. CEL 10K propellant-actuated anchor. Anchors; Anchorage; Marine engineering; Civil engineering. PROJECTED BALLISTIC PERFORMANCE The Naval Ordnance Station, Indian Head, Maryland, selected smoke- less propellant (M6) with ( mm) web thickness (material thickness between perforations) as the most suitable propellant for the 10K anchor.* This was based on desired performance criteria of: (1) max- imum operating pressure of 50,000 psi (345 MPa), (2) maximum acceleration of 2,000 g's, and (3) minimum projectile velocity of 250 fps (76 mps). A computer program for simulation of prope
. CEL 10K propellant-actuated anchor. Anchors; Anchorage; Marine engineering; Civil engineering. PROJECTED BALLISTIC PERFORMANCE The Naval Ordnance Station, Indian Head, Maryland, selected smoke- less propellant (M6) with ( mm) web thickness (material thickness between perforations) as the most suitable propellant for the 10K anchor.* This was based on desired performance criteria of: (1) max- imum operating pressure of 50,000 psi (345 MPa), (2) maximum acceleration of 2,000 g's, and (3) minimum projectile velocity of 250 fps (76 mps). A computer program for simulation of propellant-actuated anchor performance was used to predict the 10K anchor ballistics at a range of depths and charge weights. The results of the simulation are presented graphically in Figures 6, 7, and 8. Using the plots (Figures 6 and 7) of projectile velocity versus water depth for each projectile, charge weight for peak performance (Figure 8) was determined with the limiting condition of 2,000 g's acceleration for the 1 x 2-foot (31 x 61-cm) fluke and 50,000 psi (345 MPa) for the 2 x 2-foot (61 x 61-cm) fluke. These charge weights are practically similar for both flukes. It appears that a fluke larger than the 2 x 2-foot (61 x 61-cm) fluke could be effectively used with this gun system to improve anticipated performance in clay seafloors. Once the system is used more, this decision can be made more reliably. Projectile Velocity (FPS). Figure 6. Projectile velocity versus water depth for the GEL 10K anchor at various charge weights. The projectile used is the 173-pound, 2 x 2-foot fluke; the propellant is M6, web. * J. H. Holden (1975). Technical Report IHTR 438: Propulsion system development for a 10,000-pound capacity embedment anchor. Naval Ordnance Station, Indian Head, MD. 8. 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 perfectl
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