Typhoon jet sonic boom caused big bang says MoD
A SONIC boom from two Typhoon fighter jets sent shockwaves across parts of Gloucestershire.
The Ministry of Defence has confirmed the big bang was caused after the RAF jets were scrambled after a small civilian helicopter emitted a signal on a frequency normally reserved for emergencies only.
Such a signal could indicate the aircraft had been hijacked or had “gone rogue”.
An MoD spokesman said the fighter planes had been authorised to go supersonic and were already on their way to the helicopter.
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He said: “We can confirm that a small civilian aircraft was transmitting inadvertently on an emergency frequency at approximately 1810.
“Two typhoons from the Quick Reaction Alert (QRA) responded accordingly and authorisation was given from them to go supersonic, which resulted in the sonic boom.
“There was no actual threat to the civilian aircraft and they soon rectified their mistake.”
Video courtesy of Ric McLaughlin
A sonic boom is the sound associated with the shockwaves created when an object travels through the air and breaks the sound barrier.
The noise contains large amounts of sound energy, meaning sonic booms are often mistaken for explosions.
Reports of the sonic boom were heard as far afield as Bath, Swindon, Coventry, Rugby and Oxford.
Speculation about what could have caused the noise ranged from a large explosion to an underground tremor.