RPH preliminary design, trend analysis and initial analysis of the NPS Hummingbird.
Vandiver, James L.
Wood, E. Roberts
MetadataShow full item record
The Department of Aeronautics and Astronautics at the Naval Postgraduate School (NPS) is expanding its helicopter research capabilities in order to facilitate present and future research demands. The rapidly changing needs have already out paced available assets. Therefore it was necessary to design and develop a new remotely piloted helicopter (RPH) that would meet present needs, NOTAR and HHC, and be flexible enough to meet future needs. The research efforts encompassed by this thesis are defining the present needs, investigating what type/size of RPH would fulfill these needs, procuring this asset, and analyzing its capabilities. Based on a defined payload, helicopter trends are analyzed to determine an estimate of the overall RPH size (gross weight) and engine size required. A preliminary design process validates these figures. Choosing to procure an RPH instead of building one, a detailed performance analysis is conducted on the main rotor system. This analysis includes blade vibration analysis, retreating blade stall analysis, and power required analysis. Modification of the RPH's main rotor hub, drive train, and landing gear are studied and recommendations presented. This research effort is a continuation of a long- term program to provide NPS with robust assets to support present and future rotorcraft research efforts.
Approved for public release; distribution is unlimited
Showing items related by title, author, creator and subject.
Naval Postgraduate School Center for Homeland Defense and Security (CHDS) (Monterey, California. Naval Postgraduate SchoolCenter for Homeland Defense and Security, 2009-01);January 2009. In this issue of Homeland Security Affairs we offer one essay that outlines some of the important homeland security issues of 2008 and a set of essays that describes a potentially significant change in the ...
Mortlock, Robert (Monterey, California. Naval Postgraduate School, 2017-07); NPS-AM-17-211This Enhanced Combat Helmet (ECH) case study encourages critical analysis of a U.S. Defense Department project at two key decision points: project start and production. The case centers on the development, testing, and ...
Case study of the United States Marine Corps Advanced Amphibious Assault Vehicle (AAAV) program test and evaluation strategy Buckles, Brian K. (Monterey, California: Naval Postgraduate School, 1999-12);This thesis examined the evolution of the Direct Reporting Program Manager- Advanced Amphibious Assault's test and evaluation strategy from Milestone 0 to the present. The research effort involved reviewing the evolution ...