The W88 Alt 370 program is an update of the W88 warhead design, which was first deployed in 1988 and is currently deployed on Ohio-class submarines.. The Alt 370 modernization ensures the guarantee of proper activation of the W88/Mk5 strategic warhead due to aging.

/ DoE. The W88/Mk5 .... Aug 2021 — The W88 Alt 370 to modernize the warhead primarily included an updated AF&F assembly and a refresh of the conventional high .... ...

warhead and reentry system as well as the Next Nuclear Warhead (NNW) to life extend or replace the W88-0/Mk5 ALT 370 system. Ultimately, all of these ....

The W88 Alt 370 is a crucial part of Nation's strategy for the sea-based leg of the nuclear triad, and a testament to the Enterprise's ability to execute major ....