Altair Glide Computer and Navigation System Uživatelský manuál Strana 52
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Hodnocené. / 5. Na základě hodnocení zákazníků
5 GLIDE COMPUTER
5 Glide Computer
This section focuses on how XCSoar’s glide computer works and is recommended reading so you
understand the specific details of calculations being performed and how to use the software prop-
erly. It assumes a basic knowledge of cross-country soaring, but is suitable reading for competition
pilots as well as pilots engaging in casual cross-country touring.
5.1 Flight modes
XCSoar automatically detects the difference between thermal (circling) flight and cruising flight.
After about 30 seconds of circling flight the software will switch from cruise to climb mode. After
about 30 seconds of straight line flight the software will switch from climb to cruise mode.
The cruise modes are further divided into final glide and normal cruise. Final glide is active when
the last waypoint in the task is active, or when the task is in abort mode.
• Cruise The glider is not circling and active waypoint is not the finish point.
• Circling The glider is circling (though it may not be climbing).
• Final glide The glider is not circling and the active waypoint is the final one in the task.
The specific computations performed by XCSoar are of course dependent on this flight mode. The
display changes in each mode, principally, the InfoBoxes may be set up differently for each mode
(see paragraph InfoBoxes); secondly there is a facility to automatically change zoom between
circling and other flight modes (this is called ‘circling zoom’).
Switching between the different flight modes is automatic. Circling is enabled when the glider
turns (typically three quarters of a turn). It is possible to have circling mode switched based on an
external input (e.g. from a pilot-operated switch).
A small symbol is drawn on the lower right corner of the map area to indicate which flight mode the
computer is in.
Final glide mode can be forced even if the active waypoint is not the final waypoint. There are two
ways to do it:
• NAV Final Force
• F6 (A status message confirms that final glide mode is enabled)
This toggles between forced final glide, and normal (automatic) operation.
Final glide mode can also be forced automatically if at any stage in the flight the aircraft is above
the final glide slope. This is a configuration option called ‘Auto Force Final Glide’, disabled by
default. This option is useful when flying short tasks in which the aircraft may well be above final
glide turning the penultimate waypoint.
InfoBoxes
In addition to the three standard display modes, an auxiliary set of InfoBoxes may be displayed in
any flight mode. This is useful if the pilot has information he wants to be able to view no matter
what mode the computer is in.
There are two ways to choose the display mode:
45 XCSoar Manual (Altair version) • XCSoar-A-EN
- Manual (Altair version) 1
- Revision history 3
- Warnings and precautions 3
- Legal notices 3
- Contents 4
- • XCSoar-A-EN iv 5
- • XCSoar-A-EN vi 7
- 1 Introduction 8
- Start-up and user profiles 9
- Splash screen 9
- 1.4 Through-life support 10
- 1.5 Using XCSoar safely 11
- 2 User Interface 12
- 2.1 Button labels and menus 13
- 2.1.1 NAV menu 14
- 2.1.2 DISP menu 15
- 2.1.3 Pan mode 15
- 2.1.4 CONF menu 16
- 2.1.5 INFO Menu 16
- Default buttons 17
- Dynamic menu labels 17
- 2.2 InfoBoxes 18
- 2.3 Dialog windows 18
- • XCSoar-A-EN 12 19
- 2.3.7 Screen Brightness 20
- 2.3.8 Setup MacCready 20
- 2.3.9 Basic Settings 20
- 2.3.10 Wind Settings 20
- • XCSoar-A-EN 14 21
- 2.4 Status messages 22
- 2.5 Status dialog 22
- Aircraft 23
- • XCSoar-A-EN 18 25
- 2.6 Text entry 26
- 2.7 Sounds 27
- 2.8 Screen 27
- 2.9 Help system 27
- 3 Display Elements 28
- 3.3 Glider symbol 29
- 3.4 Trail 30
- 3.5 Glide range 31
- 3.6 Map elements 31
- Waypoints 32
- Terrain and topology 32
- 3.7 Markers 33
- 3.8 Active task elements 33
- 3.9 Thermal profile 34
- 3.10 Other 34
- GPS not connected 35
- GPS waiting for fix 35
- Final glide 35
- 4 Cross Country Tasks 36
- • XCSoar-A-EN 30 37
- 4.2 Task Editor 38
- • Save only Only save task 39
- • Task type Standard or AAT 40
- • Distance Task distance 40
- • XCSoar-A-EN 34 41
- Page: Waypoints 42
- • XCSoar-A-EN 36 43
- Page: Rules 44
- 4.3 Task calculator 45
- 4.4 Waypoint Browser 46
- 4.5 Waypoint Info 47
- −100%, the target is located 48
- 4.7 OnLine Contest 49
- 4.8 Logger 50
- Setup Logger 51
- 5 Glide Computer 52
- 5.2 MacCready settings 53
- 5.3 Glide polar 54
- 5.4 Basic settings 55
- 5.5 Speed to fly 56
- 5.6 Safety heights 57
- = 0), adjusted for 58
- 5.7 Final glide calculator 59
- +/− 500 meters 60
- 5.9 Task speed estimation 61
- 5.10 Optimal cruise track 62
- Analysis Show 63
- 5.12 Flight notifications 64
- 5.13 Sunlight and time 64
- 6 Atmosphere and Instruments 65
- 6.2 Air data inputs 66
- 6.3 Wind display 66
- 6.4 Wind estimation 66
- 6.5 Wind settings dialog 67
- 6.6 Thermal locator 68
- 6.7 Convection forecast 69
- • XCSoar-A-EN 64 71
- 7.1 Airspace display 72
- 7.2 Incursion events 73
- 7.3 Airspace warning levels 73
- 7.4 Airspace warning dialog 74
- 7.6 Airspace Info dialog 75
- 7.7 Airspace Browser dialog 76
- • XCSoar-A-EN 70 77
- 7.8 Analysis dialog: Airspace 78
- 7.9 FLARM traffic display 79
- • Green for level 0 80
- • Yellow for level 1 80
- • Red for level 2 and 3 80
- 7.10 Team flying 81
- 8 Avionics and Airframe 82
- 8.3 Switch Status 83
- 8.5 Supported variometers 83
- 8.6 Other avionics devices 84
- 8.7 Slave mode 84
- 9 Quickstart 85
- 9.2 FAI Task 86
- 9.3 FAI Task, Manual Start 87
- 9.4 AAT Task, Manual Arm 87
- In-flight 88
- After landing 89
- Prior to takeoff 90
- 10 InfoBox Reference 91
- 10.3 Glide ratio 92
- 10.4 Variometer 93
- 10.5 Atmosphere 94
- 10.6 MacCready 94
- 10.7 Navigation 95
- 10.8 Waypoint 97
- 10.9 Team code 98
- 11 Configuration 99
- Fail-safe 100
- 11.1 Site 101
- 11.2 Airspace 102
- • XCSoar-A-EN 96 103
- 11.3 Map Display 104
- • XCSoar-A-EN 98 105
- 11.4 Terrain display 106
- Colour schemes 107
- 11.5 Glide computer 108
- • XCSoar-A-EN 102 109
- 11.6 Safety factors 110
- 11.7 Polar 111
- 11.8 Devices 112
- 11.9 Units 113
- 11.10 Interface 114
- 11.11 Appearance 115
- • XCSoar-A-EN 116
- 11.12 InfoBox 117
- 12 Data Files 118
- 12.5 Airspace 119
- 12.6 Map 119
- 12.7 Airfield details 119
- 12.8 Glide polar 120
- *Speed2, Sink2, Speed3, Sink3 121
- • XCSoar-A-EN 116 123
- 12.9 Profiles 125
- 12.10 Checklist 125
- 12.11 Tasks 125
- 12.12 Flight logs 126
- 12.13 Input events 126
- 12.14 Language 126
- 12.15 Status 127
- 12.16 FLARM Identification file 127
- 12.17 Dialog files 127
- 13 About XCSoar 128
- 13.3 Open source philosophy 129
- 13.4 Development process 129
- 13.5 User base 130
- 13.6 Credits 130
- • XCSoar-A-EN 124 131
- A GNU General Public License 132
- • XCSoar-A-EN 126 133
- • XCSoar-A-EN 128 135
- No warranty 136
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