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Summary of Measurements, Data and Analysis for the MD 600N Helicopter

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Summary of Measurements, Data and Analysis for the MD 600N Helicopter DOT-VNTSC-FAA-03-11 Crows Landing Noise Measurement Study: Summary of Measurements, Data and Analysis for the MD 600N Helicopter Clay N. Reherman Christopher J. Roof Gregg G. Fleming David R. Read U.S. Department of Transportation Research and Special Programs Administration John A. Volpe National Transportation Systems Center Environmental Measurement and Modeling Division, DTS-34 Cambridge, MA 02142 May 2004 U.S. Department of Transportation Federal Aviation Administration Notice This document is disseminated under the sponsorship of the Department of Transportation in the interest of information exchange. The United States Government assumes no liability for its contents or use thereof. Notice The United States Government does not endorse products or manufacturers. Trade or manufacturers’ names appear herein solely because they are considered essential to the objective of this report. REPORT DOCUMENTATION PAGE Form Approved OMB No. 0704-0188 Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to Washington Headquarters Services, Directorate for Information Operations and Reports, 1215 Jefferson Davis Highway, Suite 1204, Arlington, VA 22202-4302, and to the Office of Management and Budget, Paperwork Reduction Project (0704-0188), Washington, DC 20503. 1. AGENCY USE ONLY (Leave blank) 2. REPORT DATE 3. REPORT TYPE AND DATES COVERED Letter Report, November 1996 May 2004 4. TITLE AND SUBTITLE 5. FUNDING NUMBERS Crows Landing Noise Measurement Study: Summary of Measurements, Data and Analysis for the MD 600N Helicopter FA-53/AS032 FA-65/AS033 6. AUTHOR(S) Clay N. Reherman(1), Christopher J. Roof(1), Gregg G. Fleming(1), and David R. Read(1) 7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) 8. PERFORMING ORGANIZATION (1) U.S. Department of Transportation REPORT NUMBER Research and Special Programs Administration John A. Volpe National Transportation Systems Center DOT-VNTSC-FAA-03-11 Environmental Measurement and Modeling Division, DTS-34 Cambridge, MA 02142 9. SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES) 10. SPONSORING/MONITORING AGENCY REPORT NUMBER Office of Environment and Energy Federal Aviation Administration 800 Independence Avenue, S.W. Washington, DC 20591 11. SUPPLEMENTARY NOTES FAA Program Managers: Sandy Liu and John Gulding, AEE-100 12a. DISTRIBUTION/AVAILABILITY STATEMENT 12b. DISTRIBUTION CODE This document is available to the public through the National Technical Information Service, Springfield, VA 22161 13. ABSTRACT (Maximum 200 words) The U.S. Department of Transportation, John A. Volpe National Transportation Systems Center (Volpe Center), Environmental Measurement and Modeling Division, provided technical support to the Federal Aviation Administration, as a part of a National Rotorcraft Technology Center project to evaluate helicopter noise abatement approach procedures. In November 1996, the Volpe Center measured noise for MD Helicopters Inc.’s MD 600N helicopter. This document describes the planning and execution of the study at National Aeronautics and Space Administration Ames Crows Landing Test Facility in Crows Landing, California. Additionally, the data reduction procedures and data adjusted to standard conditions are presented. 14. SUBJECT TERMS 15. NUMBER OF PAGES Aircraft noise, helicopters, noise measurements, noise, Integrated Noise Model, INM 39 16. PRICE CODE 17. SECURITY CLASSIFICATION 18. SECURITY CLASSIFICATION 19. SECURITY CLASSIFICATION 20. LIMITATION OF ABSTRACT OF REPORT OF THIS PAGE OF ABSTRACT Unclassified Unclassified Unclassified Unlimited NSN 7540-01-280-5500 Standard Form 298(Rev. 2-89) Prescribed by ANSI Std. 239-18 298-102 METRIC/ENGLISH CONVERSION FACTORS ENGLISH TO METRIC METRIC TO ENGLISH LENGTH (APPROXIMATE) LENGTH (APPROXIMATE) 1 inch (in) = 2.5 centimeters (cm) 1 millimeter (mm) = 0.04 inch (in) 1 foot (ft) = 30 centimeters (cm) 1 centimeter (cm) = 0.4 inch (in) 1 yard (yd) = 0.9 meter (m) 1 meter (m) = 3.3 feet (ft) 1 mile (mi) = 1.6 kilometers (km) 1 meter (m) = 1.1 yards (yd) 1 kilometer (km) = 0.6 mile (mi) AREA (APPROXIMATE) AREA (APPROXIMATE) 1 square inch (sq in, in2) = 6.5 square centimeters 1 square centimeter (cm2) = 0.16 square inch (sq in, in2) (cm2) 1 square foot (sq ft, ft2) = 0.09 square meter (m2) 1 square meter (m2) = 1.2 square yards (sq yd, yd2) 1 square yard (sq yd, yd2) = 0.8 square meter (m2) 1 square kilometer (km2) = 0.4 square mile (sq mi, mi2) 1 square mile (sq mi, mi2) = 2.6 square kilometers 10,000 square meters (m2) = 1 hectare (ha) = 2.5 acres (km2) 1 acre = 0.4 hectare (he) = 4,000 square meters (m2) MASS - WEIGHT (APPROXIMATE) MASS - WEIGHT (APPROXIMATE) 1 ounce (oz) = 28 grams (gm) 1 gram (gm) = 0.036 ounce (oz) 1 pound (lb) = 0.45 kilogram (kg) 1 kilogram (kg) = 2.2 pounds (lb) 1 short ton = 2,000 = 0.9 tonne (t) 1 tonne (t) = 1,000 kilograms (kg) pounds (lb) = 1.1 short tons VOLUME (APPROXIMATE) VOLUME (APPROXIMATE) 1 teaspoon (tsp) = 5 milliliters (ml) 1 milliliter (ml) = 0.03 fluid ounce (fl oz) 1 tablespoon (tbsp) = 15 milliliters (ml) 1 liter (l) = 2.1 pints (pt) 1 fluid ounce (fl oz) = 30 milliliters (ml) 1 liter (l) = 1.06 quarts (qt) 1 cup (c) = 0.24 liter (l) 1 liter (l) = 0.26 gallon (gal) 1 pint (pt) = 0.47 liter (l) 1 quart (qt) = 0.96 liter (l) 1 gallon (gal) = 3.8 liters (l) 1 cubic foot (cu ft, ft3) = 0.03 cubic meter (m3) 1 cubic meter (m3) = 36 cubic feet (cu ft, ft3) 1 cubic yard (cu yd, yd3) = 0.76 cubic meter (m3) 1 cubic meter (m3) = 1.3 cubic yards (cu yd, yd3) TEMPERATURE (EXACT) TEMPERATURE (EXACT) [(x-32)(5/9)] °F = y °C [(9/5) y + 32] °C = x °F QUICK INCH - CENTIMETER LENGTH CONVERSION 0 1 2345 Inches Centimeters 0126 3 4 5 7138 9 10 1112 QUICK FAHRENHEIT - CELSIUS TEMPERATURE CONVERSION °F -40° -22° -4° 14° 32° 50° 68° 86° 104° 122° 140° 158° 176° 194° 212° °C -40° -30° -20° -10° 0° 10° 20° 30° 40° 50° 60° 70° 80° 90° 100° For more exact and or other conversion factors, see NIST Miscellaneous Publication 286, Units of Weights and Measures. Price $2.50 SD Catalog No. C13 10286 Updated 6/17/98 iii iv Table of Contents Section Page List of Figures.................................................................................................................................. vii List of Tables .................................................................................................................................... ix 1.0 INTRODUCTION ................................................................................................................. 1 1.1 Objective........................................................................................................................ 1 1.2 Schedule......................................................................................................................... 1 2.0 TEST HELICOPTER DESCRIPTION.................................................................................. 2 2.1 MD 600N Helicopter ..................................................................................................... 3 3.0 SETUP ................................................................................................................................... 5 3.1 Measurement Facility..................................................................................................... 5 3.2 Aircraft Positioning Instrumentation ............................................................................. 6 3.3 Acoustic Instrumentation............................................................................................... 6 3.4 Meteorological Instrumentation..................................................................................... 7 4.0 TEST SERIES DESCRIPTION............................................................................................. 8 5.0 DATA ANALYSIS.............................................................................................................. 10 5.1 Data Reduction............................................................................................................. 11 5.2 Data Processing............................................................................................................ 11 6.0 RESULTS ............................................................................................................................ 13 6.1 NPD Curves ................................................................................................................ 13 6.1.1 Reference Speed Duration Adjustment............................................................ 13 7.0 REFERENCES .................................................................................................................... 15 APPENDIX A: METEOROLOGICAL DATA............................................................................ A-1 APPENDIX B: TRACKING DATA ............................................................................................ B-1 APPENDIX C: HELICOPTER NOISE NPD TABLES............................................................... C-1 C.1 MD 600N NPD Tables............................................................................................. C-1 C.2 LAE NPD Plots.........................................................................................................
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