Load 9th August (would like to start on the 8th if the ship gets in early).
Sail 08:00 10th
Return 16:00 11th.
Unload 12th.

Area of operations: San Diego Trough, approximately 32 40' N, 117 35' W
Type of operation: Test of deep towed EM transmitter.

Equipment to be loaded:
Deeptow transmitter in tow frame, on main deck underneath A-frame. 4' x 8', 1,700 lbs
Antenna winch, on main deck forward of deeptow, 8' x 8', 3,500 lbs
Electrode rack, on main deck, 10' x 3', 600 lbs
Power supply, in any lab close to 3-phase power, 4' x 4', 1,600 lbs
Computers, controller box, acoustics, in any lab close to 12 kHz hull transducer and PDR, 500 lbs
'Flip winch' with 4 km 0.680" coaxial cable (26,000lb), with hydraulic power pack (??), main deck in line with A-frame sheave

Loading issues:
The installation of the Flip winch is obviously an important issue. This has been suggested as an easier alternative to re-spooling the .680 wire (fiber -> coax), and I need the short length any way to maximize power to the fish. I am told that there is a hydraulic power unit available to operate the winch; if not we need to supply ship's hydraulics. We would like to have the ability to operate this winch from a deep tow station in the main lab that is near the PDR.
We will need access to 3-phase power for the deeptow power supply, preferably 440 V, although we can use almost any input voltage. We will draw about 30 kVA. This need not be adjacent to the deep tow station in the main lab., since we can run a control cable between the power supply and the control box.

Cruise plan:
The objective is to operate the new deeptow at full power (30 kVA, 500 amps transmission current on a 200 m long antenna) for 24 hours.
We then want to make short tests of other electrode materials after the 24-hour test is done. Because time is short, we would like to deploy the deeptow on the way out to the operations area in the Trough, as soon as we are clear of other traffic and safety briefings have been conducted. Here is the anticipated list of events:
Push off and exit channel. Carry out safety briefings.
Cut ship speed to 3 kts. Deploy 200m antenna with copper electrodes straight over the fantail, under the stern rail.
Connect antenna to deeptow and test system for correct operation.
Take down stern rail and deploy deeptow, letting out 100m 0.680 cable. Replace stern rail.
Start 24-hour transmission tests while proceeding to operations area.
When in the deeper water (1000m) of the operations area, cut speed to 1.5 kts and let out more cable. Transit North and South along Trough making wide (1 mi) radius turns as needed.
After the 24-hour test, recover deeptow and antenna. Start transit back to Marfac.
Replace copper electrodes with experimental electrodes. Re-deploy antenna, but leave deeptow on deck.
Make brief transmission tests.
Recover all gear.

Safety issues:
There will be a coaxial cable running between the deeptow power supply and the Flip winch which will have 2000V/15A power on it.
This runs through a flexible conduit, which will be grounded, and the shield of the coax will also be grounded. Emergency stop buttons will be located on the power supply, on the control box, and any other areas where appropriate.