Originally Posted by
Genghis the Engineer
I stand corrected, Gotha, and 1920s. Still bloody fascinating things however...
Denge sound mirrors | Sound Mirrors
The technology is WW1 so far as I understand it, and I think that a lot of the infrastructure and lessons in its use were passed over to the early radar systems.
G
My excuse is the article I read was about 30 years ago (Aeroplane Monthly?) and didn't mention anything about research starting so early, let alone the other sites in the UK where it was tried!
(Could have been tried on the Blackburn Botha though; nobody seemed to have much use for it otherwise.)
I've driven past the one on Malta back in 1991 and never knew it was there!