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Comparison of advanced turboprop and turbofan airplanes
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Johnson, V. S. |
| Copyright Year | 1983 |
| Description | Results of a parametric study to determine the effects of design variables and penalties on the fuel efficiency of Mach 0.8, 125-passenger, advanced turboprop airplanes show that propeller-wing interference penalty has a major effect. Propeller tip speed has a minor effect, and could be decreased to alleviate the noise problem without significant effects on fuel efficiency. The anticipated noise levels produced by the propfan will require additional acoustical treatment for the fuselage; this additional weight can have a significant effect on fuel efficiency. The propfan advantage over an equivalent technology turbofan is strongly dependent on the interference penalty and acoustical treatment weight. Lowering the cruise Mach number to around 0.73 would result in greatly increased fuel efficiency. |
| File Size | 851530 |
| Page Count | 29 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19830027751 |
| Archival Resource Key | ark:/13960/t4pk5719j |
| Language | English |
| Publisher Date | 1983-09-01 |
| Access Restriction | Open |
| Subject Keyword | Aircraft Design, Testing And Performance Turbofan Aircraft Blade Tips Turboprop Aircraft Wings Propellers Engine Noise Fuselages Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
