. Commercial fisheries review. Fisheries; Fish trade. Fig. 3 - Cessna-180 used during tuna survey. the Undaunted March 26 to April 1, and from the Geronimo, April 2 to 14. During these two periods, the transect lines were spaced at 15- to 20-mile intervals. A Cessna-180 aircraft was operated along with the Undaunted from February 26 to March 28 (fig. 3.). The plane was flown in a pattern used for search and rescue work (U. S. Coast Guard, 1963) (fig. 4). While the vessel sailed a straight track, the plane flew along a parallel track pattern perpendicular to the vessel's. The lengths of the pla
. Commercial fisheries review. Fisheries; Fish trade. Fig. 3 - Cessna-180 used during tuna survey. the Undaunted March 26 to April 1, and from the Geronimo, April 2 to 14. During these two periods, the transect lines were spaced at 15- to 20-mile intervals. A Cessna-180 aircraft was operated along with the Undaunted from February 26 to March 28 (fig. 3.). The plane was flown in a pattern used for search and rescue work (U. S. Coast Guard, 1963) (fig. 4). While the vessel sailed a straight track, the plane flew along a parallel track pattern perpendicular to the vessel's. The lengths of the plane's transect lines were adjusted so that the plane crossed above the vessel at approximately j-hour intervals. At average speeds of 10 knots for the vessel and 97 knots for the plane, it proved practical to fly 15 minutes (24,2 nautical miles) along the long leg of the flight pattern and minutes ( nautical. ST, VINCENT. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. National Marine Fisheries Service; U. S. Fish and Wildlife Service; United States. Bureau of Commericial Fisheries. [Washington] : National Marine Fisheries Service; [for sale by the Supt. of Docs. , U. S. Govt. Print. Off. ]
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