.. .. @@ -1017,6 +1017,7 @@ 1017 1017 - **Option A** (1356) would correspond to a GS of about 62 kt; option D (1320) would correspond to a GS of about 113 kt. 1018 1018 - Carefully subtracting the headwind from TAS before dividing gives the correct result. 1019 1019 1020 +> Source: [Segelflugverband der Schweiz - SFCL Theorie Navigation Version Schweiz Uebungen](https://www.segelflug.ch/wp-content/uploads/2024/01/SFCL_Theorie_Navigation_Version_Schweiz_Uebungen.pdf)1020 1021 1021 1022 #### Key Terms 1022 1023