September 21, 1952 — North Sea
Six RAF Meteor jets flying above the North Sea observe a shiny sphere approaching from the direction of the Mainbrace fleet. It eludes their pursuit and disappears. As they are returning, it reappears following one of the jets, but when he turns to chase it, it speeds away. Ruppelt says the Mainbrace sightings forced the RAF to “officially recognize the UFO.” [Eberhart]
Sources:
UFO Flying Saucers (Gold Key) comic No. 1;
Edward Ruppelt, The Report on Unidentified Flying Objects, p. 196;
Richard Hall, The UFO Evidence, pp. 162-163;
Brad Sparks, Blue Books Unknowns Catalogue, Case 831, p. 173;
NICAP, “Six RAF Jets Approached by Shiny Sphere”;