Data are reported for hypervelocity impact cratering in glass arising from
impacts of 1 mm diameter aluminium spheres impacting thick glass targets at
5.11 +/- 0.13 km s(-1). The angle of incidence of the projectiles was vari
ed from 0 degrees (normal incidence) to 80 degrees (glancing incidence). Th
e crater resulting from each impact was measured and it was found that the
crater size does not change significantly unless impacts are at > 45 degree
s from the normal. Crater shape (as given by ratios of crater measurements,
e.g. depth/diameter) is insensitive to impact angle up to extreme angles o
f incidence. (C) 2001 Elsevier Science B.V. All rights reserved.