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. Author manuscript; available in PMC: 2018 Jan 16.
Published in final edited form as: J Aircr. 2016 Mar 10;53(5):1305–1316. doi: 10.2514/1.C033490

Table 7.

Components of the gradient vector at the optimum solutions for steady level flights

dD/dx^i
 C1 C1+C2 C1+C2+C3 C1+C2+C3+Variable speed
Speed – – – 0.3930
Body pitch angle 0.3906 0.3905 0.3900 0.3915
Thrust 0 0 0 0
Mode 1 0.0010 0.0028 −0.1637 −0.0690
Mode 3 0.0106 0.0086 0.0135 0.0075
Mode 5 0.8487 0.8480 0.8605 0.6404
Mode 7 0.0001 0.0003 −0.0002 −0.0002
Mode 8 −0.0020 −0.0020 −0.0021 −0.0018
Mode 10 −0.0001 −0.0001 −0.0001 −0.0001
Mode 12 0.0174 0.0156 0.0166 0.0135