Some fundamental considerations in regard to the use of power in landing an airplane
This NASA technical report from 1939, drawn from the NASA Technical Reports Server, sets out aerodynamic considerations for using engine power during airplane landings and is aimed at aeronautical engineers and pilots. Its one picture is a line graph plotting the increase in maximum lift coefficient from power against weight-to-brake-horsepower loading, with curves for thrust levels from 1.0 to 4.0 across a fine grid, offering a designer a clean model of how overlapping curves and labelled families can communicate technical data.
