Lockheed Martin Reports Mk21A Reentry Vehicle Flight Test
Lockheed Martin and the U.S. Air Force completed a flight test of the developmental Mk21A reentry vehicle, the company said on November 3, 2026.
FlyMarshall Newsroom1 min read
Photo: Lockheed Martin
The unarmed, developmental Mk21A launched from Vandenberg Space Force Base in California and flew over the Pacific Ocean, Lockheed Martin said. The company is developing the vehicle for a future U.S. intercontinental ballistic missile system.
Key details
- Lockheed Martin describes the Mk21A as an integrated reentry vehicle and an upgrade to the legacy Mk21.
- The company says the flight test demonstrated the vehicle architecture and validated reentry technologies.
- Lockheed Martin says the program operates under a prime military contract valued at more than $1 billion.
Lockheed Martin says the Mk21A program operates under a prime military contract valued at more than $1 billion.
Why it matters
The Mk21A forms part of a future U.S. intercontinental ballistic missile system. Lockheed Martin says the design builds on the legacy Mk21 and incorporates reentry technologies intended for the future system.
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