Notes on installing modified ("hexed") plane files:
- Use of the SWOTL MANAGER (SMANAGE2.ZIP) is STRONGLY
  recommended for swapping "hexed" plane files.!
- First COPY all *.SPC files located in the \SWOTL\AC
  directory to either that same directory or into
  \SWOTL\HANGAR, (the later location is recommended). These
  copies should have their extension changed from *.SPC to
  *.ORI ("original").
- The *.EXP ("experimental") files should go either in your
  \SWOTL\HANGAR or \SWOTL\AC directory, depending on how you
  handle your plane swapping.
- The *.INT files go into the \SWOTL\CP directory.
- The *.PAC files go into the \SWOTL\AC directory.
- To insert "hexed" planes manually (without SWOTL MANAGER)
  copy the *.EXP file of the plane you wish to insert into
  the \SWOTL\AC directory in place of the *.SPC file for the
  plane you wish to replace.
Example: COPY \SWOTL\HANGAR\SPITFIRE.EXP \SWOTL\AC\P51D.SPC
- To remove "hexed" planes and return to the original SWOTL
  plane files copy the *.ORI file of the plane you wish to
  restore into the \SWOTL\AC directory replacing the *.SPC
  file for the same plane.
Example: COPY \SWOTL\HANGAR\P51D.ORI \SWOTL\AC\P51D.SPC

NOTE: Some "hexed" plane files require the user to have
installed ADD-ON planes from LUCASARTS, such as the P-38.
If you enjoy SWOTL, it is HIGHLY recommended to invest in
the additional disks.  If you need more than one or two, it
would be better to invest in AIR COMBAT CLASSICS which
includes ALL the LA WWII sims and add-on disks for about $35
from most discount retailers.

If you do not have the required planes you MAY be able to
trick the computer into thinking you have the extra planes.
The following examples will replace the "missing" P-38 files
with those of the P-47.

- Create a "fake" icon file for it in the \SWOTL\FE
  directory.
Example: COPY P47ICN.PAC P38ICN.PAC

- Create false P38J.SPC files (as well as a false P38J.ORI).
Example: COPY \SWOTL\AC\P47C.SPC \SWOTL\AC\P38J.SPC
         COPY \SWOTL\AC\P47C.SPC \SWOTL\HANGAR\P38J.ORI

Occasionally other files are needed as well and this "fix"
will NOT work.