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NSIAD-85-50 1 (1985-01-31)

handle is hein.gao/gaobabnop0001 and id is 1 raw text is: UNITED STATES GENERAL ACCOUNTING OFFICE WASHINGTON, D.C. 20548 NATIONAL sEcuRITY ANJ INTERNATIONAL AFFAIRS DIVISION JANUARY 31,1985 B-217341 The Honorable Caspar W. Weinberger The Secretary of Defense Dear Mr. Secretary: Subject: Separate Army and Air Force Airborne SINCGARS Programs May Be Uneconomical (GAO/NSIAD-85-50) The Army's Single Channel Ground and Airborne Radio System (SINCGARS) is the jam-resistant VHF-FM radio communications system providing the primary means of command and control for infantry, artillery, and armored units. It is the primary means of communication in the Division for the conduct of the land battle. The ground SINCGARS which replaces the current VHF-FM combat net radios is being managed and procured for all services by the Army. The Air Force and the Army have separate airborne SINCGARS programs to develop and produce compatible radios for use on aircraft which communicate with ground units. The major difference between the two programs is the Air Force requires an AM band in addition to the FM band. This dual band capability is needed because space limitations on some aircraft preclude installing separate AM and FM radios. According to SINCGARS program officials of both services, the Army radio could be modified to satisfy Air Force requirements, primarily by adding an AM band. Estimates provided by program officials indicate that development and production cost savings by adopting this approach are potentially tens of millions of dollars. A high degree of commonality through a joint program should also result in maintenance and support cost savings. CURRENT SINCGARS PROGRAM In 1982, to provide the airborne communications capability to talk with ground units, the Army entered a joint development pro- ject led by the Air Force to develop an airborne VHF-AM/FM capability for use by both services. In 1983, however, the Army directed that its ground and airborne radios be fielded concurrently. Because the Air Force development schedule would not support the Army's earlier deployment schedule, the Army withdrew from the joint project and began to develop a separate VHF-FM radio (without the AM band) based on the design of the ground radios. The ground radio is in production and the Army 1,& 1,23 (395012) .

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