mttc.gif (11540 bytes) MANTECH

About MTTC

Technology Transfer
Electronic Commerce
ISO/QS 9000
Technical Training

Training Schedule

MTTC Projects

Success Stories


Map to MTTC


MTTC Fleet Maintenance Technology Transfer Projects

The following projects have been initiated since the initial FWG meeting in June 1998:

  • Lynx Motor Shock Test - The Lynx Motor has the potential of replacing electric motor & transmissions with a common motor/controller in a wide variety of applications. The motor requires shock testing prior to application to shipboard systems. The objective of this project is to conduct the shock test qualification. The technical point of contact for this TDL is Mr. John Anderson, NAVSEA Code SEA-03Z71, (703) 602-5586 ext 366.
  • Sea Water Fouling Prevention - Marine growth causes fouling of the fleets sea water systems. The use of chlorinating to prevent fouling of the sea water systems is a proven technology being applied to new construction ships in both the military and commercial applications. The objective of this project is to develop a portable chlorinator unit., determine the optimal location of the injector port, install the injector port on a fleet ship and evaluate the portable chlorinator’s utility to prevent fouling. The technical point of contact for this TDL is Mr. Fred Tsao, NAVSEA Code SEA-03L, (703) 602-5552 ext 604.
  • Superbolt Qualification Testing - The fleet has numerous applications for large diameter locking devices. Current tightening/loosening methods include hydraulic wrenches and long lever-arm wrenches. A uniquely bolt with a unique locking system, using common tools for tightening or loosening, is being used in commercial applications. The objective of this project is to qualify this fastener for shipboard use and test the fastener in a shipboard application. The technical point of contact for this TDL is Mr. Jim Williams, NAVSEA Code SEA-03W, (703) 602-1596 ext 130. COMPLETE.
  • Watertight Door Hinges There are approximately 52,000 watertight doors in-service in the U.S. Navy. NAVSEA 03 estimates the annual maintenance expenditure of the watertight door hinge to be $10M. The current door hinges have historically demonstrated the inability to withstand the open/close cycling over extended periods. Doors in high traffic applications are experiencing 1000 cycles/day and require replacement of hinge pins, yoke pins and yoke washers in as little as three weeks. Preliminary tests of the door hinge were conducted on USS RAINIER over a three-month period. The proposed replacement hinge assembly performed much better than the existing pin. This project will evaluate the performance of the watertight door hinge design in a controlled, laboratory test to permit qualification for fleet use. The technical point of contact is Mr. Jim Hahn, NAVSEA 03P7, (703) 602-9391 ext 419.
  • Heat Exchanger Descaler – Currently, heat exchanger descaling requires the heat exchanger to be removed and washed with an acid solution by an intermediate maintenance activity. The current process requires approximately six days to clean and takes the shipboard system serviced by the heat exchanger "down" as well. A new technology is in use in a variety of commercial applications. The cleaning using this technology is performed by isolating the components to be cleaned in a closed loop system and circulating a descaling solution through the system. Preliminary tests have confirmed that the method is an effective descaling method and can be used aboard ship with organic personnel. This method requires only four hours. Qualification will require a controlled test to verify effectiveness in a controlled shipboard setting and result in a personnel safety approval. The technical point of contact is Darryl Sheedlo, NAVSEA PMS307, (703) 602-8607.
  • EPOXY Bilge Paints – Corrosion control has been and continues to be the predominant fleet maintenance issue. One area that is particularly susceptible to corrosion is in the bilge area (very bottom of the internal ship’s hull). Water gravitates to the bilges and, combined with fuel and other wastes, causes rapid corrosion, unless the metal is adequately protected. Preparing and painting bilges is a difficult and dirty job that no one likes. The surfaces must be completely clean and dry, which is almost impossible in this environment. Until recently, the only alternative was to preserve these areas on a repeated basis. The maintenance of this one area of the ship can require hundreds of man-hours of work per month on a typical ship.  New paints, that has very low volatile organic compounds (VOCs) have been developed in Europe and are being used in the commercial shipbuilding industry there. In order to qualify these paints for U.S. Navy use, MTTC will paint several test bilges on fleet ships in order to quantify the application requirements and the paint effectiveness. The Navy wants to verify that the paint can be applied over less-than-ideally-prepared surfaces and will adhere properly. The technical point of contact is Mr. Mark Ingle, NAVSEA 03M3, (703) 602-0146 ext 231.
  • Topside Connector Cover – The fleet has used a variety of solutions to minimize corrosion of topside connectors. The most common solution is to wrap the connector with tape and coat with polysulfide or to employ cold shrink tubing. These solutions are permanent and they must be replaced if it is necessary to access the connector. A new technology uses a toroid filled with gel. The gel permits the cover to easily slide over and completely seal the connector from the environment. This cover can be easily slid back from the connector for inspection and then restored by sliding it back. This project will conduct qualification tests that will support a decision for unlimited shipboard use. The technical point of contact is Mr. Don Cross, NAVSEA 03K, (703) 602-9121 ext 228.
  • K-Flex ECO Pipe Insulation - The current Calcium Silicate insulation used onboard ship is heavy and very difficult to install.   Fleet maintenance personnel and shipbuilders re looking for new materials that will meet the requirements and yet be less costly to install.  A test section of K-Flex ECO Insulation was installed on USS RUSHMORE for at sea tests.  This insulation is targeted to temperature ranges up to 250 degrees F. Upon completion of the ship's deployment, the condition of the insulation will be appraised for potential Navy use.   The technical point of contact for this project is Mr. Rich Dempsey, NAVSEA Code 03M3, (703) 602-0145 ext. 102.
  • DDG-51 Class Louvers - The design of an the materials used in the 47 intake louvers on each of the inservice DDG-51 guided Missile Destroyers has proven to be very susceptible to corrosion.  A wide variety of coatings and surface treatment methods have been used unsuccessfully to date.  At the request of COMNAVSURFLANT and CINCLANTFLT, MTTC obtained a set of test louvers and had them powder coated using a fluidized bed method.  These louvers were delivered back to the USS COOK for extensive at-sea testing.  The technical point of contact for this project is Mr. David Barlett, CINCLANTFLT Science Advisor, (757) 836-3755.   SURFLANT will track the status of these test units.  COMPLETE
  • Tri-Tec Remote Valve Actuators - Current remote valve actuators suffer from poor reliability, are very difficult to accurately set and maintain and do not physically fit in some applications.  This project will assess the performance of a new design remote valve actuator developed by Tri-Tec, Inc.   performance variables, including torque, valve limit adjustments, electronic control interoperability and reliability will be monitored.  The initial target application is the JP-5 system on Aircraft Carriers.  The technical point of contact for this project is Mr. Jim Ried, NAVSEA Code SEA-03L, (703) 602-9711 ext. 111.
  • ECOTHERM Pipe Insulation - This project is being conducted in conjunction with the K-Flex ECO Insulation described in a previous project.  ECOTHERM is a fibrous insulation that may be used to replace the current Calcium Silicate insulation in high temperature (250-1000 degrees F.) applications.   In this project, selected portions of high temperature piping on a test ship will be observed under normal operating conditions at sea for an extended period.  Based on the results of this test, NAVSEA will make a determination on shipboard use.   Technical point of contact is Mr. Rich Dempsey, NAVSEA Code SEA-03M3, (703) 602-0145, ext 102.

Points of Contact

For additional information on Navy news and projects contact Dick Gilbert  by e-mail [email protected] or Bob Zangmeister, Naval Surface Warfare Center, Port Hueneme Division, at (502) 364-5014 or email [email protected].

Tech Transfer Home


Email Us!


119 Rochester Drive
Louisville, KY 40214
[email protected]
fax (502)367-4261

Home | Divisions | Search | Contact

Copyright 1999 All Rights Reserved