Author: Peter A. Mansbach
Publisher:
ISBN:
Category : Airport noise
Languages : en
Pages : 103
Get Book Here
Book Description
The FAA Integrated Noise Model computer program INMPROG has been made available to the public for computing a variety of noise indices in the vicinity of airports. One component of this program package is a data library which provides both acoustic and operational data for certain standard aircraft types and flight procedures. This paper presents the data used to construct the supplied program library. It thus provides the information needed to reproduce a particular analysis. Further, it provides a necessary reference point for the user who specifies his own operational procedures. (Author).
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 102
Get Book Here
Book Description
The FAA Integrated Noise Model computer program INMPROG has been made available to the public for computing a variety of noise indices in the vicinity of airports. One component of this program package is a data library which provides both acoustic and operational data for certain standard aircraft types and flight procedures. This paper presents the data used to construct the supplied program library. It thus provides the information needed to reproduce a particular analysis. Further, it provides a necessary reference point for the user who specifies his own operational procedures. (Author).
Author: George W Flathers (II.)
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 61
Get Book Here
Book Description
The Federal Aviation Administration's Integrated Noise Model (INM) is a series of computer programs designed to estimate environmental noise levels in the vicinity of an airport. As part of MITRE's efforts to validate INM computations for the FAA, a comparison was made between arrival and departure profiles contained in the INM data base and those observed in actual operations at the Seattle-Tacoma International Airport. ARTS-III radar data were used to determine actual altitude and velocities of aircraft at various distances from the runway during arrival and departure operations. This report presents the results of the comparison.
Author: United States. Federal Aviation Administration. Office of Environmental Quality
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 124
Get Book Here
Book Description
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781720710257
Category :
Languages : en
Pages : 56
Get Book Here
Book Description
The FAA's Integrated Noise Model (INM) relies on the methods of the SAE AIR-1845 'Procedure for the Calculation of Airplane Noise in the Vicinity of Airports' issued in 1986. Simplifying assumptions for aerodynamics and noise calculation were made in the SAE standard and the INM based on the limited computing power commonly available then. The key objectives of this study are 1) to test some of those assumptions against Boeing source data, and 2) to automate the manufacturer's methods of data development to enable the maintenance of a consistent INM database over time. These new automated tools were used to generate INM database submissions for six airplane types :737-700 (CFM56-7 24K), 767-400ER (CF6-80C2BF), 777-300 (Trent 892), 717-200 (BR7 15), 757-300 (RR535E4B), and the 737-800 (CFM56-7 26K).Shepherd, Kevin P. (Technical Monitor) and Forsyth, David W. and Gulding, John and DiPardo, JosephLangley Research CenterAIRCRAFT NOISE; NOISE PREDICTION (AIRCRAFT); AIRCRAFT MODELS; AERODYNAMIC NOISE; JET AIRCRAFT; AIRPORTS; EXTRAPOLATION; DATA BASES; WEIGHT (MASS); THRUST DISTRIBUTION
Author: Gregg G. Fleming
Publisher:
ISBN:
Category : Airport noise
Languages : en
Pages : 84
Get Book Here
Book Description
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781721946310
Category :
Languages : en
Pages : 266
Get Book Here
Book Description
The FAA's Integrated Noise Model (INM) is widely used to estimate noise in the vicinity of airports. This study supports the development of standards by which the fleet data in the INM can be updated. A comparison of weather corrections to noise data using INM Spectral Classes is made with the Boeing integrated method. The INM spectral class method is shown to work well, capturing noise level differences due to weather especially at long distances. Two studies conducted at the Denver International Airport are included in the appendices. The two studies adopted different approaches to modeling flight operations at the airport. When compared to the original, year 2000, results, it is apparent that changes made to the INM in terms of modeling processes and databases have resulted in improved agreement between predicted and measured noise levels. Forsyth, David W. and Follet, Jesse I. Langley Research Center NAS1-00086; WBS 23-781-50-21
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 105
Get Book Here
Book Description
The FAA Integrated Noise Model (INM) provides a conceptually simple method for characterizing aircraft noise near airports. It includes a determination of the total time that the sound level exceeds six different thresholds, and also the equivalent A-weighted sound level, L sub eq, and the day-night average sound level, L sub dn, at a number of points surrounding a particular airport. Evening and nighttime exposures are broken out separately. Thus, several methodologies are integrated into a single model which provides a very complete picture of the noise environment. The computer program INMPROG is available to calculate all of the above information and to present it in tabular form. Plotter output is also generated, for contours of equal exposures to levels above 85 dBA. Equal L sub dn contours may be produced instead, at the user's option. This manual is intended to guide the user of the model through the preparation of data required by this program. A description of the airport and its operations must be assembled onto data forms. A separate chapter specifies the punched card formats, so that the punching of cards is distinct from the collection of data. Technical appendices provide the information required for a computer center to bring up and run the program. (Author).
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 58
Get Book Here
Book Description
Author: United States. Federal Aviation Administration
Publisher:
ISBN:
Category : Airports
Languages : en
Pages : 48
Get Book Here
Book Description
