. The consistent choice of correct words and the use of simple or preferred
words will reduce a potential source of confusion. Verbs should be selected using the
preferred verbs listing contained in NAVAIR 00-25-700. The quality of sentence
structure and the correct choice and position of words in a sentence will reduce sentence
complexity.
e. Use of shall, will, shall, and may. Use the word "shall" to express a mandatory or binding
provision. "Will" may be used to express declaration of purpose. It may be necessary to
use "will" in cases where simple futurity is required, such as: "Power to the bombing mode
will be provided through the navigational system." Use "should" and "may" whenever it is
necessary to express nonmandatory provisions, or an acceptable or preferred means of
accomplishment. "Should" may also designate the proper result of an action, e.g.,
POWER lamp shall light.
f. Use of indefinite words. Indefinite words (such as approximately and about) shall not be
used to express specific limits, such as measurements, tolerances and values.
g. Tolerances, limits, and torque values. Tolerances, limits, and torque values shall be
expressed in limit dimensions and in terms compatible with the equipment authorized at
the maintenance level to which the tolerances and limits apply.
(1) In a procedural step, the acceptable range of a measurement, reading, or similar value
shall be expressed using specific limits (e.g., "between 1.5 and 2.5") rather than using a
tolerance (e.g., 1+.5 or 1+ 50%).
(2) Alternatively, a tolerance window may be used to indicate a range and the preferred
value. A measurement or adjustment factor (rising, drooping, flat, etc.) may be added
if appropriate, for example, [2.5 2.6 3.5] rising.
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