The current status of general aviation technology

1975 ◽  
Author(s):  
S. GREEN
Biomimetics ◽  
2022 ◽  
Vol 7 (1) ◽  
pp. 11
Author(s):  
Michelangelo Giuliani ◽  
Ignazio Dimino ◽  
Salvatore Ameduri ◽  
Rosario Pecora ◽  
Antonio Concilio

In a previous paper, the authors dealt with the current showstoppers that inhibit commercial applicability of morphing systems. In this work, the authors express a critical vision of the current status of the proposed architectures and the needs that should be accomplished to make them viable for installation onboard of commercial aircraft. The distinction is essential because military and civil issues and necessities are very different, and both the solutions and difficulties to be overcome are widely diverse. Yet, still remaining in the civil segment, there can be other differences, depending on the size of the aircraft, from large jets to commuters or general aviation, which are classifiable in tourism, acrobatic, ultralight, and so on, each with their own peculiarities. Therefore, the paper aims to trace a common technology denominator, if possible, and envisage a future perspective of actual applications.


Author(s):  
Michelangelo Giuliani ◽  
Ignazio Dimino ◽  
Salvatore Ameduri ◽  
Rosario Pecora ◽  
Antonio Concilio

In a previous paper, the authors dealt with the current showstoppers for morphing systems and with the reasons that have inhibited their commercial applicability. In this work, the authors ex-press a critical vision of the current status of the proposed architectures and the needs that should be accomplished to make them viable for installation onboard of commercial aircraft. The distinc-tion is essential because military and civil issues and necessities are very different, and both the solutions and difficulties to be overcome are widely diverse. Yet, still remaining in the civil seg-ment, there can be other differences, depending on the size of the aircraft, from large jets to com-muters or general aviation, in turn classifiable in tourism, acrobatic, ultralight and so on, each with their own peculiarities. Therefore, the paper wants to try to trace a common technology de-nominator, if possible, and envisage a future perspective of actual applications.


Author(s):  
D. L. Bresnahan ◽  
G. K. Sievers

A two-phase program is being conducted by NASA’s Lewis Research Center to determine the suitability of large engine technology to reduce noise, emissions and fuel consumption of smal turbine engines and develop new technology where required. In Phase I, six-month study contracts were awarded to three manufacturers of small turbine engines to provide NASA with information required to prescribe the most effective experimental engine program (QCGAT) The results of this study phase showed reduced noise levels for the three engines at takeoff, sideline, and approach and emissions predictions that met the 1979 EPA standards for Class T1 engines. For the second phase, two contractors bid and both were selected to design, fabricate, assemble, test, and deliver experimental engines to NASA, The current status of this phase is discussed.


Author(s):  
Robert E. Mount ◽  
Gaston Guaroa

Substantial progress has been made over the past two years in the technological status and production aspects of Stratified Charge Rotary Engines, a new propulsion technology for aircraft of the 1990’s. A 400 HP aircraft engine, designed in cooperation with Avco-Lycoming (during late 1986) is currently undergoing testing at John Deere’s Rotary Engine Division. Current status and design features are reported in this paper and related to overall research and technology enablement efforts toward several families of advanced liquid cooled, turbocharged and intercooled engines over a wide power range for commercial general aviation. Capabilities for high altitude, long endurance, military unmanned aircraft missions are examined. Application to fixed and rotary wing aircraft are planned.


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