M_cruise	0.8
M_landing	0.2
cLalpha_cruise	0.0559
cLalpha_landing	0.053
cMalpha_cruise	-0.0636
efficiency	1.016
	
alt_cruise	35000
weight_cruise	160000
	
	
cL0	0.0624
cM0	-0.0894
cd_correction	0
c_f	0.003