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. 2009 Jun 12;44(37):4678–4734. doi: 10.1016/j.atmosenv.2009.06.005

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Copyright © 2009 Elsevier Ltd. All rights reserved.

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Fig. 29 — Charactericstic NO_x of in-service engines according to CAEP NO_x regulatory parameter, Dp/foo (g NO_x/kN thrust at static sea-level test conditions) vs overall pressure ratio of engine. The CAEP medium term (MT) and long term (LT) technology goals are shown as lines.