The Mark 21 nuclear bomb was a United States thermonuclear gravity bomb first produced in 1955. It was based on the TX 21 "Shrimp" prototype that had been detonated during the …

The W87 is an American thermonuclear missile warhead formerly deployed on the LGM-118A Peacekeeper ("MX") ICBM. 50 MX missiles were built, each carrying up to 10 W87 warheads …

Mk21A is an integrated reentry vehicle (RV) being designed to deploy the W87-1 warhead for the U.S. Air Force’s future Sentinel ICBM. It is an adaptation of the Mk21 reentry vehicle. The …

Oct 31, 2023 · WASHINGTON — Lockheed Martin has been awarded nearly $1 billion to develop a new reentry vehicle for the LGM-35A Sentinel intercontinental ballistic missile (ICBM), the …

The Intercontinental Ballistic Missile Fuze Modernization (ICBM Fuze Mod) Program is providing a replacement Arming and Fuzing Assembly (AFA) for the Mk21/W87 Reentry Vehicle/Warhead.

5"/38 MK 30, a variant of the 5-inch/38-caliber gun; Beaufighter Mark 21, a variant of the Bristol Beaufighter; Mk 21 (type 356), a variant of the Supermarine Spitfire (Griffon-powered …

Jun 18, 2024 · An unarmed Mk21A reentry vehicle was launched late June 17 at Vandenberg Space Force Base, Calif. Mounted on a Minotaur I rocket, it flew over the Pacific Ocean, …

Apr 18, 2024 · Sandia and the Kansas City National Security Campus completed a crucial weapons component development milestone, prior to full rate production. The Mark 21 …

Larger warhead W87-1 (W87 Mod. 1) does not exceed the stage of the development. The return module, the Mk-21 was developed by AVCO Systems division, and is also known as the …

Oct 31, 2023 · The Sentinel ground-based intercontinental ballistic system in development now to be deployed later this decade will incorporate a “low technical risk and affordable”, modified …