The Hawker HunterTower Bridge incident occurred on 5 April 1968 when Royal Air Force Hawker Hunter pilot Alan Pollock performed unauthorised low flying over several London landmarks and then flew through the span of Tower Bridge on the Thames. His actions were to mark the 50th anniversary of the founding of the RAF and as a demonstration against the Ministry of Defence for not recognising it. Upon landing he was arrested and later invalided out of the RAF on medical grounds, which avoided a court martial.
On 5 April 1968, Pollock decided on his own initiative to mark the occasion of the RAF anniversary with an unauthorised display. His flight left the soon-to-be-closed RAF Tangmere in Sussex to return to RAF West Raynham in Norfolk, a route that took them over London. Immediately after takeoff, Pollock left the flight and flew low level. Having "beaten up" Dunsfold Aerodrome, he then took his Hawker Hunter FGA.9, a single-seater, ground-attack jet fighter, over London at low level, and circled the Houses of Parliament three times as a demonstration against Prime Minister Harold Wilson's government. Pollock continued and dipped his wings over the Royal Air Force Memorial on the Embankment, and finally flew under the top span of Tower Bridge. He later wrote of the decision to fly through Tower Bridge: Knowing that he was likely to be stripped of his flying status as a result of this display, he proceeded to "beat up" several airfields in inverted flight at an altitude of about 200 feet en route to his base at RAF West Raynham, where, within the hour, he was formally arrested by Flying Officer Roger Gilpin. Although other pilots had flown under the upper span of Tower Bridge, Pollock was the first to do so in a jet aircraft.
Aftermath
In the immediate aftermath of the incident his unit was posted to North Africa without him while he remained on a charge. He was subsequently invalided out of the RAF on medical grounds. This avoided a court martial and the embarrassment to the government of Pollock giving a reason for his stunt and perhaps receiving the support of the public. The RAF placed Pollock in a "psychiatric hold" for two days. Demonstrations of support for Pollock's conduct was expressed by BOAC which sent him a keg of beer and six members of The House of Commons spoke on Pollard's behalf in Parliament. In 1982, the Royal Air Force officially exonerated Pollock for his demonstration flight celebrating the 50th anniversary of the RAF.