How incoming enemy aircraft were detected before the advent of radar ???...wow truly

[sam@]

STRANGE ACOUSTIC "EARS"
BEFORE RADAR - ON A SWIVEL









STRANGE ACOUSTIC "EARS"
BEFORE RADAR - GERMAN




STRANGE ACOUSTIC "EARS"
BEFORE RADAR - ON WHEELS





STRANGE ACOUSTIC "EARS"

BEFORE RADAR - ENGLAND

 

[ac2000]

nice post

 

[Teena@]

Nice Post...

 

[Tissaka]

he he.. patta.. thanks for the post.

 

[sam@]

nice post

Nice Post...

he he.. patta.. thanks for the post.

Okkotama sththi kiwa....

 

[rith]

ela

 

[88gee]

maara scene eka .. isara kale mehemada hewwe

 

[sam@]

ela

maara scene eka .. isara kale mehemada hewwe

thanks to u...

 

[walkernet]

Sry bro yhis is a repost.

 

[n_ayeshmantha]

awesome post

 

[himalaka]

nice post machan...rep+

 

[Zeus]

Nice post bro
+3 for the post and not begging for repz

 

[yasasrd]

good post

 

[Hiranchandima]

very good post
thnx for sharing

 

[ruwanwellarocker]

gud work

 

[HareendraS]

nice post macho
thnx 4 sharing
rep+

 

[eshan91]

whaw...nice

 

[sachithmax]

apo chater neee...henayak ehema wadunoth aruge...kan kalu wenawa nee?

 

[hkapugamage]

nice post

 

[sam@]

nice post machan...rep+

Thanks machan....

Nice post bro
+3 for the post and not begging for repz

yep machan.i always like that..thanks for u...bro...i'll keep that...

good post

thanks yar....

very good post
thnx for sharing

plzer machan....

gud work

thanks ur rep... bro...

nice post macho
thnx 4 sharing
rep+

plzer machan...

whaw...nice

thanks...

apo chater neee...henayak ehema wadunoth aruge...kan kalu wenawa nee?

aniwa...polawata unwath earth karala tiyenne...
thanks bro....

nice post

thanks bro...