Diving Helmet (Mark V)
MK V Diving Helmet of the U.S. Naval Undersea Museum. The MK V’s iconic copper helmet has made it the best known and most recognizable of the Navy’s diving systems. The Navy used the MK V helmet and diving rig from 1916 and 1984 for salvage and deep sea work.…

JIM Suit
JIM Suit of the U.S. Naval Undersea Museum. Treasure hunters developed early atmospheric diving suits (ADS) to dive on shipwrecks. Commercial diving and oil drilling industries resurrected ADS in the 1960s. The JIM suit, named for test diver Jim Jarrett, was…

Kaiten Type 1 (Version 2)
Kaiten were manned torpedo submersible craft deployed for action by the Imperial Japanese Navy in 1944-45 against enemy ships. This vessel is a cut open Type 1 Kaiten on display at the United States Naval Undersea Museum in Keyport, Washington.

Miller-Dunn Divinhood Helmet
Navy divers used this open-bottom Miller-Dunn Divinhood Style 3 helmet during World War II to complete ship and equipment repairs in water less than 60 feet deep. Compared to cumbersome closed systems like the Mark V, open helmets were light and simple to…

Trident I Missile Payload Station
Trident I Missile Payload Station of the US Naval Undersea Museum. This is the top portion of a 34-foot Trident I (C4) missile. A Trident I can hold up to eight warheads called multiple independently targeted re-entry vehicles (MIRVs). This one is outfitted…