Event details
| Voyage: | IN2020_V01 [details] |
| When: | 2020-02-12 14:49:08 UTC - entered into Elog/Everlog as 2020-02-12 14:49:08 |
| Log: | Updated Dredge in2020_v01 |
| Equipment: | Not specified |
| Position: |
Latitude: -52.82467 Longitude: 79.48017
- entered into Elog as 52 49.48 S, 79 28.81 E |
| Dredge Number: | D13 |
| Wind Direction (deg): | 349 |
| Planned Heading (deg): | 220 |
| Break of Slope (deg): | 075 |
| Current Velocity (m/min): | 240 |
| Current Direction (deg): | 356 |
| Speed Through Water Average (WP1 to WP2): | 1.6 |
| Speed Over Ground Average (WP2 to Retrival Start/WP3): | 0.7 |
| Run-in Factor: | 0.8 |
| Distance Deployment (WP1) to WP2 (WP2 depth * run-in factor): | 976.00 |
| Ellipsoidal Distance: | 677 |
| Rise/Run ( (WP2 depth - WP3 depth)/Ellipsoidal) ): | 0.81 |
| Target Wire Factor: | 1.2 |
| WP2 Target Scope (WP2 Depth * Wire Factor): | 1464.00 |
| Actual wireout at dredge retrival (WP3) start: | 652 |
| Ship speed at retrival (knots): | 0.5 |
| Ship speed at retrival (m/min): | 15.43 |
| Retrival Wire Speed (m/min): | 60 |
| Tension Max (Tonnes): | 10 |
| Hung Up: | Yes |
| Overall Operation Rating: | 7 |
| Completion Time: | 21 |
| Attachment: | 200212_171410_D13_grafana_atsurface.jpg |
| Dredge in water at utc 14: | 49 (79.48,-52.82) - water depth 1410m, begin paying out 60m/min |
| Dredge on bottom utc 15: | 15 wire out 1420m (79.464,-52.834) ship water depth 615m |
| Ship heading changed to 300 at end of pay-out/start of haul-in; utc 15: | 31 start haul in from 10 to 15 m/min |
| spikes: | 52; |
| Dredge off bottom at 16: | 57 wire out 652m. |
| Dredge at surface at 17: | 11 (79.464, -52.833). |
| Dredge on deck at 17: | 21. Haul of 1/3 dredge chain bag. |
| Comments: | Dredge in water at utc 14:49 (79.48,-52.82) - water depth 1410m, begin paying out 60m/min Dredge on bottom utc 15:15 wire out 1420m (79.464,-52.834) ship water depth 615m Ship heading changed to 300 at end of pay-out/start of haul-in; utc 15:31 start haul in from 10 to 15 m/min Current velocity 0.2 knts at 356 spikes: 3t at UTC 15:19 (dredge dragged along bottom?); 10t at 15:25; 4t at 15:36; 6+t at 15:38; 10t at 15:40; 7t at 15:43; 6t at 15:46; 5t at 15:48; 5t at 15:50; 5t at 15:54; 5t at 15:56; 9t at 15:58; 10t at 15:59 - hook-up at 15:59 spike up to 9.9t; umhooked at 16:08; 5t at 16:11; 7t at 16:12; 9.9t at 16:14 - hookup (wire out about 930m); unhooked at 16:29 (wire out back to 930m); 7-8t spikes at 16:31; 9t at 16:32; 5t at 16:37; 9+t at 16:39 - hookup; unhooked at 16:52; Dredge off bottom at 16:53; wire out 717m (79.463,-52.833). Haul in (30 m/min) started at 16:57 wire out 652m. Dredge at surface at 17:11 (79.464, -52.833). Dredge on deck at 17:21. Haul of 1/3 dredge chain bag. |