Since they first entered military and commercial service during the 1950's, U.S.-manufactured turbopropeller engines have proved to be reliable, fuel-efficient propulsion systems for aircraft. Despite their somewhat greater mechanical complexity when compared with turbofans, the repair and maintenance costs of the turboprops compare very favorably with those of the other types, and their substantially reduced fuel consumption and low noise level merit serious consideration for aircraft in an energy and environmentally critical future. Advancements in propeller/fan aerodynamic and structural technologies now permit flight speeds up to Mach 0.85, making turly cost-effective aircraft possible, while retaining present standards of passenger comfort and powerplant reliability. (Kursetz)
Evolution of the turboprop for high speed air transportation
Die Entwicklung von Propellerturbinentriebwerken fuer den Lufttransport mit hohen Geschwindigkeiten
ASME-Papers ; 1-13
1978
13 Seiten, 31 Bilder, 20 Quellen
Aufsatz (Konferenz)
Englisch
The NASA High-Speed Turboprop Program
SAE Technical Papers | 1980
|The NASA high-speed turboprop program
NTRS | 1980
|Advanced turboprop potential for high speed
NTRS | 1980
|The NASA high-speed turboprop program
NTRS | 1980
|The NASA High-Speed Turboprop Program
NTIS | 1980
|