This application shows the challenges facing an operator at a Chain Home station during the Battle of Britain in 1940.
Mode selection lets you discover how different types of raid would appear on the tube, and how the operator finds each raid's data to pass on to Fighter Command. Test your skills with a series of incoming raids.
Receiver is a slightly simplified mock-up of the main operator's control panel. Use this to detect raids and enter readings into the electrical calculator.
Calculator illustrates the output from the electrical calculator that derives the position and height, and collates information for Fighter Command.
Map allows you to see how well your plots correspond with the actual raid positions. This of course would not have been available to the operator!
Each tab (other than this one) has a green ? button which will provide some explanation of the elements,
This has been tested satisfactorily on Safari, Chrome, Opera and Firefox browsers on MacOS X, and Chrome, Firefox and Microsoft Edge browsers on Windows 10. It does not work with Internet Explorer 10 on Windows 10. It also works on iPad with iOS 13.4 or higher; the iPad Mini will work but the screen is too small to use effectively. No other tablets have been tested; feedback would be welcome but there is no support.
- Application code written by Peter Ward.
- Historical research by Sharon Ward.
- The application is written in Elm (Copyright © 2012-2020 Evan Czaplicki, BSD-3-Clause license).