Aircraft Detection Before Radar
Aircraft Detection Before Radar
I bet none of you ever saw this stuff before.
How air attacks were detected before radar
Old time
acoustic hearing aids
ACOUSTIC "EARS"
BEFORE RADAR ON A SWIVEL
BEFORE RADAR ON A SWIVEL
ACOUSTIC "EARS"
BEFORE RADAR GERMAN
BEFORE RADAR GERMAN
ACOUSTIC "EARS"
BEFORE RADAR ON WHEELS
BEFORE RADAR ON WHEELS
ACOUSTIC "EARS"
BEFORE RADAR ENGLAND
BEFORE RADAR ENGLAND