Il-Widna

Il-Widna is a large acoustic mirror located in Magħtab, Malta.

[2] The mirror was used during the Axis bombardment of Malta during the Second World war to detect incoming Luftwaffe (1941-1942) and Regia Aeronautica (1940-1941)[3] bombers seeking to airstrike Malta.

[4] Il-Widna faces towards the island of Sicily, in Italy at a bearing of around 20 degrees.

Tests making use of a flying boat found that the range of the mirror was around 25 miles (40 km).

It was estimated that the mirror would provide a six minute warning of an enemy aircraft approaching Malta at 250 miles per hour (220 kn).