PreSTo Wing Module Optimization for the Double Trapezoidal Wing

  • Karunanidhi Ramachandran
  • Dieter Scholz
Conference paper
Part of the Lecture Notes in Mechanical Engineering book series (LNME)


This paper explains the Aircraft Preliminary Sizing Tool (PreSTo) developed at the Hamburg University of Applied Sciences. From the different modules of PreSTo, PreSTo wing, and its sweep angle have been taken as the key feature to explain further. In order to figure out the necessary values for the double trapezoidal wing a loop has been created between the kink chord, inner taper ratio, inboard leading edge sweep angle, and inboard 25 % chord sweep angle. By the end of the loop all the major chords, sweep angles, and taper ratios are calculated and a 2D representation of the wing is given. PreSTo will interact with the user by giving suggestions and during certain parameter conflicts; it can give warning to the user concerning his previous made design choices. Values of wing parameters generated in the wing module are finally stored into PreSTo central database. OpenVSP Connect retrieves values from PreSTo central database and visualizes the aircraft and its wing in 3D with NASA’s tool Open Vehicle Sketch Pad (OpenVSP).


Wing module Optimization Trapezoidal wing Presto Open vehicle sketch pad (open VSAP) 



Aspect ratio


Advanced Aircraft Analysis


Aircraft Synthesis


Aircraft Design and Systems Group


Aircraft Preliminary Design


Chord (index: t = tip, r = root, k = kink)


Computer-Aided Three-Dimensional Interactive Application Version 5


Computer Aided Preliminary Design of Aircraft


Computerized Environment for Aircraft Synthesis and Integrated Optimization Methods


Fuselage diameter


Flight Optimization System


Graphical User Interface

HAW Hamburg

Hamburg University of Applied Sciences


Mean Aerodynamic Chord


Optimization in Preliminary Aircraft Design


Open Vehicle Sketch Pad


Preliminary Aircraft Design and Optimization Program


Aircraft Preliminary Sizing Tool


Raymer Design System


Simple Aircraft Sizing


Distance between kink chord and fuselage centerline


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Copyright information

© Springer Science+Business Media Singapore 2017

Authors and Affiliations

  1. 1.Aircraft Design and System Group (AERO)Hamburg University of Applied SciencesHamburgGermany

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