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P. 797
Navigation
9.7.1.2 Drift ...................................................................................................847
9.7.1.3 Wind correction angle (WCA) ...........................................................847
9.7.2 Speed designations GS, TAS, IAS and CAS ............................................. 848
9.7.2.1 Ground Speed (GS) ...........................................................................848
9.7.2.2 True Air Speed (TAS) .........................................................................848
9.7.2.3 Indicated Air Speed (IAS) ..................................................................848
9.7.2.4 Calibrated Air Speed (CAS) ................................................................848
9.7.3 Heading and wind ................................................................................. 849
9.7.3.1 Track and True Track (TT) .................................................................849
9.7.3.2 Drift ...................................................................................................849
9.7.3.3 Wind correction angle (WCA) ...........................................................849
9.7.3.4 Wind component (WC) .....................................................................850
9.7.3.5 Wind direction (W) and velocity (V) .................................................850
9.7.4 North references, headings and wind angles ....................................... 851
9.7.5 Practical use .......................................................................................... 852
9.7.5.1 Specifying the wind ...........................................................................853
9.7.5.2 TAS and GS ........................................................................................853
9.7.5.3 TH and WCA ......................................................................................853
9.7.5.4 MH, CH, deviation and variation .......................................................853
9.8 The navigation computer CRP1W and CRP ............................................... 855
9.8.1 The scale side ........................................................................................ 855
9.8.1.1 Converting speed, time, distance .....................................................856
9.8.1.2 Conversion of measurements ...........................................................856
9.8.1.3 Calculating fuel consumption ...........................................................856
9.8.1.4 Determining true altitude, density, pressure ...................................857
9.8.2 The wind side ........................................................................................ 857
9.8.2.1 The slider ..........................................................................................858
9.8.2.2 The wind arm ....................................................................................858
9.8.2.3 Grommet /center dot .......................................................................858
9.8.3 Using the computer – a brief overview ................................................ 859
9.8.3.1 The wind side ....................................................................................859
9.8.3.2 The inner part of the scale side ........................................................861
Flyveteori PPL(A)(UL)/LAPL Henning Andersen, Midtjysk Flyveskole© 2025 797
