Defense Systems Digest

14 FEBRUARY 2023

Featured Technical Inquiry

Alternatives to Using Hexavalent Chromium Coatings

  The Defense Systems Information Analysis Center (DSIAC) received a technical inquiry about approved hexavalent chrome replacements for U.S. Department of Defense (DoD) applications.  DSIAC subject matter experts performed a study and identified several works that provide lengthy discussions about the available options.  In addition, they identified a National Aeronautics and Space Administration database that focuses on disseminating screening test results for hexavalent chrome-free coatings […]

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Carleton Knisely

Voice From the Community

Carleton Knisely

Flight Assessments Lead

Carleton Knisely is the Flight Assessments Lead for the Flight Performance Integration Project and the NA-115 Delivery Environments Portfolio Lead at Lawrence Livermore National Laboratory. Carleton and his team use various aerodynamic, aerothermal, and flight dynamics modeling/simulation tools to characterize the in-flight environments of vehicles at hypersonic speeds with a particular emphasis on the implications for the payload. Prior to his time at LLNL, Carleton received his PhD from UCLA, where he studied real-gas effects on hypersonic boundary layer transition with support from DoD grants (US Air Force & Navy) and the NDSEG Fellowship.

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Featured News

New Graduate Certificate in Hypersonic Flight

The U.S. Air Force Institute of Technology’s Department of Aeronautics and Astronautics now offers a graduate certificate program in hypersonic flight. The field of hypersonics has emerged as a technical discipline that is critical to ensure the United States will be able to fight and win future conflicts. The graduate certificate in hypersonic flight is specifically designed to produce technical professionals who can understand, evaluate, […]

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Recent News

Star Power: Blazing the Path to Fusion Ignition

It was the middle of the night on December 5, 2022, and anticipation was building among the handful of researchers and technicians in the National Ignition Facility (NIF) control room. A set of pre-shot simulations had…

U.S. Department of Defense to Prototype Commercial Batteries to Electrify Future Military Platforms

The speed at which the advanced battery sector is growing, along with the continued increase in commercial investments in energy storage, has resulted in significant EV battery maturation and technological advances. The U.S. Department of…

DoD Artificial Intelligence Agents Successfully Pilot Fighter Jet

A joint U.S. Department of Defense (DoD) team executed 12 flight tests in which artificial intelligence, or AI, agents piloted the X-62A Variable Stability In-Flight Simulator Test Aircraft, or VISTA, to perform advanced fighter maneuvers…

Protect Unmanned Surface Vessels in the Gray Zone

The U.S. Navy’s unmanned surface vessels (USVs) are proliferating across multiple areas of operation, participating in increasingly more elaborate tests, integrating with partner navies, and being tactically employed. However, recent incidents involving the seizure of…

Carderock Inventors Patent New Modeling Software

A team of engineers from the Naval Surface Warfare Center (NSWC), Carderock Division recently patented a new software modeling capability that digitally replicates the physics of underwater vehicles and towed bodies and tracks the movements…

New Additive Manufacturing Printer Enables Sailors to “Think Outside the Box”

Naval Sea Systems Command (NAVSEA) received complimentary reviews of a recently installed additive manufacturing (AM) 3-D printer on the Virginia-class attack submarine USS New Hampshire (SSN 778). The printer, a Markforged X7 field edition, is…

Upcoming Events

Threat Weapons & Effects 2023

The Joint Combat Assessment Team (JCAT) will host the 2023 Threat Weapons & Effects (TWE) Training at Hurlburt Air Force Base, FL, on 25-27 Apr 2023. This annual training event is a collaborative effort between…

Aircraft Combat Survivability Short Course 2023

This three-day short course in aircraft combat survivability is designed to provide an overview of the aircraft combat survivability discipline.  The course is intended for U.S. Department of Defense (DoD), active-duty military, and government contractors…

NSMMS & CRASTE Joint Symposia

NSMMS and CRASTE, two space-focused conferences, will colocate events for the 11th year. These colocated Symposia continue their outstanding legacy in bringing together technologists, users, and decision-makers from across the nation. Discussions involve key technology…

JASP Model Users Meeting (JMUM) 2023

Overview The 2023 Joint Aircraft Survivability Program (JASP) Model Users Meeting (JMUM) will take place the week of March 20th, 2023, at Georgia Tech Research Institute (GTRI) Conference Center, 250 14th Street NW, Atlanta, GA,…