Purple Corridor
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{{Use British English|date=January 2018}}
In United Kingdom aviation, a purple corridor is an area kept free from commercial or other aircraft to allow for the passage of royal or other VIP aircraft. It includes a stipulation that no plane takes off or leaves within 20 minutes of a royal plane."[https://news.google.com/newspapers?nid=1899&dat=19811201&id=J14gAAAAIBAJ&sjid=E2UFAAAAIBAJ&pg=1381,127233 People in the news]"
Incidents
On 25 October 1960, after a visit to Germany and Denmark, a Queen's Flight (32 Sqn) de Havilland Comet aircraft was 'buzzed' by two West German North American F-86 Sabre aircraft, at 30,000 ft, 20 miles north of Groningen Airport Eelde, near the German-Dutch border. The British pilot was Flight Lt Frank Stevens, who saw 'two aircraft with iron crosses' pass 50 feet above the Comet.Times Wednesday October 26, 1960, page 12 Three West German Air Force officers arrived at RAF Lyneham, on 26 October 1960, to discuss the incident.Times Thursday October 27 1960, page 12 RAF investigation staff arrived at RAF Wildenrath, for a meeting of the Second Allied Tactical Air Force at JHQ Rheindahlen in Mönchengladbach.Times Friday October 28 1960, page 11 The Germans had been told that the Comet would fly in the Amber airway from Heligoland to Groningen.Times Thursday October 27 1960, page 12