Above is a picture of a two-horn acoustic location system at Bolling Field, USA, in 1921.
Read more about Acoustic Location and Sound Mirrors.
Listening to planes
Info Post
In the early years of flying, before they invented the radar as we know it, detecting planes from the distance could be a real bitch sometimes. The army used all kinds of acoustic location devices.
Above is a picture of a two-horn acoustic location system at Bolling Field, USA, in 1921.
Read more about Acoustic Location and Sound Mirrors.
Above is a picture of a two-horn acoustic location system at Bolling Field, USA, in 1921.
Read more about Acoustic Location and Sound Mirrors.
0 comments:
Post a Comment