Junk (ship) Junk (ship) Junk is a type of ancient Chinese sailing ship that is still in use today. Junks were used as seagoing vessels as early as the 2nd century AD and developed rapidly during the Song dynasty (960–1279). They evolved in the later dynasties, and were used throughout Asia for extensive ocean voyages. They were found, and in lesser numbers are still found, throughout South-East Asia and India, but primarily in China. Found more broadly today is a growing number of modern recreational junk-rigged sailboats. The term "junk" may be used to cover many kinds of boat—ocean-going, cargo-carrying, pleasure boats,
Navy lighterage pontoon wedge pins. The flotation blocks came in two types: The principal type of unit was a rectangular prism; the majority of NLPs were constructed using these. The second type was similar but curved upward on one side, and these boxes were used to make bows on the front of NLP barges when required. Navy lighterage pontoon The Navy Lighterage pontoon (NLP) was a type of pontoon developed in World War II by the US Navy and used by naval construction teams (Seabees) and specialized US Army combat engineers, on invasion beaches and shallow harbors or harbors where the facilities had