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Named seats for U.S. Persons and approved entities. Eligible foreign persons only through an organization, under a program such as AUKUS, Five Eyes, or NATO, and only with the U.S. government approvals that program requires. Submitting a request does not grant a seat. Access Eligibility.

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How it works

A payload is a charge, case, and fragment description you model and then analyze. A setup is a named snapshot of the whole workbench: payloads, surrogate plate, scene, local-blast knobs, and class-example edits.

Physics tabs (Gurney, blast, THOR, EFP / SC, projectile pen, structural, local blast) plus Engagement (soft effects, fragment fly-out, hazard distances, effects), Target (a BRL-CAD-shaped solid per catalogue class, a parametric Pd study vs aspect and elevation, and height of burst vs standoff), Catalogue, Compare (add-on), and the Technical Data Packagetab read that state. An Examples tab — the same checks are public at Benchmarks — covers 155 mm M107, a 120 mm HE mortar, a Mk 82 500-lb GP bomb, and an M67 grenade against published envelopes and against fragment velocity, blast overpressure, area of effect, and plate perforation where a published number exists. Fragmentation on the 155 mm example is Mott–Linfoot on the AMCP scale versus the Åkesson arena; the M67 is a preformed pack, not Mott.

The hazard-distance names follow the RED, MSD and CDE concepts defined in FM 3-09.32 (Dec 2007): RED is the risk-estimate distance at 0.1% or 10% PI, MSD is the peacetime fragment danger distance, and danger close is a call-for-fire warning — not the same as either. CDE is collateral-damage estimation; the workbench also draws an engineering CDE contour at the furthest-reaching effect of the payload. Engineering estimate. Not a range-safety determination. Every distance is computed from the payload you described, not looked up from any published table, and range clearance remains the responsibility of the certifying authority.

The Technical Data Package tab can download a ZIP — geometry, drawings, JTCG/ME ZDATA, blast, penetration, hazard distances, the class solid, and Target Pd studies. The same add-on unlocks the Compare tab. Each pack is stamped with the signed-in email and the time it was generated, and carries the disclaimer on its cover. That download is a paid add-on with its own approval; the tabs are visible with the workbench, the ZIP and Compare runs are not. Use the tabs for weaponeering, targeteering, and effectiveness against ten generic class examples you calibrate, plus any rows you add. Component Pd on a solid is an engineering estimate, not an AJEM remaining-capability run and not a certified Pk.

Saving writes JSON to your account. Loading a setup from the dashboard injects it into the workbench. An account without an approved named seat can read Start Here; it cannot open the workbench or store snapshots, and no payment changes that. Where approval comes with an evaluation term, the workbench opens for that term and the Technical Data Package is not included.

Enterprise On-Prem is the same instrument under a site license. Setups stay on the machine. The application does not call this site. The installer is issued to entitled seats after a contract, with a SHA-256 on the Downloads page — not a public binary.

Models come from published open literature. Limits of use are on the Disclaimer; the bibliography is on Sources.