Rigid coaxial rotor helicopter with dual auxiliary propulsion
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Description
FIG. 1 is a perspective view of the rigid coaxial rotor helicopter with dual auxiliary propulsion;
FIG. 2 is another perspective view thereof;
FIG. 3 is a left side elevational view thereof;
FIG. 4 is a right side elevational view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof;
FIG. 7 is a front elevational view thereof; and,
FIG. 8 is a rear elevational view thereof.
Claims
The ornamental design for a rigid coaxial rotor helicopter with dual auxiliary propulsion, as shown and described.
Referenced Cited
Patent History
Patent number: D524718
Type: Grant
Filed: May 31, 2005
Date of Patent: Jul 11, 2006
Assignee: Sikorsky Aircraft Corporation (Stratford, CT)
Inventors: Mark W. Scott (Bethany, CT), William J. Eadie (Cheshire, CT)
Primary Examiner: Marcus A. Jackson
Application Number: 29/231,086
Type: Grant
Filed: May 31, 2005
Date of Patent: Jul 11, 2006
Assignee: Sikorsky Aircraft Corporation (Stratford, CT)
Inventors: Mark W. Scott (Bethany, CT), William J. Eadie (Cheshire, CT)
Primary Examiner: Marcus A. Jackson
Application Number: 29/231,086
Classifications