Slocum G2 Glider Operators Training Guide
Notes for Ballasting and Lab Tests
6
TELEDYNE WEBB RESEARCH
Rev. 06/12
loadmission sci_on.mi
(if available), or type the individual commands
listed below:
•
put c_science_all_on 0
(off = -1). Tells the science computer to
sample all science sensors as fast as possible.
•
put c_science_on 3
(off = 1). Displays that data to the screen.
•
put c_science_send_all 1
(off = 0). Sends science data to the flight
Persistor.
9.
Make a note of the water temperature and conductivity. Enter this data in the
tank conditions section on the Ballast sheet of the GBPSH (Glider Ballasting
Procedure Spreadsheet). To ballast for tank conditions, copy the values from
the tank conditions section into the target conditions section. Type
loadmission sci_off.mi
to turn off the science sensors or use the three
commands indicated above.
10.
Attach a suspended scale to the glider 1” from the forward edge of the forward
hull and another suspended scale 1” from the aft edge of the aft hull. Let the
glider settle in the tank before taking readings from the forward and aft scales.
11.
Enter the scale weights from step 9 in the “Scale Readings” section of the
correct sheet of the GBPSH, i.e., G1 Shallow, G1 Deep, or G2 Deep & Shallow.
Use the Weight Adjustment section of that sheet to determine what weight
changes must be made in the glider. Remove the glider from the water and type
exit to turn off the glider. Dry thoroughly before opening to make weight
changes.
NOTE If the glider does not sink in the tank, it may be necessary to
remove it so that more weight can be added internally. Advanced users
can use external weights and scale factors to account for the density of
the weights in water.
CAUTION TWR recommends Instant Ocean® for providing an ocean
equivalent conductivity. Note that other methods of adding salt/salinity
will not provide a correct conductivity and can result in incorrectly
ballasted gliders
