The SAS 'Blue Thunder' helicopter was spotted flying above the city of Birmingham, England. The secretive helicopter, which does not show up on flight apps as its transponder is usually switched off ...
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SAS 'Blue Thunder' helicopter spotted hovering thousands of feet above Birmingham, England
The SAS 'Blue Thunder' helicopter was spotted hovering high above the city of Birmingham, England. The secretive helicopter, which does not show up on flight apps as its transponder is usually ...
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