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Noise lines for noise certification of future supersonic aeroplanes, propellerdriven
STOL aeroplanes and installed APU and associated aircraft
systems when operating on the ground.
4 Fifth Meeting of the Introduction of a new parameter, viz. number of engines in the noise
(3rd Edition) Committee on Aircraft certification standards for subsonic jet aeroplanes, improvements in
Noise detailed test procedures to ensure that the same level of technology is
applied to all types of aircraft, and editorial changes to simplify the
language and eliminate inconsistencies.
5 Sixth Meeting of the 1. Annex retitled Environmental Protection and to be issued in two
(Annex 16, Committee on Aircraft volumes as follows: Volume I - Aircrafr Noise (incorporating
Volume I - Noise provisions in the third edition of Annex 16 as amended by
1st Edition) Amendment 5) and Volume I1 - Aircraft Engine Emissions.
2. Introduction in Volume I of noise certification Standards for
helicopters and for future production of existing SST aeroplanes,
updating of guidelines for noise certification of installed APU and
associated aircraft systems and editorial amendments including
changes to units of measurement to bring the Annex in line with
Annex 5 provisions.
6 Second Meeting of the Introduction of Volume I1 containing Standards relating to the control
(Annex 16, Committee on Aircraft of fuel venting, smoke and gaseous emissions from newly manufac-
Volume I1 - Engine Emissions tured turbo-jet and turbofan engines intended for subsonic and
J st Edition supersonic propulsion.
1 First Meeting of the Changes in test fuel specifications, Appendix 4.
Committee on Aviation
Environmental
Protection
2 Second Meeting of the a) increased stringency of NO, emissions limits;
(2nd Edition) Committee on Aviation
Environmental b) improvements in the smoke and gaseous emissions certification
htection procedure.
3 Third Meeting of the Amendment of the criteria on calibration and test gases in Appendices
Committee on Aviation 3 and 5.
Environmental
Protection
Adoptedapproved
Effective
Applicable
2 April 1971
2 August 1971
6 January 1972
6 December 1972
6 April 1973
16 August 1973
3 April 1974
3 August 1974
27 February 1975
21 June 1976
21 October 1976
6 October 1977
6 March 1978
6 July 1978
10 August 1978
11 May 1981
11 September 1981
26 November 1981
30 June 1981
30 October 1981
18 February 1982
4 March 1988
31 July 1988
17 November 1988
24 March 1993
26 July 1993
11 November 1993
20 March 1997
20 March 1997
-
(vii) 4/11/99
No. 4
Annex 16 - Environmental Protection Volume II
Adoptedapproved
Effective
Amendment Source(s) Subject(s) Applicable
4 Fourth Meeting of the Increased stringency of NO, emissions limits. 26 February 1999
Committee on Aviation 19 July 1999
Environmental 4 November 1999
botection
4/11/99
No. 4
(viii)
INTERNATIONAL STANDARDS
AND Rl3COMMENDED PRACTICES
PART I. DEFINITIONS AND SYMBOLS
CHAPTER 1. DEFINITIONS
Where the following expressions are used in Volume I1 of Rated output. For engine emissions purposes, the
this Annex, they have the meanings ascribed to them below: maximum powerlthrust available for take-off under normal
operating conditions at ISA sea level static conditions without
Afterburning. A mode of engine operation wherein a the use of water injection as approved by the certificating
combustion system fed (in whole or part) by vitiated air is authority. Thrust is expressed in kilonewtons.
used.
Reference pressure ratio. The ratio of the mean total
Approach phase. The operating phase defined by the time pressure at the last compressor discharge plane of the
during which the engine is operated in the approach operating compressor to the mean total pressure at the compressor entry
mode. plane when the engine is developing take-off thrust rating in
1SA sea level static conditions.
Climb phase. The operating phase defined by the time
during which the engine is operated in the climb operating Note.- Methods of measuring reference pressure ratio
mode. are given in Appendix 1.
Date of manufacture. The date of issue of the document Smoke. Tile carbonaceous materials in exhaust emissions
attesting that the individual aircraft or engine as appropriate which obscure the transmission of light.
conforms to the requirements of the type or the date of an
analogous document.
Derivative version. An aircraft gas turbine engine of the
same generic family as an originally type-certificated engine
　
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