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 INTRODUCTION

The Apollo Lunar Landing Mission Symposium was held at the NASA Manned Space craft Center on June 25, 26 and 27, 1966. The papers presented during the three days covered all aspects of the lunar landing mission, with primary emphasis on the lunar operations phases of the mission.

The purpose of the Symposium was to present the current lunar landing mission plan, and to subject the plan to a critical review by the body of experts who composed the audience.

To accomplish this objective, the papers were necessarily very detailed. Questions and comments were solicited from the audience after each paper, and this participation produced some excellent results. However, due to the volume and detail of material presented, the audience could not be expected to provide a critical appraisal from a single look at the material. For this reason, then, the papers and proceedings have been published and transmitted to each attendee. The attendees are urged to review the material and submit comments to Mr. Owen Maynard at the Manned Spacecraft Center.

The Symposium material has been published in three volumes, generally in the order that the papers were presented. The questions and comments from the audience follow the particular paper at which they were directed.

Volume I of the Symposium material contains, in addition to the formal papers presented on the first day, the introductory remarks by Dr. Gilruth, General Phillips, and Dr. Shea; Volume I also contains Dr. Shea's con­cluding remarks from the final day of the Symposium.

Due to time limitations during the Symposium, there were several topics of interest for which presentations had been prepared but were not for­mally discussed. These topics were the following:

1. Control of Lunar Surface Contamination and Back Contamination Lunar

2. Thermodynamic Constraints on Mission Capability

3. Service Module Reaction Control System Propellant Management.

This material has been included in the published version of the Symposium.