National airspace system
Subtitle: observations on the Wide Area Augmentation System : statement of Gerald L. Dillingham, Associate Director, Transportation Issues, Resources, Community, and Economic Development Division, before the Subcommittee on Aviation, Committee on Transportation and Infrastructure, House of Representatives
By: United States General Accounting Office.
Contributors: United States. General Accounting Office.
Series: Testimony -- GAO/T-RCED-98-12.
Publisher: The Office
Published: 1997
Place of publication: Washington, D.C. (P.O. Box 37050, Washington, D.C. 20013)
Language: eng
Format: Microform
Number of pages: 20
Subjects: United States. -- Federal Aviation Administration -- Decision making -- Evaluation.; Artificial satellites in navigation -- United States.; Global Positioning System.; Navigation (Aeronautics) -- United States.
Other titles: Observations on the Wide Area Augmentation System.
Notes: Shipping list no.: 98-0480-M.

"October 1, 1997."

Includes bibliographical references.

Microfiche. [Washington, D.C.] : U.S. General Accounting Office, [1998?] 1 microfiche : negative.