[Retracted] Wind Tunnel Testing and Validation of Helicopter Rotor Blades Using Additive Manufacturing

Table 7

Comparison of experimental aerodynamic efficiency.

S. no.	Velocity	L/D NASA SC(2)-0714	L/D HH02	% of improvement
1	10	17.46	11.05	36.71249
2	14	18.44	10.58	42.62473
3	19	19.23	12.65	34.21737
4	25	19.7	12.54	36.34518
5	30	20.92	15.49	25.95602
6	35	21.18	15.46	27.00661