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Ken Buessler and Jim Valdes using a crossbow with a grapple to recover an NBST.

Ken Buessler and Jim Valdes using a crossbow with a grapple to recover an NBST.
Ken Buessler and Jim Valdes using a crossbow with a grapple to recover an NBST.
Ken Buessler and Jim Valdes using a crossbow with a grapple to recover an NBST.
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525164
Walker, Carolyn
Ken Buessler and Jim Valdes using a crossbow with a grapple to recover an NBST.
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07/31/2005
buesselerNBST2_C.jpg
Date is approximate.
Caption from Oceanus magazine, Vol. 45, No. 2, Pg. 15:
...During daylight, it’s difficult to see small submerged objects in the water, so recoveries are made at night, when the crew can spot an NBST ’s flashing light up to 2 nautical miles (3.7 kilometers) away in good conditions. The crew shines a spotlight on it (left) and maneuvers the big research ship within yards of the NBST . The scientists use a crossbow (bottom left) to shoot a line with a grappling hook to reel in the instrument. “So the crossbow became standard equipment,” Valdes said. “But it’s not a carry-on item,” he said with a smile. “You ship them in advance, so you don’t get stopped at Customs.”
Photo by Carolyn Walker, BBSR
Copyright © Woods Hole Oceanographic Institution
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