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The BPI indicator dial seen on the wall of an underground ROC post during a training exercise
Bomb Power Indicator, also known by the acronym BPI, was an instrument built to detect nuclear explosions and measure the peak overpressure of their blast waves. It was used at the twenty five British Royal Observer Corps (ROC) controls and nearly 1,500 ROC underground monitoring posts, across the United Kingdom during the Cold War.[1]
^Lee-Frampton, Nick (1985). "Protect and survive". New Zealand International Review. 10 (2): 25–27. ISSN 0110-0262.
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BombPowerIndicator, also known by the acronym BPI, was an instrument built to detect nuclear explosions and measure the peak overpressure of their blast...
codeword attached by the Royal Observer Corps to any reading on the BombPowerIndicator after a nuclear strike on the United Kingdom during the Cold War...
Organisation Aircraft recognition BombPowerIndicator Dowding system Fixed Survey Meter Four-minute warning Ground Zero Indicator Aircraft Detection Corps Newfoundland...
bytes-per-inch, used to specify the data density of magnetic tape BombPowerIndicator, used by the Royal Observer Corps during the Cold War to detect nuclear...
Operational instruments of the Royal Observer Corps AWDREY BombPowerIndicator Ground Zero Indicator Fixed Survey Meter United Kingdom Warning and Monitoring...
Operational instruments of the Royal Observer Corps AWDREY BombPowerIndicator Ground Zero Indicator Fixed Survey Meter "U.K.W.M.O. Communications". Ringbell...
combined with the peak-overpressure readings from post BombPowerIndicator readings the power of the burst in megatons could also be calculated by the...
Royal Observer Corps Royal Observer Corps Monitoring Post BombPowerIndicator Ground Zero Indicator Fixed Survey Meter Nuclear MASINT US equivalent AWDREY...
Operational instruments of the Royal Observer Corps AWDREY BombPowerIndicator Ground Zero Indicator Fixed Survey Meter United Kingdom Warning and Monitoring...
identify the explosion as a nuclear strike. ROC post bomb detection instruments (see BombPowerIndicator) operated by recording the peak overpressure of the...
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Operational instruments of the Royal Observer Corps AWDREY BombPowerIndicator Ground Zero Indicator Fixed Survey Meter United Kingdom Warning and Monitoring...
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