Patent ID: 9656743
Date: 2017-05-23
CPC Classifications: B32B,B64C,F15D,Y02T,Y10T

Claim:
1. An array of riblets comprising: a plurality of amorphous metal tips having a dimension perpendicular to a vehicle surface of approximately 0.002 inch and moduli of elasticity in a range of about 10-30×106 lb/in2, each amorphous metal tip having a respective base expanding from a bottom of the respective tip such that an internal angle of the base is greater than an internal angle of the tip, said tips having longitudinal gaps to segment the tips; a polymer layer surrounding and at least partially encapsulating the bases to engage each tip supporting said amorphous metal tips in predetermined spaced relation, each of the amorphous metal tips protruding from the polymer forming substantially parallel aerodynamic riblets.