LUNAR RELIEF MODELS

Describes procedures used to prepare lunar terrain models incorporating spherical curvature and specialized finishing effects. No all-purpose solution to userrequirements is intended but the variety of material possible from lunar model reproduction can furnish a wide range of simulated products. Major objectives resolved as a result of project activity include: development and preparation of prototype easels and curvature bases; master relief models realistically depicting portions of the moon's visible surface; and photomechanical procedures effecting transformation of standard chart projections to true globular projection (required when incorporating scaled lunar curvature). Limited investigation also revealed that a high degree of photosimulation is possible through combined used of controlled lighting, photography, and lunar relief models. Sample shots simulating telescopic observations and predicted or actual orbital views have been included, indicative of materials useful to planning, training, and briefing. (Author)