ACTION / Bergsdalen — revision 49, 2026-10-11

Reference: https://www.youtube.com/watch?v=4HmzRrx_jT4
Title observed in YouTube: JAS-39D In War Thunder : A Basic Review, Tim's Variety War Thunder.
Visual reference: rocky valley landscape, close external chase view, flight telemetry and target cues. No video, terrain, HUD code, textures or other War Thunder assets were copied. This is an independently authored procedural arcade arena, not a geographic reconstruction or historical mission.

DCS mod examined:
https://forum.dcs.world/topic/267204-jas-39c-gripen-community-mod/
https://github.com/whisky-actual/Community-JAS-39-C
The public repository tree contained EDM exterior/cockpit models; no LICENSE/licence/copyright file or Blender/FBX source was found in the complete Master tree checked on this date. Forum page was blocked by a security check. User explicitly confirmed on 2026-10-11 that the authors granted permission to use the mod in this project. Permission is user-reported; no public licence is inferred. Exterior EDM downloaded to source/dcs-gripen for conversion assessment. The runtime currently retains the existing project Gripen pending successful geometry/material conversion.

Gameplay: unlimited stores and fuel; no health/death; terrain clearance protection and arena return. Abstract targets, assisted trajectories, replenishing waves and score. No real weapon performance model. Terrain, trees, buildings and target meshes authored in viewer/action.js. Coordinates used internally are render anchors; UI labels the arena as fictional.

Conversion test: EDM v10 exterior file was read with the experimental ndevenish Blender_ioEDM parser in Blender 5.2.1. Parsing failed in the material table at byte 2227 (KeyError model::RootNode), before usable geometry. Full original and test log are retained locally in source/dcs-gripen. A compatible importer or author-provided Blender/FBX export is still needed.

Revision 51 — DCS action aircraft and cockpit
Community JAS-39-C v1.8.5-Beta, published 1 April 2023:
https://github.com/whisky-actual/Community-JAS-39-C/releases/tag/v1.8.5-Beta
The exterior EDM and four used texture archives match the previous Master downloads byte-for-byte. The separate detailed cockpit EDM is now used in action-mode first-person view. Asset use is based on the user's reported author permission; the aircraft is not relicensed under the MIT importer licence or the legacy aircraft GPL licence.
Patched converter: https://github.com/devozdemirhasancan/DCS-EDM-Blender-Importer (MIT).
Fifteen native argument clips exported; browser controls are approximate. Cockpit knobs are visual geometry; the browser's own simulated avionics remain in use.
Visual reference: https://www.youtube.com/watch?v=vuBQjE7Gazk (cockpit at 7:53, 11:50), and the existing War Thunder reference (plume at 4:45, 6:39). Simulator imagery, not measured physical data. Native grey 04/SwAF-289 livery selected by the user.
