This is a weekly summary of selected prime contracts recently awarded by the federal government to companies and other vendors in Maryland.
Martin Marietta Corp. in Orlando, Fla., won a $314,904,021 contract from the Army for development and production of the Longbow fire control radar.
Martin Marietta Orlando Aerospace in Orlando, Fla., won a $37,996,116 contract from the Air Force to supply material for a Low-Altitude Navigation and Targeting Infrared System for Turkey.
Westinghouse Electric Corp. in Baltimore won a $32,700,000 contract from the Air Force to develop advanced signal processors for the F-16 radar system.
Vitro Corp. in Silver Spring won a $30,095,049 contract from the Strategic Systems Program Office for engineering services for the Trident Missile Program.
Westinghouse Electric Corp. at Baltimore-Washington International Airport and Martin Marietta Corp. in Orlando, Fla., won a $20,000,000 contract from the Army for full-scale engineering development of a Longbow Hellfire Modular Missile System.
Johns Hopkins University's Applied Physics Laboratory in Laurel won an $18,434,578 contract from the Space and Naval Warfare Systems Command to provide research, development, engineering and technical services.
Allied-Signal Aerospace Co. in Baltimore won an $11,575,785 contract from the Navy to supply a target-detecting device and shroud antenna assembly.
Bendix Field Engineering in Columbia won a $2,977,039 increment as part of a $13,134,552 contract from the Defense Nuclear Agency to support underground testing, high-explosive testing and thermal radiation source testing.
Summit Research Corp. in Gaithersburg won a $1,098,860 contract from the Navy to provide support services for war games at the Naval War College in Newport, R.I.
Booz-Allen & Hamilton in Bethesda won a $924,967 contract from the Navy for engineering, technical and analytical support.
Andrulis Research Corp. in Bethesda won an $826,433 contract from the Army to provide administrative and technical services.
Thiokol Chemical Corp. in Elkton won a $623,552 contract from the Navy for ammunition and explosives.
Current Computer Corp. in Rockville won a $596,344 contract from the Navy for communications equipment.
Charles G. Marshall Inc. in Clinton won a $327,000 contract from the Navy to install an air compressor.
R.O.W. Sciences Inc. in Rockville won a $285,280 contract from the Air Force to provide animal husbandry services and other services.
IMS Inc. in Rockville won a $207,699 contract from the Navy for computer systems development.
Ronald Hsu Construction in Capitol Heights won a $188,500 contract from the Walter Reed Army Medical Center to replace stairwell treads and risers at the hospital in Washington.
Rail Co. in Towson won a $150,193 contract from the Navy for independent analysis and technical studies, and a $118,344 contract from the Navy for engineering and technical services.