Equipment developments under the AFCRL radar meteor trail project are reviewed. Winds and densities in the 80–100 km altitude region obtained at AFCRL, Eglin AFB, Stanford, and Durham are briefly compared with results from other radar meteor stations. A comprehensive list of over 40 meteor trail stations is provided.

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1 Parts of this article appeared in Environmental Research Papers, No. 426, AFCRL-72-0749 (Barnes, 1972a) and some sections were presented at the 15th Radar Meteorology Conference, Champaign-Urbana, Ill., 10–12 October 1972.