Abstract: This Survey is divided into four parts: (a) a representation of winds of space and time, which includes a tool for analysis, called the "geostrophic-gradient divider", and the "2-prog" and "4-prog" charts ; (b) flight planning tools: the 4-D plotter and the fixed-speed time-front plotter ; (c) methods of flight planning, including fixed-track flight planning, single-drift flight planning and emphasizing minimal flight planning, and (d) an interpolative system of minimal flight planning. Included are three appendices to do the following: (a) to derive the basic equation of minimal flight planning, to show why time fronts should be drawn omitting the crosswinds, and to show why time fronts prepared from one airspeed can be used on minimal flight paths with another airspeed ; (b) to show the advantage of 4-prog charts or derived 2-prog charts in representing vertical wind shears that are changing with time, and (c) to report on tests of the recommended procedures.

Abstract: "Field investigations of an ice-free land area at Polaris Promontory, Hall Land in northwest Greenland were undertaken to determine if this area could support austere military aircraft operations. Detailed scientific observations of geology, meteorology, natural terrain features of the area were made, thorough investigations of the soil features and bearing strength were conducted, and an airstrip was prepared and marked. Successful test landings by a C-130 aircraft were made on the airstrip. Possible alternate airstrip sites were studied and conclusions drawn on the usability of such ice-free land sites for military activities."