| June 04, 2009 |
Location: Hurricane Bay (Tahoe), CA Dive Plan: The Planned Max depth was to be 150 -160 feet with our Maximum Average Depth to be 130' with a 30 - 40 minute bottom time at depth and a total run time of 80 - 90 minutes. Mission Objective: Training dive to practice descending a steep slope utilizing scooters and managing multiple decompression gasses, team scootering and enjoying a fun afternoon technical dive. Planned Dive Assets: 200 cubic foot + dual tank back-gas rig w/ 21/35 ( Oxygen/Helium content). Two decompression gasses - 50% Oxygen in our 70 Bottle and 100% Oxygen in our 20 Bottle. Drysuit, Scooter, 18 - 21 watt canister light, Argon drysuit inflation system. Actual Dive Statistics: 164' / 34 minutes / 117' Maximum Average Depth / 87 minutes total run time / 67' Average Depth / Water Temp - 41 degrees at depth to 58 degrees at 20' |
| June 13, 2009 |
Location: Bliss State Park (Tahoe), CA Dive Plan: The Planned Max depth was to be 300-325 feet with our Maximum Average Depth to be 250' with a 20 minute bottom time at depth and a total run time of 110 - 120 minutes. Mission Objective: Training dive to practice the use of a travel gas along with multiple decompression gasses, team scootering, bottle handling at depth and water condition evaluation at depths below 250 feet. Planned Dive Assets: 200 cubic foot + dual tank back-gas rig and an Aluminum 80 (A80) travel tank carried under our left arm w/ 15/55 ( Oxygen/Helium content). Two decompression gasses - 50% Oxygen in our 70 Bottle and 100% Oxygen in our 20 Bottle. Drysuit, Scooter, 18 - 21 watt canister light, Argon drysuit inflation system. Actual Dive Statistics: 315' / 20 minutes / 235' Maximum Average Depth / 107 minutes total run time / 76' Average Depth / Water Temp - 41 degrees at depth to 58 degrees at 20' |
| June 20, 2009 |
Location: Glenbrook Bay, Nevada - SS Tahoe Site Dive Plan: Expedtion Team - Planned Max depth was to be 300-325 feet with our Maximum Average Depth (MAD) to be 250' with a 20 minute bottom time at depth, deco of 70 to 90 and a total run time of 110 - 120 minutes. Support Divers - Planned Max Depth was 100 fee, with a MAD of 50, utilizing 32% so Minimum Deco Procedures would be executed. Mission Objective: Marker line and navigational aid assessment on the path to the SS Tahoe. Necessary as there was a sub operation that may have compromised our bottom markers so we needed to establish consistency. The markers had been disturbed at the 150' depth to the 200' depth so we will need to return to repair. Our training dive was multiple as there were two teams diving, Team One along the bottom toward the Tahoe to 300 - 325 feet utilizing 3 deco gasses, (A80 120, A80 70 and A40 20) and handling those bottles throughout the dive along with scootering and camera handling (camera mount was completed) as the new Gates housing was mounted to the Cuda scooter for the first time. Team Two, was to work on team and environmental assessment along with assessment of our inside bottom markers. Planned Dive Assets: Team One - 200 cubic foot dual tank back-gas rig w/ 10/70 ( oxygen/helium content). Three decompression gasses - 32% (Will be 34/25 for all future dives) in our 120 bottle, 50% ( Will be 50/25 for all future dives) oxygen in our 70 Bottle and 100% oxygen in our 20 Bottle. Drysuit, Scooter, 18 - 21 watt canister light, argon drysuit inflation system, Gates housing, HID lighting system. Team Two, 170 cubic feet of back-gas at 32% canister lights, argon inflation system. Actual Dive Statistics: Team One - 318' / 12 minutes / 207' Maximum Average Depth / 106 minutes total run time / 78' Average Depth. Team Two - 47 MAD / 65 min total run time. Water Temp - 41 degrees at depth to 58 degrees at 20'. Remarks/Observations - From the deep team perspective, scootering and filming, while carrying 3 additional tanks is quite cumbersome and slows the progress to the site. The visibility was exceptional as the algae bloom seems to have dissapated somewhat as we had much ambient light at 318. We placed marker flags at 250 and 310 but will need additional reference points placed. We were less than 100 linear feet from the Tahoe and only 30 feet above her. With a few more dives utilizing the camera & lighting system along with establishing some additional support in Glenbrook, we will be able to visit her in August. |
| August 15, 2009 |
Location: Glenbrook Bay, Nevada - SS Tahoe Site Today, after several training dives in the 150 – 200’ range over the past several weeks, James and Martin had the opportunity to further push out along the path towards the SS Tahoe establishing all the deco drop points from 300’ in. The “Adventure Trail so to say is now ready. We have placed small augers with line loops at 300, 240, 190 and 120, the steepest part of our journey so that we can stage our decompression bottles at theses locations rather than carry multiple bottles. We had some difficulty at 300’ securing the auger as we would like but plan to do one more dive along this path and double check everything before we make our first SS Tahoe Dive now scheduled for September 12th and 13th. Today we were supported by divers Marc Briseno and Merlin Rhoda at the 120’ – 70’ range. They traveled with us during our 120 deco and maintained support until after we dropped our 190 and 120 bottles and secured our 70 and 20 bottles at 70 feet where it is very flat and workable. Once we finished our 8 minutes at 70 feet, Marc and Merlin remained to clean up and James and Martin continued along the path toward the shallow water of |
