Sling Savvy Navy Petty Officer 1st Class David Sweza attaches a two-inch shackle to a high-performance cargo sling during crane operator training aboard the USNS Dahl in Saipan Harbor, Sept. 10, 2019. SHARE IMAGE: Download Image: Full Size (1.42 MB) Tags: navy Photo By: Navy 1st Class John Philip Wagner Jr. VIRIN: 190910-N-TP834-1070Y.JPG Photo Gallery