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Donald L. Blount

With over 100 technical and white papers published in some of the most prestigious boating magazines and, in many cases, presented at major conferences sponsored by organizations such as IBEX, SNAME, and RINA in the short 30 years since our founding. Our hope in this library is to release quality and relevant information to anyone wanting to learn about naval architecture and marine engineering.

Donald L. Blount

Founder, DLBA

Here you can find the latest library articles about DLBA

Technical Feasibility of the 100 Knot Yacht

Donald L. Blount and Associates, Inc. has design cognizance over four of the world’s fastest fifteen megayachts. Included in the list of the fastest yachts are the gas turbine Motor Yacht DESTRIERO and the gas turbine Motor Yacht FORTUNA. GTMY DESTRIERO, length overall of 67.7m (222 feet), holds the record for the fastest Eastbound trans-Atlantic crossing at 53.09 knots.

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aluminum boats

Design and Production of Aluminum Boats

Due to reductions in materials costs and advances in fabrication technology, the marine industry has recently seen a proliferation of custom and semi-production aluminum boats. There always have been a number of large yacht builders who work exclusively in aluminum alloys, and they have been fairly price competitive alongside the well-known FRP custom yacht builders.

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Propellers in a Cavitating Environment

Design Considerations for Propellers in a Cavitating Environment

Cavitation adds a dimension to propeller operation that necessitates rational design practice to approach a good balance of craft requirements. This paper discusses propeller characteristic format to reduce the computation time to make performance predictions and propeller selection for partially and fully cavitating conditions.

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Design of Propeller Tunnels for High-Speed Craft

Propellers recessed into tunnels are worthy of consideration as an alternative to propellers on inclined shafts or waterjet propulsors. The enhancements achieved by using a partial tunnel include reducing the shaft angle, decreasing navigational draft and allowing the propulsion machinery to move aft for an appropriate longitudinal center of gravity location and/or improved arrangements.

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transport efficiency

Effective use of the transport efficiency concept

This DLBA paper helps to apply the powerful tool of transport efficiency, expanding upon the information presented in the paper titled “Achievements with Advanced Craft”. Using this calculation technique, DLBA developed a tool that can quickly evaluate the performance of a specific boat, and accurately predict vessel performance based on minimal information.

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DLBA Naval Architects

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Phone: 757-545-3700  |  Fax: 757-545-8227  | dlba@gibbscox.com

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