. CEL 20K propellant-actuated anchor. Deep-sea moorings; Anchors. in-line/out-of-line plunger Figure 17. Nonordnance, reusable safe-and-arm device (S/A) for CEL 20K anchor. TEST RESULTS A summary of aii test data derived during this development is provided in Table 3 This table includes general site information, gun performance holding capacity, and penetration data where availa- ble. Holding capacity is subdivided into puUout and no pullout. No puUout means that either the anchor line (downhaul cable) parted before pullout (Test 17), the anchors were used in an actual installation and just pr
. CEL 20K propellant-actuated anchor. Deep-sea moorings; Anchors. in-line/out-of-line plunger Figure 17. Nonordnance, reusable safe-and-arm device (S/A) for CEL 20K anchor. TEST RESULTS A summary of aii test data derived during this development is provided in Table 3 This table includes general site information, gun performance holding capacity, and penetration data where availa- ble. Holding capacity is subdivided into puUout and no pullout. No puUout means that either the anchor line (downhaul cable) parted before pullout (Test 17), the anchors were used in an actual installation and just proof-tested (Tests 24 to 26), or the ship was incapable of pulling the anchors free (Tests 35 and 36). The last two tests were part of an amphibious operation, and load-measuring equipment was unavailable. During the initial stages of testing, reduced propellant charges were used until it w" determined that gun pressures were close to those predicted and that the fluke, which was not dynam- ically tpsted on land, was actually penetrating cor- recdy and was structurally sound. Test 11 was the first time a peak charge was used. Sediment Tests Even though the data are somewhat limited, it is sufficient to generally show that the anchor does work. As expected, the largest holding capacities were recorded in silty sand, sand, and stiff clay, with the lowest in soft clay. The capacities in sands were actually somewhat higher than expected; this has resulted in a larger downhaul cable (7/8-inch diameter vice 3/4-inch diameter) to fully utilize fluke capabilities in this medium. This larger cable was used during tests 35-36, and the anchors could not be dislodged from a sand seafloor. The loads, though unmeasured, must have been considerable, because the impetus of a Navy warping tug was used to generate the pullout force. Tests 1, 3, and 17 illus- trate the high capacities that can be achieved in a silty sand seafloor. Tests 1 and 3 were witii reduced charges (peak gun pressures w
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