Table 2. Statistical results for the mixed linear model analysis of lift-to-drag ratio L/D, cost-of-transport COT and span efficiency e_i.

		L/D			COT			ei
	DF	F-ratio	r2	DF	F-ratio	r2	DF	F-ratio	r2
Overall Model	7	11.17	0.8574	7	11.86	0.8647	5	18.53	0.8607

Variables are the degrees-of-freedom (DF), F-ratio, the r²-value, t-ratio, and p-values. The p-values in bold are significant.