Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 92
Book Description
Hazard Criteria for Wake Vortex Encounters
Wake Vortex Encounter Hazards Criteria for Two Aircraft Classes
Wake vortex encounter hazard criteria for two aircraft classes
Author: Robert I. Sammonds
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 37
Book Description
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 37
Book Description
A Preliminary Study of a Wake Vortex Encounter Hazard Boundary for a B737-100 Airplane
Wake Vortex Separation Standards
Author: David Burnham
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 92
Book Description
Wake vortex separation standards are used to prevent hazardous wake vortex encounters. A 'safe' separation model can be used to assess the safety of proposed changes in the standards. A safe separation model can be derived from an encounter hazard model and a vortex decay model. This report presents subsequent developments and applications of such a model which was first developed in the early 1980s. A static encounter hazard model is coupled with a decay model based on sodar measurements of vortex decay. The separation standards and procedures used from 1976 to 1994 are assumed to be safe based on the absence of IFR accidents. Various versions of the model are used to assess how aircraft should be classified and to evaluate the safety of a possible four-class aircraft separation system. Recommendations are made for ways of improving the safe separation models.
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 92
Book Description
Wake vortex separation standards are used to prevent hazardous wake vortex encounters. A 'safe' separation model can be used to assess the safety of proposed changes in the standards. A safe separation model can be derived from an encounter hazard model and a vortex decay model. This report presents subsequent developments and applications of such a model which was first developed in the early 1980s. A static encounter hazard model is coupled with a decay model based on sodar measurements of vortex decay. The separation standards and procedures used from 1976 to 1994 are assumed to be safe based on the absence of IFR accidents. Various versions of the model are used to assess how aircraft should be classified and to evaluate the safety of a possible four-class aircraft separation system. Recommendations are made for ways of improving the safe separation models.
A Preliminary Study of a Wake Vortex Encounter Hazard Boundary for a B737-100 Airplane
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781725015630
Category :
Languages : en
Pages : 34
Book Description
A preliminary batch simulation study was conducted to define the wake decay required for a Boeing 737-100 airplane to safely encounter a Boeing 727 wake and land. The baseline six-degree-of-freedom B737 simulation was modified to include a wake model and the strip-theory calculation of the vortex-induced forces and moments. The guidance and control inputs for the airplane were provided by an autoland system. The wake strength and encounter altitude were varied to establish a safe encounter boundary. The wake was positioned such that the desired flight path traversed the core of the port Vortex. Various safe landing criteria were evaluated for defining a safe encounter boundary. A sensitivity study was also conducted to assess the effects of encounter model inaccuracies. Reimer, Heidi M. and Vicroy, Dan D. Langley Research Center NASA-TM-110223, NAS 1.15:110223 RTOP 505-64-13-02...
Publisher: Createspace Independent Publishing Platform
ISBN: 9781725015630
Category :
Languages : en
Pages : 34
Book Description
A preliminary batch simulation study was conducted to define the wake decay required for a Boeing 737-100 airplane to safely encounter a Boeing 727 wake and land. The baseline six-degree-of-freedom B737 simulation was modified to include a wake model and the strip-theory calculation of the vortex-induced forces and moments. The guidance and control inputs for the airplane were provided by an autoland system. The wake strength and encounter altitude were varied to establish a safe encounter boundary. The wake was positioned such that the desired flight path traversed the core of the port Vortex. Various safe landing criteria were evaluated for defining a safe encounter boundary. A sensitivity study was also conducted to assess the effects of encounter model inaccuracies. Reimer, Heidi M. and Vicroy, Dan D. Langley Research Center NASA-TM-110223, NAS 1.15:110223 RTOP 505-64-13-02...
The Federal Aviation Administration Plan for Research, Engineering, and Development
Author: United States. Federal Aviation Administration
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 256
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 256
Book Description
Vortex Wake Hazard Analysis Including the Effect of the Encountering Wing on the Vortex
Author: George Thomas Holbrook
Publisher:
ISBN:
Category :
Languages : en
Pages : 138
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 138
Book Description
Scientific and Technical Aerospace Reports
A Candidate Wake Vortex Strength Definition for Application to the NASA Aircraft Vortex Spacing System (AVOSS)
Author: David A. Hinton
Publisher:
ISBN:
Category : Airports
Languages : en
Pages : 38
Book Description
Publisher:
ISBN:
Category : Airports
Languages : en
Pages : 38
Book Description