Mr. Raj Sengupta is one of the Principals of Marine Design and Operations, Inc. With a professional career of more than thirty years, he has extensive experience and skills in a broad range of activities. Among these are:
Mr. Sengupta has been responsible for several new construction projects for containerships, reefer vessels, bulk carriers, chemical carriers, and car carriers. Mr. Sengupta's new construction experience ranges from negotiating technical and financial terms with the yard, selection of contractor, construction design plan approval, and on-site supervision including project management. Mr. Sengupta’s experience ranges from projects in U.S., to Korea, Japan, France, Norway, and Germany. Mr. Sengupta has been resident in several of these countries in excess of six months, and traveled numerous times on business visits.
Mr. Sengupta has been involved in various capacities as owner's/charterer's representative for inspections and on-hire surveys of reefer ships, car carriers, and chemical tankers and ore carriers. Mr. Sengupta has also been responsible for projects involving retrofitting gantry cranes on containerships, and conversions of existing containerships to modify their cargo carrying capacity.
Mr. Sengupta has been involved with several management consulting assignments. These include working for the Board of Directors of the Hellenic Telecommunications Co. to evaluate the business plan and source selection process for new construction of one cable laying vessel, assist BT-NPR in privatization of Navieras de Puerto Rico. In the later project Mr. Sengupta was the primary technical consultant to the investment banking group, and was responsible for developing operating cost models, five year budgets, complete due diligence inspections and vessel economic evaluation.
In the past Mr. Sengupta was employed by C.R. Cushing & Co., Inc. and during that period of his employment he was involved in various projects of preliminary design, new construction and conversions. Prior to leaving C.R. Cushing & Co., Inc., Mr. Raj Sengupta was a project manager.
Mr. Sengupta graduated in 1975 from the UNIVERSITY OF MICHIGAN with a Masters Degree of Science and Engineering in Naval Architecture and Marine Engineering (Ship Structures).
Mr. Sengupta is a member of the Society of Naval Architects and Marine Engineers in New York. He is also a member of the Royal Institute of Naval Architects in London, the American Society of Naval Engineers in Washington, D.C. and is a life member of the Society of Naval Architects in Korea.
Mr. Chang is one of the Principals of Marine Design and Operations, Inc. He has over twenty two years experience in the design, construction, repair and conversion of ships. He specializes in the design, construction and installation of ship's main and auxiliary machinery systems. Mr. Chang has extensive experience and skills in a broad range of activities. Among these are:
Mr. Chang has worked on the design, construction, repair and conversion of numerous types of vessels including containerships, oil tankers, LASH vessels, RO/RO's, chemical carriers, reefer ships, bulk carriers, tugs and barges. He most recently has been responsible for the development of contract guidance plans and specifications for the design of a 24,000 DWT molten sulphur carrier.
Mr. Chang has been involved in the reflagging of over eight foreign ships to U.S. Flag. He has been responsible for the U.S.C.G approval of the main and auxiliary machinery and fluid piping systems. He is familiar with all of the major world regulatory bodies and regulations.
Mr. Chang was an owner's representative and shipyard inspector for the reconstruction and reflagging of a 60,000 DWT U.S. Flag chemical carrier.
Mr. Chang has been responsible for the modifications to various ships’ auxiliary systems including design and installation of air conditioning and dehumidification plants for controlled atmosphere onboard ship and installation of additional ship's service diesel generators and switchgear.
Mr. Chang graduated in 1986 from CITY COLLEGE, CITY UNIVERSITY OF NEW YORK with a Bachelor’s Degree of Science in Mechanical Engineering. Mr. Chang served in the United States Coast Guard and was an officer candidate at the Naval Academy Preparatory school in Newport, Rhode Island.
Mr. Chang is an associate member of the Society of Naval Architects and Marine Engineers. He is also an associate member of the American Society of Naval Engineers.
Mr. Gaczewski is one of the Principals of Marine Design and Operations, Inc. He is involved in a variety of technical projects involving basic naval architecture, ship structural analysis, and basic ship design for conversion and new construction.
Mr. Gaczewski has been involved with several projects as on-site steel inspector for Horizon Lines, Navieras, MARAD and others. His on-site work includes supervision of work according to specifications, surveys, and identifying emergent work and writing specifications and preparing fabrication drawings. He is also able to perform structural analysis of emergent work and engineer the most efficient repair or design change in accordance with regulatory requirements.
Mr. Gaczewski has been involved in the design process of structural modifications of various container, RO/RO, oil tankers, chemical carriers and bulk carriers, specifically in new container stowage arrangement, new heavy vehicles decks, cargo booms and booms supports.
Mr. Gaczewski creates and modifies Trim & Stability Booklets, Grain Stability Booklets, Container Stowage Manuals, and Mooring Plans, Vessel General Arrangements, Capacity Plans, Master Conversion Plans and Specifications.
Mr. Gaczewski performs FEM analysis for large and complexes structures such as new heavy vehicles decks for car carrier to small and detailed elements such as deck socket reinforcements and buckling stability of cargo boom.
Mr. Gaczewski is responsible for designing and preparing drawings in accordance with Class, U.S.C.G and SOLAS requirements and getting necessary approvals.
Prior to joining Marine Design and Operations, Inc. Mr. Gaczewski’s experience included:
Part-time draftsperson and research assistant for Marine Technology Department at GDANSK POLYTECHNIC UNIVERSITY (1984-1988) - Participated in building and testing of ship model with new steering system and taking part in model testing in Poland
Structural welder and fitter at GDANSK SHIPYARD (1980-1981) Poland
Mr. Gaczewski graduated from the State University of New York Maritime College with a Bachelor’s Degree of Engineering in Naval Architecture (with distinction) in 1998. Mr. Gaczewski also attended Gdansk Polytechnic University (1981-1988) Shipbuilding Department. During the nine semesters completed there his curriculum emphasized construction, structures and ship design, propeller and basics of ship equipment, machinery, and engine design.
Mr. Gaczewski is extremely proficient in computer applications. He is well versed in MS Office, Windows, Basic Programming, CorelDraw, AutoCAD, Hecsalv, Nautilus, NavCAD and ALGOR FEM.
Mr. Gaczewski is a licensed Professional Engineer by the State of NY - License Number 08148.
Mr. Gaczewski is a member of the Society of Naval Architects.