Again, we have the pleasant opportunity to give recogni­tion to the many people who have contributed their efforts to make the Journal of Aircraft a useful and timely repository of engineering knowledge: to the workers on the frontiers of our technology who have taken time to record their results, thus becoming our authors; to Ruth Bryans, AIAA's Direc­tor of Scientific Publications, who provides imaginative guidance and inspiration in the development of our Journals; to Anne Huth, who applies her natural grace with firmness and efficiency to the difficult job of Managing Editor; to Anne's staff who deal with the day to day problems presented by editors and authors with tolerance and dedication. To all of these we extend sincere gratitude.
  We would like on this occasion to express special tribute to the associate editors who, since the inception of the Journal of Aircraft in 1964, have borne the major responsibility of

assuring its quality through review and judgment of papers submitted for publication. Our deep thanks go to Harold Hoekstra, Herbert Goda, and William Greathouse for their tireless and devoted efforts.
  This is also our opportunity again to acknowledge grate­fully the work of those members of the engineering and scientific community who have given their time and talents in reviewing papers during the past year. This is a most important function, in the process of appraisal, selection, and revision, which establishes technical and literary standards for the Journal. To this group, listed below, we offer the appreciation of the editors and the membership of AIAA.

  * Because it is difficult to include the reviewers for October, November, and December 1969 in this issue of the Journal, they will be listed with the reviewers for 1970, in the January 1971 issue.