Abstractthe objectof this paper is to cover some aspects of three‐dimensional navigation and traffic control of the SST during climb and descent.This paper is the direct result of a study on this subject which was carried out by Airborne Instruments Laboratory for the Federal Aviation Agency in 1961 [1]. That study was basically concerned with the various classes of aircraft encountered in air traffic operations today, but some consideration was given to the SST.This paper does not necessarily set out to answer any specific questions relating to terminal area operations of the SST, but rather to bring into focus some basic facts which must be considered in any planning of SST terminal area operations.If we are to understand how the aircraft is to be navigated and controlled during the climb and descent we must have some understanding of the aerodynamics involve