Lessons Learned

• Tether all equipment that goes in the water• Revisit the Bow mount, do not use side

mount• Bow mount needed to be strengthened• Patch test processing - Run at center

beam

Lessons Learned

• Vessel survey – stickers, position correctly to get distance

• Glue IMU in place well before vessel survey

• Don’t use Glue!• Level vessel prior to vessel survey• Prism constants – know what they are!

Lessons Learned

• PPK antenna vs antenna shows instrument error

• PPK not good for vertical (H-RMS), good enough for horizontal

• PPK drops out during hard rain• Use car battery to power Ashtech and

ensure internal battery is inserted

Other Lessons Learned

• Know your software prior to using it in the field

• Generator placement on Boat• Use Fledermaus for CUBE

Good Equipment

• Minitroll tide gage• Flip camera for tide obs• Sportscan Side Scan• Digibar sound velocity probe• Digital Level• Bow Mount• Angled Transducer

Thank YouThe 2008 Hydrographic Science Class

would like to thank the following individuals for their contributions...

• NAVO Machine Shop Staff (Stefan & Charles)• Mike Jeffries and the Pearl River Dive Team• Scotty & Billy Davidson for support• University of Mississippi• David Dodd‘s purchase card…