1. The central part of the fort - Redoubt (main battery) with a turret guns emplacements 2. Strongholds with infantry and gun positions. 3. Rifle rampart with machine-gun blockhouse.
A. Entanglement B. Underground tunnels C. Gun's emplacements
The central part of the fort - Redoubt 1. Turrets, 2. Ditch, 3. Underground premises - the powder magazine, shelter, etc., 4. Wire fences, 5. Caponiers, 6. Main entrance to the fort, 7. Bridge across the ditch. the scheme from the site of forthoytorp.com