



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

ACOUSTIC "EARS"

BEFORE RADAR – GERMAN

ACOUSTIC "EARS"

BEFORE RADAR – ON WHEELS

ACOUSTIC "EARS"

BEFORE RADAR – ENGLAND