The former No.13 Group bunkers are still closed to the public. Their history is here to explore online.

The interactive images below re-imagine the lost fittings and layout of the bunker. Use the links at the bottom of the bubble image to move from room to room and explore inside the bubble worlds for clickable links that take you to additional content. Pan around by dragging your mouse whilst left-clicking or using the arrow-keys on your keyboard. You can zoom in and out using the plus (+) and minus keys(-). Hotspots or clickable links inside the bubble worlds are signalled when the mouse cursor moves over the active spot. The cursor will change shape and a label will show hinting at what content is available when clicking. To access the content just left click like any hyperlink.

A 3d realtime model is also available so you can walk around the operations room from corner to corner and explore every nook and cranny. The model is memory intensive and the minimum suggested system requirements are

• Windows XP or later; Mac OS X 10.5 or later.
• Pretty much any 3D graphics card, depending on complexity.
• A relatively up-to-date browser such as IE9 or IE10, Chrome, Firefox or Safari, among others.

On first loading the page users will be prompted to install the Unity Web Player to view files – http://unity3d.com/webplayer/ .Unity player adapts to suit the hardware platform. For instance, shadows will not display on older hardware.

If you would like to experience an an RAF WWII operations room in the flesh then the former Fighter Command No. 11 Group bunker is open to the public. It is based in Uxbridge. For more information visit: http://www.raf.mod.uk/battleofbritainbunker/