SKETCH: A Computer Program for Plotting a Transport Airplane Configuration in Conceptual Design

摘要

The computer program SKETCH, for automatically plotting an elementary airplane configuration drawing (wing + fuselage + tail planes + nacelles) was developed for conceptual design studies of transport airplanes. Wing and tail plane geometries are derived from the major design parameters, e.g., wing area, aspect ratio, sweep angle, tail volume coefficients. Nondimensional parameters are used to define the location of the components and to allow rapid reorientation without losing the coherency of the configuration. Results of SKETCH applied to existing airplanes are presented. Directions for use of the program are included.