*INCLUDE_TRANSFORM can do the bulk of the work in converting a model from one system
of units to another by virtue of the transformation factors on Card 4.
Set INCOUT1 on card 4 to 1 in order to get a new keyword file 
called dyna.inc.  Cards 2, 3, and 5 can each be a blank line.

IMPORTANT:  *INCLUDE_TRANSFORM will convert coordinates and
constitutive parameters but is unable to make appropriate unit
conversions to input entities whose fundamental units cannot be 
ascertained by the software, e.g, datapoints in *define_curve. 
The onus is on the user to verify a comprehensive transformation.

Example input deck to convert units:

*KEYWORD
*INCLUDE_TRANSFORM
keyword_deck_to_convert
$#  idnoff    ideoff    idpoff    idmoff    idsoff    idfoff    iddoff
         0         0         0         0         0         0         0
$#  idroff
         0
$_________________________________________________
$#  fctmas    fcttim    fctlen    fcttem   incout1
$$ mks to English (inch, lbf-s^2/inch, sec)
 0.00571, 1.,  39.37, KtoF, 1
$$ English (inch, lbf-s^2/inch, sec) to mks 
$ 175.1, 1.,  0.0254, FtoK, 1
$$ English (inch, lbf-s^2/inch, sec) to mm, ms, kg 
$ 175.1, 1000.,  25.4, FtoK, 1
$$ g cm microsec to 1000kg mm sec
$ 1.e-6, 1.e-6, 10., , 1
$$ g,micros,cm   to  mks
$ 0.001, 1.e-6, .01, , 1
$_________________________________________________
$#  tranid
         0
*END