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Page 1 WORLD CLASS - through people, technology and dedication.
Seaglider Field Team Operations
Page 2 WORLD CLASS - through people, technology and dedication.
Ø Team Responsibilities
Ø Vehicle and Equipment Assembly
Ø Pre-Launch
Ø Launch and Recovery
Ø Disassembling, Cleaning, and Packing the glider
Seaglider Field Team Responsibilities
Page 3 WORLD CLASS - through people, technology and dedication.
Ø Carry out the physical hands-on glider tasks
• Install antenna, rudder and wings in the field
• Conduct the Self Test prior to Sea Launch
• Deploy and recover the vehicle
• Disassemble, clean and stow the vehicle
Seaglider Shipping Crate Contents
Page 4 WORLD CLASS - through people, technology and dedication.
Ø The glider ships in a single gray shipping crate
Ø Unpack the following items from the crate:
• Launch and recovery cradle parts
• Seaglider
• Antenna assembly
• Wings, rudder, and wands
• Field laptop
• Communications cable
• Spares kit
• Seaglider notebook Main compartment Cover with storage
Seaglider and Equipment Assembly
Page 5 WORLD CLASS - through people, technology and dedication.
Seaglider Set-up for Self Test
Page 6 WORLD CLASS - through people, technology and dedication.
Ø Fully assembled glider
Ø Laptop with DB-9 serial or USB port and Tera Term communication program
Ø Non-powered communications cable
Ø Power on/off wand
Ø Cell/Iridium phone and number to call pilot
Ø Seaglider Notebook
Seaglider Set-up for Self Test
Page 7 WORLD CLASS - through people, technology and dedication.
Ø Position fully assembled glider outside, nose down, antenna up at ~ -60 degree angle
Ø The antenna must have an unobstructed view of the sky
Ø Connect the communications cable to the laptop and the glider
Ø Power on the laptop, start up Tera Term and open a log file
Ø Power on the Seaglider
Ø Begin the Self Test
Seaglider Self Test Tera Term Output
Page 8 WORLD CLASS - through people, technology and dedication.
Ø Initial Tera Term output
Seaglider Deployment
Page 9 WORLD CLASS - through people, technology and dedication.
Ø If pilot team determines the glider is ready for a field deployment after reviewing the Self Test output • Pilot team instructs field team to begin Sea Launch program • Midway through the Sea Launch program glider generates and sends a .prm file to
the basestation • Pilot team reviews the file and determines if Sea Launch can continue • If review is favorable, pilot team instructs field team to continue Sea Launch • Field team loads the boat
− Seaglider − Launch and Recovery Cradle − Tag Lines − Deck Box − Hand-held GPS − Binoculars − Cell phone or Iridium satellite phone − Notepad, clipboard, wax pencil − Launch coordinates − Personal gear
• Field team heads to launch site
Seaglider Deployment – Small Boat
Page 10 WORLD CLASS - through people, technology and dedication.
Ø At the launch site the Field Team: • Attaches a positively buoyant tag line to the
glider • Sets up the deck box and transducer • Removes the protective covers from the sensors • Deploys the glider either
− Nose first • Put the glider in its cradle on the gunwale, nose
facing outboard • Remove the straps securing the glider to the
cradle • Gently holding the antenna, slide the glider and
cradle over the side and release the glider − Tail first
• Put the glider in its cradle on the gunwale, antenna facing outboard
• Remove the straps securing the glider to the cradle
• Slide the glider and cradle further out over the gunwale and tilt downward until the glider slides off the cradle.
Seaglider Deployment – Small Boat
Page 11 WORLD CLASS - through people, technology and dedication.
Ø With the glider still tethered • Field Team assesses the glider’s buoyancy
− Is part of the rudder visible about the water surface?
• Field Team deploys the transducer and interrogates the glider at the specified frequency − Does the glider respond at the anticipated
frequency? • Field Team notifies Pilot Team of the observations • Pilot Team determines if the deployment can
continue • When Pilot Team gives permission to remove the tag
line, do so. Pilot Team will have glider begin dive 1 • Pilot Team reviews data from first dive and
determines if the glider can remain deployed or should be recovered
• Field Team remains on site until released by Pilot Team
Seaglider Deployment – Large Boat
Page 12 WORLD CLASS - through people, technology and dedication.
Ø The method used will vary by vessel • General Method:
− Attach a quick release line around the glider, just forward of the rudder
− Pass the other end of the line through a sheave and onto a winch
− Lift the glider off the deck and over the side − Activate the quick release when the glider is less
than .5 m from the water − Field Team notifies Pilot Team of the deployment
and how the glider is riding in the water − Pilot team begins mission if buoyancy looks
good − Pilot Team reviews data from first dive and
determines if the glider can remain deployed or should be recovered
− Field Team remains on site until released by Pilot Team
Seaglider Recovery – Small Boat
Page 13 WORLD CLASS - through people, technology and dedication.
Ø The Field Team heads to the recovery site
Ø Pilot Team places $QUIT in cmdfile Ø Field Team locates glider and initiates
recovery • Field Team gently holds antenna and
slides the cradle between the boat and the glider
• Field Team moves glider into the cradle and hauls the glider/cradle unit partially on board – letting the water drain out of the fairings
• Field Team brings glider completely on board when most water has drained and secures the glider to the cradle
• Field Team rinses glider with fresh water and replaces the sensor covers
Ø Field Team wands off glider
The number of gliders recovered should equal the number of gliders deployed
Seaglider Recovery – Large Boat
Page 14 WORLD CLASS - through people, technology and dedication.
Ø The Field Team heads to the recovery site
Ø Pilot Team places $QUIT in cmdfile Ø Field Team locates glider and initiates
recovery Ø Recovery will vary by vessel
• One method − Loop of line with thin strand
of wire woven through it mounted to a long pole
− Other end of line is passed through a sheave to a winch
Ø Field Team wands off glider
Seaglider Cleaning
Page 15 WORLD CLASS - through people, technology and dedication.
Ø Field Team removes the sensor caps and rinses glider, wings, rudder and antenna with fresh water • Block the hole in the nose of the
forward fairing and fill the fairing with water until it spills out of the opening around the CT sail and the rudder
• After the sensors have been rinsed with fresh water, rinse the CT sail with bleach solution (50 parts water to 1 part bleach)
• Immediately replace the sensor caps (exposure to light will damage some sensors)
Ø Allow the glider to dry
Seaglider and Equipment Disassembly
Page 16 WORLD CLASS - through people, technology and dedication.
Page 17 WORLD CLASS - through people, technology and dedication.