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In this video, we take you inside **Regelbau L487 “Bertha”**, a massive WWII Luftwaffe command & radio evaluation bunker used for night fighter control. Built in 1945 as part of the Atlantic Wall’s Luftwaffe network, it played a role in radio measurement evaluations and communications for all-weather/night interception. --- ### What you’ll see - Full walkthrough of the bunker: exterior, interior two floors, radio/evaluation rooms, command areas. - Detailed look at architecture: reinforced concrete structure, layout, height, length, width. - Technical & historical background: how night fighter control worked, what “radio measurement device evaluation” means, how communications were handled. - Role of Regelbau L487 in Luftwaffe operations in 1945, and its place in the Atlantic Wall system. - Condition today: what remains, what has survived, what visitors can still see. --- ### ℹ️ More info - **Regelbau** = German standardised bunker classification; L487 is specific to Luftwaffe “Bertha” commands for night fighting. :contentReference[oaicite:5]{index=5} - Dimensions: ~22.10 m × 22.90 m × 8.60 m, two floors. :contentReference[oaicite:6]{index=6} - Built around 1945. Communications, evaluation & measurement bunker. :contentReference[oaicite:7]{index=7} - Several examples exist in Denmark and potentially other parts of the Atlantic Wall region. :contentReference[oaicite:8]{index=8} --- If you enjoy detailed bunker tours, WWII history, or Luftwaffe architecture, be sure to **like**, **subscribe**, and hit the bell so you don’t miss the next exploration. --- ## 🔖 Hashtags #RegelbauL487 #Bertha #AtlanticWall #Luftwaffe #NightFighter #WWII #BunkerTour #CommandBunker #RadioBunker #WW2History #GermanBunkers #BunkerExploration #CentreControl #CommunicationsBunker