Reference Material for a Proposed Formation Flight System
Reference Material for a Proposed Formation Flight System J.-B. Brachet, R. Cleaz, A. Denis, A. Diedrich, D. King, P. Mitchell, D. Morales, J. Onnée, T. Robinson, O. Toupet, B. Wong∗ Department of Aeronautics and Astronautics Massachusetts Institute of Technology Cambridge, MA 02139 ∗ Graduate students. This paper is an outgrowth of the spring 2004 Air Transportation Systems Architecting subject. 1 J.-B. Brachet, R. Cleaz, A. Denis, A. Diedrich, D. King, P. Mitchell, D. Morales, J. Onnée, T. Robinson, O. Toupet, B. Wong Table of Contents I. Formation Flight Aerodynamics and Performance ...................................................5 A. Naturally occurring examples ..............................................................................6 B. Aerodynamic background ....................................................................................7 C. Performance benefits from formation flight..........................................................8 D. The theoretical “sweet spot” ..............................................................................10 E. Transport Aircraft Wake ....................................................................................11 F. The real sweet spot and potential benefits ..........................................................12 G. Station-keeping precision...................................................................................14 H. Shape of the formation.......................................................................................16 II. General study of the
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