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British Airways

By | December 2010
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BRITISH AIRWAYS ENVIRONMENTAL AFFAIRS

BRITISH AIRWAYS TECHNICAL DOCUMENTS RELATING TO AIRCRAFT OPERATIONS SUPPORTING THE PROJECT FOR THE SUSTAINABLE DEVELOPMENT OF HEATHROW

As part of the UK Government’s Project for Sustainable Development of Heathrow (PSDH), British Airways has carried out a number of pieces of work to help identify and characterise a number of aircraft operational practises, in order to inform the modelling process. British Airways has a policy to help improve the understanding of the environmental impacts of our operations, and is committed to open and honest reporting of these environmental characteristics. In connection with this, we are happy to make publicly available the technical reports detailing a number of studies and analyses carried out as input to the PSDH process. This document contains the following reports: 1. “An estimation of the total NOx emissions resulting from aircraft Engine Ground Running at Heathrow airport”, ENV/KMM/1127/14.18, Jenna C Buttress and Kevin M Morris, British Airways, October 2005. This is a brief report of the analysis carried out in 2002 to try to identify the NOx emissions from Engine Ground Running at Heathrow airport, using engine ground run logs and estimated power settings. This is the most precise analysis undertaken of Engine Ground Running emissions at Heathrow and therefore has also been used as the method for estimating these emissions for PSDH. 2. “Take-off at less than full power”, WG 3 AEMTG WP10/10, Kevin M Morris, “British Airways/IATA, June 2002. Aircraft rarely take-off at full power, though the problem is in identifying the actual power settings used. This report, originally presented at the International Civil Aviation Organisation’s (ICAO) Committee on Aviation Environmental Protection (CAEP) Working Group 3, notes the different philosophies behind the calculation of take-off thrust during normal operations, and suggests a method by which they can be estimated using actual...

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