Division 2.7.20 Event noise level L of a general-aviation aircraft movement

The method described in Section 2.7.19 is applicable to propeller-engined general-aviation aircraft when they are treated as propeller aircraft with regard to engine installation effects.

The ANP database includes entries for several general aviation aircraft. Whilst these are often the most common general-aviation aircraft operating, there may be occasions when it is appropriate to use additional data.

Where the specific general aviation aircraft are either not known or not in the ANP database, it is recommended to use the more generic aircraft data, GASEPF and GASEPV respectively. These data sets represent a small single-engined general aviation aircraft with fixed-pitch and variable-pitch propellers respectively. Tables of entries are presented in Annex I (Tables I-11 I-17)