Reconstruction of the Burderop Down 22-05-2011 formation
1.		Draw a circle. Draw and extend the horizontal and vertical centerlines.
2.		Construct the inscribed equilateral triangle of circle 1, pointing down.
3.		Construct the inscribed equilateral triangle of circle 1, pointing up.
4.		Construct a circle passing through all intersections of triangles 2 and 3.
5.		Construct the inscribed equilateral triangle of circle 4, pointing to the right.
6.		Construct the inscribed circle of triangle 5.
7.		Copy circle 6 to the upper lefthand angular point of triangle 2.
8.		Construct the inscribed equilateral triangle of circle 4, pointing to the left.
9.		Construct a circle, passing through the righthand angular point of triangle 5, and passing through the upper and lower intersections of triangles 5 and 8.
10.		Construct a circle concentric to circle 1, tangent to circle 9 at the lefthand side.
11.		Copy circle 10 to the upper righthand angular point of triangle 2.
12.		Construct a circle passing through all intersections of triangles 5 and 8.
13.		Construct the inscribed equilateral triangle of circle 12, pointing up.
14.		Construct the inscribed circle of triangle 13.
15.		Copy circle 14 two times, to the lower angular points of triangle 3.
16.		Construct a circle centered at the intersection of the lower side of triangle 13 and circle 9, tangent to the lefthand side of triangle 5.
17.		Copy circle 16 two times, to the lower angular point of triangle 2 and the upper angular point of triangle 3.
18.		Draw the connecting line between the intersections of circles 1 and 11.
19.		Construct a circle concentric to circle 1, tangent to line 18.
20.		Construct a circle centered at the upper intersection of circle 1 and the vertical centerline, tangent to circle 19 at the upper side.
21.		Construct a circle concentric to circle 1, tangent to circle 20 at the upper side.
22.		Construct the inscribed equilateral triangle of circle 21, pointing down.
23.		Construct a circle centered at the lower intersection of circle 20 and the vertical centerline, tangent to it at the upper side.
24.		Copy circle 23 to the intersection of the upper side of triangle 22 and the vertical centerline.
25.		Construct a circle concentric to circle 1, tangent to circle 24 at the lower side.
26.		Construct the circumscribed equilateral triangle of circle 25, pointing down.
27.		Circles 7, 10, 11, 15, 17, 19 and 21, and triangles 22 and 26, are used for the final reconstruction.
28.		Remove all parts not visible within the formation itself. High resolution dwf-file
29.		Colour all areas corresponding to standing... High resolution dwf-file
30.		...or to flattened crop, and finish the reconstruction of the Burderop Down formation of 22-05-2011. High resolution dwf-file
31.	Courtesy the Crop Circle Connector Photo by: Olivier Morel	The final result, matched with the aerial image.
Copyright © 2011, Zef Damen, The Netherlands Personal use only, commercial use prohibited.