A unified analytical treatment of the cruise performance of subsonic transport aircraft is derived, valid for arbitrary gas turbine powerplant installations: turboprop, turbojet and turbofan powered aircraft. Different from the classical treatment the present report takes compressibility effects into account on the aerodynamic characteristics. Analytical criteria are derived for optimum cruise lift coefficient and Mach number, without and with constraints on the altitude and/or the engine rating. A simple alternative to the Breguet range equation is presented which applies to aircraft cruising at constant altitude and a high Mach number. A practical non-iterative procedure for calculating the mission and reserve fuel loads in the conceptual design stage is proposed as a conclusion of this report. (Copyright (c) 1995, Delft University of Technology.)
Optimum Cruise Performance of Subsonic Transport Aircraft
1995
68 pages
Report
No indication
English
Aerodynamics , Cruising flight , Flight mechanics , Subsonic aircraft , Transport aircraft , Gas turbine engines , Aerodynamic coefficients , Lift , Compressibility effects , Aerodynamic characteristics , Mach number , Distance , Range(Extremes) , Flight altitude , Turboject engines , Turbofan engines , Turboprop engines , Foreign technology , Engine ratings , Fuel loads
Optimum Transverse Span Loading for Subsonic Transport Category Aircraft
Online Contents | 2012
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