The RETA-CDA project in AIRE 2009 demonstrated that CDA flights done by commercial flights deliver positive average savings in fuel burn and CO2 reductions. The purpose of RETA-CDA 2 was to demonstrate the repeatability and predictability of CDOs by:

• analysing their performance on commercial flights from a wider scope i.e. from ToD. 
• assessing the time deviation between the flights’ estimated and real profiles and the impact of the major influencing parameters;
• evaluating the link between lost opportunities for CDO with the time deviation (if it exists).

Number of trials: 210

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