As director of research and development for all vehicle programs at the U.S. Postal Service (USPS), Han T. Dinh oversees the technical development activities for the world’s largest fleet of vehicles (numbering approximately 208,000). Dinh, who attended the National Institute of Technology in his native Vietnam, received his master’s degree in mechanical engineering from the University of Wisconsin at Madison. In addition, he received an applied scientist degree in mechanical engineering from George Washington University and completed his Ph.D. studies in that subject at the same educational institution.
Dinh’s accomplishments at USPS have included directing its compressed natural gas (CNG) vehicle program, which resulted in more than 7,500 means of motorized transportation converted to CNG operation. His other major contributions have included launching a program at USPS to evaluate hybrid electric vehicle technologies. This program, which he established in 2004, is still in place and has involved testing commercially available hybrid electric vehicles for use in postal delivery operations.