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Estimating the Oswald Factor from Basic Aircraft Geometrical Parameters
This paper provides a sufficient accurate estimation method for the span efficiency factor, e, during the preliminary design stage. First, several approaches are identified from an exhaustiveExpand
BOX WING FUNDAMENTALS - AN AIRCRAFT DESIGN PERSPECTIVE
A systematic and general investigation about box wing aircraft is conducted, including aerodynamic and performance characteristics. The design of a promising medium range box wing aircraft based onExpand
The Conflict of Aerodynamic Efficiency and Static Longitudinal Stability of Box Wing Aircraft
The induced drag of box wing aircraft is assessed with the help of literature data. The theoretical foundations of static longitudinal stability and controllability are presented and applied to theExpand
FUEL CONSUMPTION DUE TO SHAFT POWER OFF-TAKES FROM THE ENGINE
This paper looks at fuel consumption due to shaft power off-takes from the engine and the related increase in the aircraft’s fuel consumption. It presents a review and comparison of published andExpand
IMPROVEMENTS TO GROUND HANDLING OPERATIONS AND THEIR BENEFITS TO DIRECT OPERATING COSTS
This paper systematically identifies and investigates ideas to improve ground handling operations and determines their influence on Direct Operating Costs (DOC). First, the importance of groundExpand
Box Wing Flight Dynamics in the Stage of Conceptual Aircraft Design
Different computational methods are available to evaluate the flying qualities of an aircraft in the stage of conceptual design. However, due to the unconventional configuration of the box wingExpand
COMPARISON OF THE POTENTIAL ENVIRONMENTAL IMPACT IMPROVEMENTS OF FUTURE A IRCRAFT CONCEPTS USING LIFE CYCLE ASSESSMENT
In today’s aeronautical research, several future airc raft concepts are being discussed. Among them are electric, hydrogen and alternative fuel powered aircraft. Often, their potential environmentalExpand
1 PRELIMINARY SIZING OF LARGE PROPELLER DRIVEN AEROPLANES
Different types of aeroplanes (small / large, propeller / jet) require their own type of preliminary sizing method. One of theses methods differs only in a few but important aspects from the other.Expand
Automatic Generation of 3D-CAD Models to Bridge the Gap between Aircraft Preliminary Sizing and Geometric Design
This paper presents an extension to the Aircraft Preliminary Sizing Tool PreSTo which has been developed at the HAW Hamburg. The extension is called "PreSTo-Vis"; it bridges the gap between theExpand
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