Development of Dynamic Model Rotor Blades for High Speed Helicopter Research

Title: Development of Dynamic Model Rotor Blades for High Speed Helicopter Research
Report Number: RTD-TDR-63-4197 Part I, p. 431
Creator: Fradenburgh, Evan A.; Kiely, Edmond F.
Laboratory: Air Force Flight Dynamics Laboratory
Date: 1964
Date Issued: 1964-03
Extent: 76
Abstract: The development at Sikorsky Aircraft of scale model helicopter rotor blades which are dynamically and structurally similar to full scale blades is presented in terms of the need for such models, problems associated with the construction of the blades, testing experience, and useful information gained by this research. Experimental results obtained include data on performance, blade motions, elastic deformations, steady and vibratory blade stresses, and rotor vibration phenomena. In addition to experience with blades designed to operate at full scale tip speeds and Mach numbers, modifed blades have been developed to provide full scale Froude numbers and thus proper gravity effects as well as allowing higher simulated forward speeds. These blades allow experimental research on rotary wing aircraft in the 400 knot category.
Distribution Classification: 1
Distribution Conflict: No
DTIC Record Exists: No
Illinois Tech Related: No
Photo Quality: Complete
Report Availability: Full text available
Type: article
Is Part Of: Proceedings of Symposium on Aeroelastic & Dynamic Modeling Technology
Provenance: Bombardier/Aero