Engineering topics

Zigan, S.

Publications and source records attributed to Zigan, S..

4 records

NASA NTRS1973

Propulsion system for research VTOL transports.

In anticipation of an eventual VTOL requirement for civil aviation, NASA has been conducting studies directed toward determining and developing the technology required for a commercial VTOL transport. The commercial transport configurations of such a VTOL transport are briefly reviewed, the propulsion system specifications and components developed by the engine study contractor are presented and described, and methods for using the lift-propulsion system for aircraft attitude control are discussed.

Gertsma, L. W.↗

NASA NTRS1973

Propulsion system for research VTOL transports

In anticipation of an eventual VTOL requirement for civil aviation, NASA has been conducting studies directed toward determining and developing the technology required for a commercial VTOL transport. In this paper, the commercial transport configurations are briefly reviewed; the propulsion system specifications and components developed by the engine study contractor are presented and described; and methods for using the lift-propulsion system for aircraft attitude control are discussed.

Gertsma, L. W.↗

NASA NTRS1972

Design studies of lift fan engines suitable for use in civilian VTOL aircraft.

Preliminary engine design studies have been made of two general types of low-pressure-ratio lift fan engines that are receiving increasing attention as a means to provide low-speed lift for large civilian VTOL transports. The two engine types are integral fans and remote powered fans. A portion of the results of these design studies is summarized, including the crucial engine requirements, and some of the characteristics of the emerging engine designs of each type.

Roelke, R. J.↗

NASA NTRS1972

Design studies of lift fan engines suitable for use in civilian VTOL aircraft

Low pressure ratio fan engines are receiving increasing attention as a means to provide low speed lift for civilian VTOL transports. Two general types of fan lift engines that are being studied are integral fans and remote power fans. Preliminary engine design studies of both types of lift fan systems have been made. The paper summarizes a portion of the results of the engine design studies, including the crucial engine requirements, and some of the characteristics of the emerging engine designs of each type.

Roelke, R. J.↗