Present:  Scott, Brent, Doug, Jim, Gene

Absent:  Chris S., Cheri, Addie, Wayne

Machine Builds

MFB

Drifter

• Pre-Flyer cruise dive days on the Zephyr have been pushed back to May 26 and May 28
• Gene will be in Test Tank Monday/Tuesday
• Ordering radar reflector.  Have blinky light.  PPP is running via wire.  Scott will set-up Freewave's
• If time, will pull Iridium off an existing surface mooring and mount on Drifter.

Software

• Brent's been working on HP pump.  It seems to run either full on or off.  Difficult to run it at other than 2000rpm.  He has a was to work servo control with this constraint.
• Next is to characterize the differential pressure sensors then
• run sample fluid through the core loop
• Noticed that TSV seems to get off by 7-9 counts when you power cycle. Scott will watch while they try and re-create.
• Discussion about making the laptop on the boat a 'slave' to the shorestation, so missions can be started right on the boat (boat laptop-> shore station->ESP buoy) instead of having to rely on someone on the shore.

Deep ESP

• Will talk to Science about needs for a metal wand to withstand high temperatures at Axial.  Otherwise, with current design, the end of the 'wand' is actually a solenoid valve.
• Doug showed valve design to Brent and explained function.
• Must get Science buy-in about wand idea, but in the meantime we will push forward with this design.

GUI

Deployment Issues

• Two potential sites to visit in June:
• #1.  2900m [36.61N, 122.44W].  Flat, open, clear water.  Nearby clam-field.
• #2.  1800m [36.71N, 122.1W].  Flat, poorer visibility.  very old whale-fall.
• Much discussion of which site.  Consensus was that August cruise is most critical (depths of 1400-1600m), thus site #2 would provide adequate testing for August without undue risk.  
• A very rough deployment schedule was discussed.  Leave MBARI @ 11am on Friday, June 5, return Tuesday, June 9.  Chris and I will meet with ship crew 10am (Tank View) Tuesday to discuss.
• 4K ISUS mtg Tuesday @ 11--Tank View.  Will meet with Luke, John R., and science.

Other Items: