Engineering topics
Publications and source records attributed to Huston, R. J..
An overview of the carbon fiber hazard assessment is presented. The potential risk to the civil sector associated with the accidental release of carbon fibers from aircraft having composite structures was assessed along with the need for protection of civil aircraft from carbon fibers.
The results of studies on the risk due to the use of carbon fibers in aircraft are assessed. Assumptions such as additional fire protection in the aircraft, new structural concepts, and the development of unique carbon composites are evaluated. Some findings from the national risk profile including equipment vulnerability and economic impact are discussed.
Results of an assessment of the public risk associated with the release of carbon fibers from crash-fire accidents of civil aircraft having carbon composite structures are presented. The overall national impact is shown to be extremely low in 1993. Personal injury is found to be extremely unlikely. Based on these findings, the risk of electrical failure from carbon fibers should not prevent the exploitation of composites in aircraft, and additional protection of aircraft avionics to guard aginst carbon fibers is unnecessary.
The assessment of the carbon fiber hazard is outlined. Program objectives, requirements of the risk analysis, and elements associated with the physical phenomena of the accidental release are described.
It was concluded that preliminary estimates indicate that the public risk due to accidental release of carbon fiber from air transport aircraft is small. It was also concluded that further work is required to increase confidence in these estimates.
Wind tunnel investigation of helicopter directional control in rearward flight in ground effect
Main rotor wake adverse effects on tail rotor directional control in low velocity wind
Wind tunnel and analytical study of conversion from wing lift to rotor lift on composite lift VTOL aircraft
Wind tunnel investigation of steady state aerodynamics of composite lift VTOL aircraft model combining rotary and fixed wings
Conversion from wing borne to rotor borne flight
Blade and rudder control for attitude stability during conversion from wing-borne to rotor-borne flight
Flight investigation of control qualities of rudimentary hingeless rotor helicopter
Flight and wind tunnel tests of hingeless helicopter rotor
Wind tunnel measurements, blade motions, and blade air loads for tandem-rotor helicopters
Wing and flap loads of v/stol aircraft - wind tunnel study
Wind-tunnel tests and analytical studies which indicate power requirements of tandem-rotor helicopters in forward flight
Propeller slipstream effects as determined from wing pressure distribution of a large-scale six-propeller vtol model at static thrust