Altair Glide Computer and Navigation System User Manual Page 120
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XCSoar User Manual
Track
Track
Magnetic track reported by the GPS. (Touchscreen/PC only) If
this infobox is active in simulation mode, pressing the up and
down arrows adjusts the track.
Airspeed IAS
V IAS
Indicated Airspeed reported by a supported external intelligent
vario.
G load
G
Magnitude of G loading reported by a supported external intel-
ligent vario. This value is negative for pitch-down manoeuvres.
Bearing Difference
Brng D
The difference between the glider’s track bearing, to the bear-
ing of the next waypoint, or for AAT tasks, to the bearing to
the target within the AAT sector. GPS navigation is based on
the track bearing across the ground, and this track bearing may
differ from the glider’s heading when there is wind present.
Chevrons point to the direction the glider needs to alter course
to correct the bearing difference, that is, so that the glider’s
course made good is pointing directly at the next waypoint.
This bearing takes into account the curvature of the Earth.
Airspeed TAS
V TAS
True Airspeed reported by a supported external intelligent
vario.
10.3 Glide ratio
L/D instantaneous
L/D Inst
Instantaneous glide ratio, given by the ground speed divided
by the vertical speed (GPS speed) over the last 20 seconds.
Negative values indicate climbing cruise. If the vertical speed
is close to zero, the displayed value is ’—’.
If this infobox is active, pressing the enter cursor button brings
up the bugs and ballast dialog.
L/D cruise
L/D Cru
The distance from the top of the last thermal, divided by the
altitude lost since the top of the last thermal. Negative values
indicate climbing cruise (height gain since leaving the last ther-
mal). If the vertical speed is close to zero, the displayed value
is ’—’.
Final L/D
Fin L/D
The required glide ratio to finish the task, given by the dis-
tance to go divided by the height required to arrive at the safety
arrival altitude. Negative values indicate a climb is necessary
to finish. If the height required is close to zero, the displayed
value is ’—’.
120
- User Manual 1
- Contents 2
- Revision history 7
- Warnings and precautions 7
- Legal notices 7
- 1 Introduction 9
- 1.2 Notes 10
- 1.3 System requirements 10
- 1.4 Downloading XCSoar 11
- 1.5 Installation 12
- 1.6 Running XCSoar 15
- 1.7 Through-life support 17
- 1.8 Training 18
- 1.9 Using XCSoar safely 19
- 2 User Interface 20
- 2.1 Button labels and menus 22
- 2.2 InfoBoxes 28
- 2.3 Status messages 30
- 2.4 Dialog windows 30
- 2.5 Sounds 33
- 2.6 Screen 34
- 2.7 Help system 34
- 3 Navigation 35
- 3.3 Zoom and map scale 36
- 3.4 Panning the map 37
- 3.5 Waypoints 38
- 3.6 Active task 39
- 3.7 Terrain and Topology 39
- 3.8 Trail 40
- 3.9 Markers 42
- 3.10 Glide range 42
- 3.11 Aircraft status dialog 43
- 4 Cross Country Tasks 45
- 4.2 Waypoint details dialog 46
- 4.3 Waypoint selector dialog 48
- 4.4 Task editor dialog 50
- 4.6 Task rules 55
- 4.7 Alternate starts 57
- 4.8 Task calculator dialog 59
- 4.9 Task status dialog 60
- 4.10 Assigned Area Tasks 60
- 4.11 OnLine Contest 62
- 4.12 Abort/resume task 63
- 4.13 Logger 65
- 4.14 Logger replay dialog 66
- 4.15 Analysis dialog 67
- 4.16 Sunlight and time 69
- 5 Glide Computer 71
- 5.2 MacCready setting 72
- 5.3 Glide polar 73
- 5.4 Basic settings dialog 73
- 5.5 Speed command display 75
- 5.6 Speed to fly 75
- 5.7 Safety heights 76
- 5.8 Final glide calculator 78
- 5.10 Task speed estimation 80
- 5.11 Optimal cruise track 81
- 5.12 Auto MacCready 82
- 5.13 Analysis dialog 84
- 6 Atmosphere and Instruments 86
- 6.2 Air data inputs 87
- 6.3 Wind display 87
- 6.4 Wind estimation 88
- 6.5 Wind settings dialog 89
- 6.6 Thermal profile 90
- 6.7 Thermal locator 91
- 6.8 Convection forecast 92
- 6.9 Analysis dialog 93
- 7.1 Airspace display 95
- 7.2 Incursion events 96
- 7.3 Airspace warning levels 97
- 7.4 Airspace warning dialog 98
- 7.6 Airspace queries 100
- 7.7 Airspace filter dialog 101
- 7.8 Analysis dialog 101
- 7.9 FLARM traffic display 102
- XCSoar User Manual 103
- 7.10 Team flying 104
- 8 Avionics and Airframe 106
- 8.3 Switch inputs 107
- 8.4 Switch dialog 108
- 8.6 Mobile telephones 109
- 8.7 Other devices 110
- 8.8 System status dialog 110
- 9 Quickstart 111
- 9.2 FAI Task 112
- 9.3 FAI Task, Manual Start 114
- 9.4 AAT Task, Manual Arm 114
- 10 InfoBox Reference 119
- 10.3 Glide ratio 120
- 10.4 Variometer 121
- 10.5 Atmosphere 122
- 10.6 MacCready 122
- 10.7 Navigation 123
- 10.8 Waypoint 124
- 10.9 Team code 124
- 11 Configuration 126
- 11.3 Airspace Display 128
- 11.5 Map Display 131
- 11.6 Glide computer 133
- 11.7 Safety factors 134
- 11.8 Polar 136
- 11.9 Devices 137
- 11.10 Units 138
- 11.11 Interface files 139
- 11.12 Appearance 141
- 11.13 Vario gauge 143
- 11.14 Task 144
- 11.15 Task Rules 146
- 11.16 InfoBox 147
- 11.17 Logger 148
- 11.18 Waypoint edit 149
- 12 Data Files 151
- 12.2 Terrain 152
- 12.3 Topology 152
- 12.4 Waypoints 152
- 12.5 Airspace 153
- 12.6 Airfield details 153
- 12.7 Glide polar 154
- 12.8 Profiles 155
- 12.9 Checklist 156
- 12.10 Tasks 156
- 12.11 Flight logs 157
- 12.12 Input events 157
- 12.13 Language 158
- 12.14 Status 158
- 12.15 FLARM Identification file 159
- 12.16 Dialog files 159
- 13 History and Development 160
- 13.3 Open source philosophy 161
- 13.4 Development process 162
- 13.5 User base 162
- 13.6 Credits 163
- No warranty 169
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