Alan C. McClure Associates, Inc. of Houston, naval architects and engineers, specializing in consultation work for a range of offshore and marine transportation related activities, has announced that Fred E. Shumaker has joined the firm as vice president. A graduate of the University of Michigan with 15 years of experience in naval architecture and engineering management, Mr. Shumaker was previously manager, marine engineering, with El Paso Marine Company.

Derek C. Scovell has been promoted to senior staff engineer. He is a graduate of the University of London, with 18 years of experience in marine and offshore activities. Mr. Scovell has been with McClure Associates for 14 months, and was previously with Petro-Marine Engineering, Inc.

John N. Case is joining McClure as senior naval architect. He is a graduate of the University of Michigan with 23 years of experience in the marine industry. Mr. Case brings aboard his experience from Case Existological Laboratories Ltd.