John Holland (submarine designer)

John Holland was an influential American engineer and naval architect known for designing and building submarines in the early 20th century. He played a key role in developing submarines that were technically advanced for their time, contributing to the United States Navy's capabilities. His innovations included improvements in submarine hull design, propulsion, and safety systems, enabling these vessels to operate effectively underwater. Holland's work helped shape modern submarine technology, making underwater vessels more reliable, stealthy, and effective for military use. His legacy is rooted in advancing submarine engineering and establishing standards for future underwater craft.