I have posted some of Watson's comments from his report, might help for those that know the area.
"This morning, the Sea Shepherd crew searched the waters around Franklin Island. There is a remote
possibility that the Berserk
could have been forced northward by the storm"
Sea Shepherd discovered that the EPIRB
(emergency beacon) was inside the vessel. It was designed to issue a distress
signal for 24 hours but only transmitted for 45 minutes. It was designed to transmit from a depth
of 10 meters and be manually activated. The device was not found. This could mean the device was activated from inside a sinking vessel and stopped transmitting after the vessel sank beneath 10 meters of water
. This evidence suggests that the Berserk
sank at the position where the distress
signal was issued, and that it sank rapidly without the possibility for the crew to escape. The combination of heavy seas, 155-kilometer winds, negative 50 degree Celsius temperatures, deadly ice growlers, and a steel
hulled vessel all contributed to this tragedy."
Time the search began:
0700 hours (NZT), February 24th
Total time of land and sea search by the Steve Irwin:
52 Hours up until 1100 hours February 26th
Helicopter hours flown:
21 hours total, average of 2.4 hours per flight
1550 nautical miles at an average of 80 knots.
Square miles searched:
3600 nautical miles.
Search area details:
From the discovery of the life raft lost
by the HMNZS Wellington,
to Cape Bird, along the coast to Tryggve Point, and back. Then all of McMurdo Sound from Backyard Bay and Inaccessible, north to Cape Bird, including off the coast from Cape Royds to Cape Bird. Then all the way from Cape Bird to Geiki Bay in excellent search conditions – searching a wide band along the ice edge. From there, due east 20 nautical miles and south back to the vessel. Then a corridor flight parallel to the Steve Irwin
in an area west of Beaufort
Island where the life raft was discovered, and northward a further 40 nautical miles. Then a search from the point where the Berserk
lifeboat was discovered and northward a further 40 nautical miles. The helicopter then searched a track between the lifeboat position and Bird Point. Debris from the lifeboat was found near Horseshoe Bay. The helicopter did a transit near Franklin Island and searched the shallow waters around the island. Finally a northward run up to the 166 E Longitude line near the Ross Sea western shore.