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8 method.  Glass transition temperatures were determined using the Northrop Grumman Corp.
B2 Division process specification T-139A† .  The cold and elevated temperatures used for
testing were -125°F and 180°F, respectively. 6.0   Test Results        Results of the testing are shown in Tables 6 through 13.  For the mechanical and the bolt
bearing properties, most results are the average of data from six specimens.  For the OHC,
OHT, and CAI properties, most results are the average of data from three specimens.
However, due to the loss of some specimens (either due to testing or instrumentation failure),
some results are the average of data from fewer specimens.  The number of data points used
to calculate a particular property is given in the tables.        Normalization of fiber dominated mechanical properties was performed with respect to
the measured ply thickness.  The nominal ply thickness was determined by averaging all the
ply thicknesses of specimens used to determine mechanical properties for each material form.
The normalized values were calculated by the equation Normalized Value =  Measured Value  x Specimen Thickness Nominal Thickness where the "Nominal Thickness" is the nominal ply thickness times the number of plies in the
laminate.        The mechanical, structural, and additional properties of MR50/LTM25 are shown in
Tables 6 through 9.  Tables 6 and 7 present the mechanical properties.  Table 8 presents the
structural properties.  Table 9 presents the additional properties listed in Table 2.        The mechanical, structural, and additional properties of CFS003/LTM25 are shown in
Tables 10 through 13.  Tables 10 and 11 present the mechanical properties.  Table 12 pre-
sents the structural properties.  Table 13 presents the additional properties listed in Table 2. † Process specification T-139A is proprietary to the Northrop Grumman Corp.  Thus, this process specification is not publicly available and no reference can be given.

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