| US 7,530,787 B2 | ||
| Rotor hub fairing system for a counter-rotating, coaxial rotor system | ||
| Fabio P. Bertolotti, South Windor, Conn. (US); Mark W. Scott, Bethany, Conn. (US); Brian E. Wake, South Glastonbury, Conn. (US); T. Alan Egolf, Glastonbury, Conn. (US); Duane C. McCormick, Colchester, Conn. (US); Ebru Usta, Glastonbury, Conn. (US); and Stuart S. Ochs, Manchester, Conn. (US) | ||
| Assigned to Sikorsky Aircraft Corporation, Stratford, Conn. (US) | ||
| Filed on May 18, 2006, as Appl. No. 11/436,362. | ||
| Application 11/436362 is a continuation in part of application No. 11/141246, filed on May 31, 2005, granted, now 7,229,251. | ||
| Prior Publication US 2007/0166163 A1, Jul. 19, 2007 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. B64C 27/50 (2006.01) | ||
| U.S. Cl. 416—33 [416/124; 416/128; 416/134 A; 416/204 R] | 23 Claims |
| 1. A rotor hub fairing system for a counter rotating coaxial rotor system comprising:
an upper hub fairing defined about an axis;
a lower hub fairing defined about said axis; and
an airfoil-shaped shaft fairing between said upper hub fairing and said lower hub fairing, said airfoil-shaped shaft fairing
contoured to reduce a total drag of the rotor hub fairing system, said shaft fairing defines a thickness to hub fairing diameter
(t/D) greater than 0.35.
|