Cheats:

 Press

 [Shift][T]     - Time of day
 [Shift][U]     - Look down
 [Ctrl][Alt][5] - Auto level
 [P][Tab]       - Recon camera (wait for pause before hitting [Tab])
                  While in Camera mode use the following:
                  [+]/[-]       - Increase/descrease speed
                  [PgUp]/[PgDn] - Increase/descrease altitude
                  [F3]/[F4]     - Rotate right/left
                  Hold [Shift] for up & down rotation
                  Hold [Ctrl]  for fine tuning
                  Hit [~]  to start sim back up
 [P][Tab][D]    - Debug mode
                  1st line: ?
                  2nd line: N/S & E/W Coordinates; Alt. (div. by 2);
                            Speed
                  3rd line: Frame Rate

 [P][Tab][T]    - Transporter; enter location code & hit enter.