Accession Number:

AD0780973

Title:

Aerodynamic and Dynamic Problems Relating to Heavy-Lift Helicopters.

Descriptive Note:

Final rept. 1 Sep 70-23 Feb 74,

Corporate Author:

PENNSYLVANIA STATE UNIV UNIVERSITY PARK DEPT OF AEROSPACE ENGINEERING

Personal Author(s):

• McCormick,Barnes W.

Report Date:

1974-05-06

Pagination or Media Count:

20.0

Abstract:

The report is descriptive in nature. For specifics of the technical accomplishment achieved under these grants, the reader is referred to the four theses by Potter, Rudy, Egolf and Pepin listed in the references. The first three of these theses have been completed and were prepared in partial fulfillment of the requirements for the Master of Science degree. Pepins thesis is a Ph.D. dissertation which could not be completed before the expiration of the grant. It is currently being written and should be available shortly. All of these studies are generally related to helicopter applications although the specific motivation for their undertaking was initially the heavy-lift helicopter. The remainder of this report summarizes the findings of these investigators. Modified author abstract

Descriptors:

• *Helicopters
• *Helicopter rotors
• Wake
• Aerodynamics
• Aspect ratio
• Dynamic response
• Vortices

Subject Categories:

• Aerodynamics
• Helicopters

Distribution Statement:

APPROVED FOR PUBLIC RELEASE