U.S. Environmental Protection Agency
Office of Noise Abatement and Control
     Washington, D.C. 20460
EPA 550/9-77-450
 ADDENDUM 1
                     . ^
-------
 I. REPORT NO.    EPA
        ADDENDUM 1
                                    TECHNICAL REPORT DATA
                            (f lease read instructions on the reverse before completing)
                            3. RECIPIENT'S ACCESSION NO.
4. TITLE AND SUBTITLE
        Sound  Exposure Levels  (SEL)  Chart for Civil  Jet
        Transport Aircraft Takeoffs  Using ATA Procedures
        (Adopted December 1976)
                            5. REPORT OATE
                                January  1978
                            6. PERFORMING ORGANIZATION CODE
                              Bolt, Beranek & Newman
7. AUTKOR(S)
        Bishop',  D.E. , Siedman,  H. ,  and Walker, D. Q.
                                                            8. PERFORMING ORGANIZATION REPORT NO.
                                    10357
9. PERFORMING ORGANIZATION NAME AND AOORESS

        Bolt,  Beranek & Newman,  Inc.
        P.O. Box 633
        Canoga Park, California   91305
                            10. PROGRAM ELEMENT NO.
                            tl. CONTRACT/GRANT NO.
                                EPA G8-01-4388
 12. SPONSORING AGENCY NAME AND ADDRESS

        Office  of Noise Abatement  and Control
        U.S.  Environmental Protection Agency
        Washington, D.C.  20U60
                             13. TVP
                                  EOF REPORT AND PERIOD COVERED
                                  Final
                            14. SPONSORING AGENCY CODE

                                  EPA/ONAC
 IS. SUPPLEMENTARY NOTES
        EPA  550/9-77-^50, presented a method for the  manual calculation  of
        day-night average sound  levels (L,  ) due to  aircraft operations.
        Information was presented for different aircraft and different
        operational procedures.   Addendum I presents  the additional  information
        needed to predict the Noise levels produced by aircraft which utilize
        the  Air Transport Association (ATA) procedures which were adopted
        December 1976.
17.
a.
KEY WORDS AND DOCUMENT ANALYSIS
                  DESCRIPTORS
                                               b.lDENTIFIERS/OPEN ENDED TERMS
                                             COSATi Field/Group
        Noise  levels, aircraft noise levels,
        day-night average noise  levels,
        noise  level prediction,  airport
        noise  levels
        iUTION STATEMENT

        Release  Unlimited
               19, SECURITY CLASS (TMl Report)
                  Unclassified
21. NO. OF PAGES
                                               30. SECURITY CLASS (Thltpage)
                                                  Unclassified
                                          22. PRICE
EPA Form »20-t (9-73)

-------
                                                 EPA 550/9-77-450
                                                   ADDENDUM 1
  SOUND EXPOSURE LEVELS (SEL) CHARTS FOR

  CIVIL JET TRANSPORT AIRCRAFT TAKEOFFS

            USING ATA PROCEDURES
             (Adopted December 1976)
                   January 1978
                   Prepared for:

        U.S. Environmental Protection Agency
        Office of Noise Abatement and Control

           Under Contract No. 68-01-4388
This  report  has been approved for  general availability. The
contents of this report reflect the views of the contractor, who is
responsible for the facts and the accuracy of the data presented
herein, and do not necessarily reflect the official views of policy
of EPA. This report does not constitute a standard, specification,
or regulation.

-------
                       ADDENDUM I
          SOUND EXPOSURE LEVEL (SEL) CHARTS FOR
       CIVIL JET TRANSPORT AIRCRAFT TAKEOFFS USING
          ATA PROCEDURES ADOPTED DECEMBER 1976

     This addendum presents sound exposure level (SEL) charts
for civil jet transport takeoffs based on the revised air
transport association (ATA) procedures adopted in December
1976.  For studies of current and forecast operations
involving air transport aircraft using ATA procedures, these
charts (as shown in the table below) should replace the
takeoff charts given in Attachment 1, Calculations of Day-
Night Levels (L.) Resulting From Civil Aircraft Operations,
EPA Report 550/9-77-450.
                                       Replace Rept.
                                       550/9-77-450    With
Aircraft Types
4-Engine LBPR turbofan
4-Engine LBPR turbofan
(quiet nacelle)
3-Engine LBPR turbofan
3-Engine LBPR turbofan
(quiet nacelle)
2-Engine LBPR
2-Engine LBPR turbofan
(quiet nacelle)
4-Engine HBPR turbofan
4-Engine HBPR turbofan
(quiet nacelle)
3-Engine HBPR turbofan
Aircraft
Code
4-T-TFL
4-T-TFL(Q)
3-T-TFL
3-T-TFL(Q)
2-T-TFL
2-T-TFL(Q)
4-T-TFH
4-T-TFH (Q)
3-T-TFH
Attachment 1
Pages
80-88
111-119
142-1/17
164-169
186-191
208-213
229-237
260-268
291-299
Addendum
Pages
10-18
19-27
28-33
34-39
40-45
46-51
52-60
61-69
70-78
     The ATA procedures adopted in December 1976 differ in some
details from those used previously.  A comparison of procedures
is given in Table 1. A comparison of takeoff profiles for a
                           - 3 -

-------
Boeing 727 aircraft is given in Figure 1.*  Note that as in the
examples shown in Figure 1, the cutback to climb thrust is
usually initiated at a lower altitude in the current ATA
procedures than in the previous ATA procedures.  Hence, aircraft
taking off under the current procedures generally require a
longer distance from the start of takeoff roll to reach a
height of 3,000 feet.
     Figures 2 through 6 show the takeoff profiles for the
revised ATA procedures which were utilized to develop the SEL
charts given in this addendum.  These takeoff profiles may be
compared with those given in Figures 2-3 through 2-7 of EPA
Report 550/9-77-450.**
 *Detailed differences   in the  procedures  will  occur  with
  aircraft type.
 **EPA Report 550/9-77-^50 "Calculation of Day-Night  Levels  (L,  )
                                                              an'
   Resulting from Civil  Aircraft  Operations," January 1977.

-------
         TABLE  I - COMPARISON OF ATA TAKEOFF PROCEDURES FOR CIVIL TURBOFAN TRANSPORT AIRCRAFT
   First Phase
    Second  Phase
 i
Ul
    Third  Phase
 Procedures Adopted August 1972
Takeoff to 1500 ft.
Takeoff (TO) thrust
V2 + 10 airspeed
TO flaps
1500 to 3000 ft.
Reduce thrust to maximum
climb thrust
Maintain Vp + 10 airspeed
and TO flaps
3000 ft. and Above
Accelerate to 250 kt, retract
flaps on schedule while main-
taining 500 FPM climb, then
climb at 250 Kt.
 Procedures Adopted December 1976.
Takeoff to 1000 ft.
Takeoff (TO) thrust
V2 + 10 airspeed
TO flaps
1000 to 3000 ft.
Reduce aircraft pitch to maintain 500
to 1000 rpm climb rate.  Accelerate and
initiate flap retraction at appropriate
minimum speeds.  Reduce engine power to
climb thrust during/following* cleanup
of flaps and slats.  Climb to 3000 ft.
at zero flap speed.
3000 ft. and Above
Accelerate to 250 Kt.  Maintain rate
of climb of 500 to 1000 rpm during
acceleration, then continue climb at
250 Kt.
    *  Procedure varies  with aircraft  model.

-------
6000
                      REVISED ATA PROCEDURES, ADOPTED DECEMBER 1976
          	ATA PROCEDURES ADOPTED AUGUST  1972
5000
              THRUST REDUCTION POINT
                       20         30         40        50         60        70
                            Distance from Start of Takeoff Roll in Thousands  of Feet
    FIGURE  1.
COMPARISON OF ATA  PROCEDURES  FOR  3-ENGINE  LBPR TURBOFAN
TRANSPORT AIRCRAFT - 727 SERIES  (3-T-TFL)  - PROFILE  1

-------
6000
              THRUST REDUCTION POINT
                       20        30        40        50        60
                            Distance from Start of Takeoff Roll in Thousands of Feet
        FIGURE  2
ATA TAKEOFF PROFILES FOR 4-ENGINE  LBPR TURBOFAN TRANSPORT
AIRCRAFT  -  DC-8,  707  SERIES  (4-T-TFL)  -  REVISED PROCEDURES
ADOPTED DECEMBER 1976

-------
6000
             THRUST REDUCTION POINT
                                30        40        50        60
                           Distance  from Start of Takeoff Roll in Thousands of Feet
      FIGURE  3.
ATA TAKEOFF PROFILES FOR 3-ENGINE  LBPR TURBOFAN TRANSPORT
AIRCRAFT  -  727 SERIES  (3-T-TFL) -  REVISED  PROCEDURES  ADOPTED
DECEMBER 1976

-------
6000
              THRUST REDUCTION POINT
      FIGURE 4.
    20        30        40        50         60
         Distance from Start of Takeoff Roll in Thousands of Feet


ATA TAKEOFF  PROFILES  FOR  2-ENGINE LBPR  TURBOFAN  TRANSPORT
AIRCRAFT  - DC-9, 737  SERIES (2-T-TFL) - REVISED  PROCEDURES
ADOPTED DECEMBER  1976

-------
6000
             THRUST REDUCTION POINT
             10


       FIGURE 5
   20         30        40        50         60
       Distance  from Start of Takeoff Roll in Thousands of Feet
70
80
90
ATA TAKEOFF PROFILES  FOR  4-ENGINE  HBPR TURBOFAN TRANSPORT
AIRCRAFT  -  747  SERIES (4-T-TFH) -  REVISED  PROCEDURES  ADOPTED
DECEMBER 1976

-------
6000
             THRUST REDUCTION POINT
                       20        30        40        50         60
                            Distance  from Start of Takeoff Roll in Thousands  of Feet
       FIGURE 6
ATA TAKEOFF PROFILES FOR 3-ENGINE  HBPR  TURBOFAN TRANSPORT
DC-10, L-1011  SERIES  (3-T-TFH) -  REVISED  PROCEDURES  ADOPTED
DECEMBER 1976

-------
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-------
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-------
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-------
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-------
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-------
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-------
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                                      3-ENGINE HBPR TURBOFAN TRANSPORT
                                      (DC10/L1011) RANGE  0 - 1,000 N. MILES
                                      TAKEOFF - ATA (Revised 1976)
                                      Flight Track Distance Range
                                      25,000 - 140,000 ft. from start of Takeoff Roll
70
         500    1000          2000               5000         10,000

                  Distance from Atrcraft Flight Track Centerline in feet
20,000

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     0      500    1000           2000               5000          10,000
                     Distance from Aircraft Flight Track Centerline in feet
20,000
                                    -  75  -

-------
                                                   3-T-TFH-TO(1 l)-R-
                            3-ENGINE HBPR TURBOFAN TRANSPORT
                            (DC10A1011) RANGE 1,000-2,000 N. MILES
                            TAKEOFF - ATA (Revised 1976)
                            Power Cutback at 25,000 ft.
                            Flight Track Distance Range
                            8,000 - 35,000 ft. from start of Takeoff Roll
500    1000           2000              5000         10,000

        Distance from Aircraft Flight Track Centerline in feet
20,000

-------
                                                    3-T-TFH-TO(ll)-R-3
                      I	3-ENGINE HBPRTURBOFAN TRANSPORT
                           (DC10/L1011) RANGE 1,000-2,000 N. MILES
                           TAKEOFF - ATA (Revised 1976)
                           Flight Track Distance Range
                           35,000 - 140,000 ft.  from start of Takeoff Roll
500   1000           2000              5000          10,000

        Distance from Aircraft Flight Track Center!ine  in feet
20,000
                       -  77 -

-------
                                                              3-T-TFH-TO(lII)-R-l
70
   0      500    1000           2000               5000          10,000
                  Distance from  Aircraft  Flight Track Center!ine in  feet
20,000
                                 - 78  -

-------
                              3-T-TFH-TO(lll)-R-2
0      500    1000           2000                5000          10,000
                Distance from Aircraft Flight Track Centerline  in feet
                                                20,000
-  79 -

-------
120
                                                             3-T-TFH-TO01D-R-3
                                        3-ENGINE HBPR TURBOFAN TRANSPORT
                                        (DC10/LKH1) RANGE  > 2,000 N. MILES
                                        TAKEOFF - ATA (Revised 1976)
                                        Flight Track Distance Range
                                        35,000 - 140,000 ft. from start of Takeoff Roll
          500    1000.           2000               5000          10,000
                   Distance from  Aircraft Flight Track Centerline in feet
20,000
                                                    «• 11.1 HmOMOnmniM OFFKE, 19n_720-^9/606$
                                  - 80  -

-------