The UGM-73 Poseidon missile was the second US Navy nuclear-armed submarine-launched ballistic missile system, powered by a two-stage solid-fuel rocket. It succeeded the UGM-27 Polaris beginning in 197
A Poseidon missile lifts off after being launched from the submerged USS Ulysses S. Grant (SSBN-631) in May 1979
The Mark 3 Reentry Body (RB) that would contain the W68 warhead carried by Poseidon.
Mark 3 with objects for scale.
Poseidon missile on display at the USS Bowfin Submarine Museum & Park.