Conceptual design of a flying boom for air-to-air refueling of passenger aircraft

This paper describes the conceptual development of a flying boom for air-to-air refuelingof passenger aircraft. This operational concept is currently evaluated within the EC project RECREATE as a possible means to achieve significant increase in overall fuel efficiency. While in military aviation aerial refueling is performed with the tankerflyingahead and above the receiver aircraft, in case of passenger aircraft, safety, cost and comfort criteria suggest to invert the set up. This unconventional configuration would require a different refueling boom, able to extend from the tanker towards the cruiser, against wind and gravity. Amultidisciplinary design optimization framework was set up to size and compare various boom design solutions free of structural divergence and sufficientlycontrollable and with minimum values of weight and drag. Oneconcept, based on an innovative kinematic mechanism, was selected for its ability to meet all design constraints, with weight and drag values comparable to conventiona...

[1]  Philip E. Jones,et al.  Aircraft Fuel Systems , 2009 .

[2]  V. Modi,et al.  Unsteady aerodynamics of stationary elliptic cylinders in subcritical flow , 1969 .

[3]  Matthew A. Bennington,et al.  Aerial Refueling Implications for Commercial Aviation , 2005 .

[4]  Mark Voskuijl,et al.  Control allocation performance for blended wing body aircraft and its impact on control surface design , 2013 .

[5]  Christopher Bolkcom,et al.  Air Force Aerial Refueling Methods: Flying Boom Versus Hose-and-Drogue , 2006 .

[6]  John A. Myers.  HANDBOOK OF EQUATIONS FOR MASS AND AREA PROPERTIES OF VARIOUS GEOMETRICAL SHAPES , 1962 .

[7]  Nicholas P. Jones,et al.  Investigation on 3-D characteristics of flow around a yawed and inclined circular cylinder , 2008 .

[8]  Ira H. Abbott,et al.  Summary of Airfoil Data , 1945 .

[9]  Debra A. Nawrocki,et al.  Investigation of Aerodynamic Alterations for Improving the KC-135 Boom Performance During Aerial Refueling , 1995 .

[10]  A climatological study of Clear Air Turbulence over the North Atlantic , 2013 .

[11]  Jeremy J. Smith.  Simulation of the Dynamically Coupled KC-135 Tanker and Refueling Boom , 2007 .

[12]  J. E. Green,et al.  Greener by Design — the technology challenge , 2002, The Aeronautical Journal (1968).

[13]  John P Campbell,et al.  Experimental verification of a simplified vee-tail theory and analysis of available data on complete models with vee tails , 1945 .

[14]  D. Roylance.  INTRODUCTION TO COMPOSITE MATERIALS , 2000 .