Naval Civil Engineering Laboratory (Port Hueneme, Calif.)

NAVAL CIVIL ENGINEERING LAB PORT HUENEME CA.

Joseph A. Drelicharz

Dynamic response of a light-weight, highly buoyant system can also produce critical problems in operations where relative motions between pontoon pier and ship, and pontoon barge and ship can be anticipated. Since a possibility of damage is inherent in such systems and because the tendency for future systems is toward lightweight materials and construction, pilot tests should be made to determine the dynamic response characteristics of pontoon systems. Such a study has been concluded at NCEL, modeling the lightweight Ammi pontoons; its description and results are presented in this paper. The study is limited in scope and application and, therefore, further studies with other pontoon systems are necessary before the results can be used in developing an analytical response solution for general operating conditions. (Author).

Hydrodynamic Response of Ammi Causeway in Surf Zone - VLAP

R. W. Hansen

G. E. Sherwood

This shelter was developed for the maintenance and repair of construction and other equipment in pioneer polar camps. The shelter, which is 20 by 24 feet, will accommodate equipment as large as a standard Size 4 tractor. It consists of a skid-mounted aluminum frame of knock-down construction and a canvas cover. Accessories include a gantry-mounted, 2-ton traveling boist, and electrical harness, and a personnel side entry. An 8 by 20 foot skid-mounted wanigan outfitted with tools and shop equipment has been developed as a companion item for the shelter. This report provides a guide for erecting and outfitting the shelter and the wanigan. An electrical generator is not provided with the shelter and the wanigan. A 5-kw unit is required for this service. A heater is not provided for the shelter, but the wanigan is equipped with a 27,000-Btuh oil-fired space heater. The shelter is designed for heating with a portable fresh-air heater.

NAVAL CIVIL ENGINEERING LAB PORT HUENEME CA.

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