16885J/ESD35J-oct1,2002 Breguet Range Equation Change in aircraft weight= fuel burned dw=-c Tdt c=TSPC 3600 T=thrust Solve for dt and multiply by vo to get ds V dw v w ds=vdi d W Set l/D, c, voo constant and integrate R36001L1nW TSFC∞DW empty16.885J/ESD.35J - Oct 1, 2002 Breguet Range Equation • Change in aircraft weight = fuel burned • Solve for dt and multiply by Vf to get ds • Set L/D, ct, Vf constant and integrate dW ctTdt ct TSPC/3600 T thrust ds Vfdt VfdW ctT VfWctT dWW VfL ctD dWW R 3600 TSFCVf LDln WTO Wempty