README file in the engineering directory:

The following directories include files collected with an instrument to
monitor engineering parameters while underway.  Pressure, roll and
pitch attitude of the fish, wing angle and impeller revolutions are
telemetered to the shipboard lab every 0.4 seconds.  On deck, the data
were merged with the command and hydraulic valve control signals from
the deck unit and cable tension.  During the 4th Subduction cruise, the
housing of the unit flooded and was rebuilt.  All parameters except
impeller revolutions were monitored and recorded.

The programs plot the engineering data from the files in the sub3eng and
sub4eng directories.  Each file is one hour long, and generally contains
5 cycles of seasoar.

A space bar stroke halts the plot.  The background color can be changed
by the number keys, and some other keys, ie. R=red.  The F1 function
alternates the blue and brown background, and for fun the F2 key
toggles sound corresponding to the pressure.  The display repeats
chosen file group until the space bar is keyed.  The display is paused
by the Pause key and restored ny any other key (except SPACE).  Full
scale divisions are approximately as follows.  Pressure is 500 meters,
tension is 10000 pounds, roll and pitch are plus and minus 50 degrees
about the center and wing angle is plus and minus 50 degrees about the
center.  Impellor RPM is about 400, and command (CMD) and valve current
are shown for reference.  Each cycle of the command ramp is 12 minutes
long.

During file 1325, the seasoar was put under control of the PC and 
subsequent records show some engineering tests, mostly after file
1346.  During the engineering tests, the command (CMD) and Valve
displayed are signals from the standard Chelsea controller and are 
not representative of the signals generated by the computer.

The directories include:

1-  Programs:
   Sub3cd.bas : Basic program that helps view the engineering parameters
	        on the screen for Subduction 3.
   Sub4cd.bas : Basic program that helps view the engineering parameters
		on the screen for Subduction 4.
   Sub3cd.exe : Executable versions of above Basic program
   Sub4cd.exe : Executable versions of above Basic program

2- Sub3eng:
   data files for Subduction 3 cruise: files 3000 - 3043 and files 
6001 - 6090.  These files include a full star pattern, a long transect,
seasoar deployment and recovery.  The data files are ascii with the
following format:

Variables 1 - 4 are date and time
Time is defined as:
## ## ## ## = day of month, hour, minute, second

variable 5 = Engineering Pressure
Variable 6 = CTD Pressure
Variable 7 = Roll
Variable 8 = Pitch 
Variable 9 = Wing Angle
Variable 10 = Impellor Revolutions per minute
Variable 11 = Tension
Variable 12 = Valve current
Variable 13 = Command

3- Sub4eng:
   Data files corresponding to Subduction 4 cruise: files 1281-1352.
These files include a full star pattern, a long transect that include
engineering tests with the seasoar, seasoar deployment and recovery.
The data files are in the same format as Subduction 3 except for time.

Time defined as 
##.####:## =  Day of month. hour and minute: seconds