Published online by Cambridge University Press: 18 January 2010
This paper describes a precision position and time service which could support the increased air traffic of the future, with an example of its application to air traffic control. Horizontal position and epoch time distribution are provided by Loran-C and vertical position by digital barometric altimetry. The proposed use of these systems for horizontal navigation, vertical positioning and landing approach is based on their successful use by current high-speed aircraft. The paper was presented at the 19th Technical Conference of I.A.T.A., Dublin, October 1972.