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This is Volume 2 of the Ministry of Defence report 'Unidentified Aerial Phenomena in the UK Air Defence Region', Defence Intelligence Staff Scientific and Technical Memorandum 55/2/00, dated February 2000 and received 7 December 2000. It gathers 25 working papers on natural and man-made phenomena, meant as a reference for analysing UAP reports. The papers cover ball lightning, radar detection, balloons, satellites, mirages, plasma and similar subjects. One paper compares magnetic field experiments on human volunteers with close encounter reports. It concludes that effects from such fields are 'uncannily similar' to what witnesses describe.
“Sea”13 pages
# COLLECTED IMAGERY AND CLASSIFICATION OF UAP SHAPES ## CONTENTS 1. The material in this section has been collected from a number of sources - news reports, photography and video records. The sources are not limited to UK reports, as the intention is to use the material as a reference/correlation catalogue and to hopefully use the material as a filter to separate the explainable from the inexplicable, if possible. In some cases particularly since the advent of personal video cameras - the original material is in colour. Shape and lights (colours) are invariably the trigger which attracts the eye and results in incident reports. Shapes have been generically categorised as follows: -SPHERES (Includes‘BOLS’and multiple spherical lights) Figures1-7 -DISCS (Only circular in plan-and thus, on frequent occasions from different aspects,the same events are described by other witnesses as‘balls’or spheres) Figures8to28. -CIGAR These have a larger mid-chord than discs and tend towards‘long airship’shapes,with much less‘sharp’ends than discs Figure29 -STAR/POINT Seen as balls of light,with the star effect due to atmospheric optics - -OVAL Described as a variant of‘discs’,but with a wider mid-chord and without the elongation of‘cigars’ -TRIANGLE/PYRAMID/CONE/RECTANGLE/CYLINDER The outline shape is formed,not by a solid object,although at times it appears so-see Working Papers)but by three or more coloured lights at the extremities,forming the‘corners’.A cylinder is often described which is,in fact,formed by a row of lights(balls).A vertically oriented cylinder is sometimes seen-see Working Papers No23 and24 Figures30to35
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