Full Text Searchable PDF User Manual
CNd Manual
CNd the Display for the CNv Variometer with IGC Logger
CNv NavDisplay - Climb / Cruise / Map Screens
Climb Screen
Cruise Screen
Map Screen
Vario Average and Current
Climb Scale - Range
Adjustable
MC Value - Adjustable
20 Second Climb Averager
and timer
Achieved Climb Averager
and timer
Climb Averager Calc
Method (TE)
Glide Slope Scale and
Metrics
Wind or Navigation
Display - Selectable
Push Pull Indicator
MC Value - Adjustable
Speed To Fly Value / Target
Cruise Averager and timer
Cruise Averager Calc
Method (N, RN)
Glide Slope Scale and
Metrics
Wind or Navigation Display
- Selectable
Moving Map still in
development - supporting:
Navigation Info - Graphics
and Metrics
Task Editor
Turn point geometry
limited to 0,5 km
circle with an FAI
sector collocated
No cylinders (Start,
Finish, or Area)
Manual selection of
the next TP in a task
No terrain, culture or
airspace
Left / Right Navigation through Screen Sets
A long press scrolls to the first or last
screen/option in the set.
Up / Down Navigation through Menus and Lists
Changes selected mode values up / down
A long press quickly scrolls to the top or bottom
screen / option in the set.
The 'GO' button supports multiple funtions:
A short press toggles the wind / navigation
display in the Cruise and Climb Screens
CNv NavDisplay - Controls
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A long press enables mode selection - Scale, MC
or Volume - indicated by white text over a black
background. (see next section)
A 'GO' press on other screens selects files or
displayed options.
CNv NavDisplay - Screen Modes - Scale, MC, Vol
-
The mode can be switched using a long press on the 'GO' Button
-
The selected mode will display on the top of the screen - over the current mode value.
-
The value is changed by pressing the up / down button
-
The changed values are stored in the ADC and display in all devices connected to the ADC
Scale Mode
MC Mode
Vol Mode
Adjusts Cruise / Climb Scale on
Adjusts vario MC value using the
Adjusts vario volume using the up
the left side of the display using
up / down buttons
/ down buttons
the up / down buttons
CNv NavDisplay - Screen Navigation
FLGHT SCREENS
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POINTER
RESP
NAVIGATION SCREEN MAP (In Development)
GLIDER SETTINGS SCREENS
ALT
OAT
MARGIN
DRY
POLAR
GLIDER
SELECT
SETTINGS
HEIGHT
WEIGHT
VARIO SETTINGS SCREENS
AUDIO
CRUISE
TE
TE
PROBE
ELEC TE
UTC
VOLUME
SOURCE SOURCE
TE
COMP
RESP
RESP
COMP
INFO SCREENS
GPS
LAT/LON SPEEDS
P-ALT
SENSOR
SPLASH
REVIEW
SYSTEM
STATUS
SELECT
READINGS SCREEN SETTINGS INFO
TOOLS SCREENS
LOGBOOK
PROFILE
LICENSE
OAT
INFO
(Manual)
SCREENS
FLIGHT
SCREENS
G/S
VARIO
WARNING SETTINGS
INFO
SCREENS
Climb Screen
20 Second Climb Average - The top numeric value displays the average climb
rate for the last 1,2 .. 20 seconds. Updates every second. Non Adjustable.
The average climb rate for the last N seconds is also indicated graphically on
the variometer scale on the left side - the triangle indicator is the N second
climb rate.
Total Climb Average - The lower numeric value shows the average climb rate
for the total climb duration. Updates every second - max duration is one hour.
CLIMB
CRUISE
MAP
MC
WINDS
PROFILE
HOME
BALLAST
BUGS
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The total average climb rate is also indicated graphically on the variometer
scale on the left side - the solid bar is the total climb rate average.
Both values are reset to zero when the manual cruise/climb switch is cycled.
When automatic C/C switching is in use the screen typically switches to Climb
at about 45 degrees or one eighth of a turn. The two averagers and the timers
however are reset after the first few degrees of any turn so that if/when the
vario goes into climb mode the averages (and the timers) display values from
the first point at which turning was detected. This allows the pilot to make a
faster and more accurate assessment of the lift quality
.
Winds Screen
The solid black arrow shows the direction of the wind relative to the ground
track.
For small crab angles, the ground track and glider heading are roughly equal.
MacCready Screen
The MC Value is adjusted using the up / down buttons.
The STF is calculated using the MC setting, ship polar, dry weight, ballast, and
bug % entered by the pilot. This is the STF in neutral air.
Map Screen
Content Forthcoming.
Cruise Screen
The Netto value is the calculated vertical speed of the airmass based on the
last 1
– n seconds of cruise flight where n = cruise time constant . The timer
shows the actual duration from the start of the current glide.
The STF is calculated based on selected flight parameters (polar, ballast,
bugs, MC, vertical airmass motion).
Wind direction and speed are displayed graphically and numerically.
Navigation information information can be displayed by pressing 'GO' button.
Each chevron corresponds to a five knot difference between the indicated
airspeed and the speed-to-fly.
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Tail wind is displayed on the left side of the screen - a tail wind of two knots is
depicted.
The wind strength is 8 kts and is blowing from 352 degrees.
Ribbon Menu - Navigation
Flight Screens
This is the entry and last screen in the Flight Screens set.
Other setting screen sets are selected using the up / down buttons.
Bugs / Clean Screen
Estimated bug coverage is adjusted using the lower encoder.
100% = no bugs.
The impact on L/D is displayed for reference
Ballast Screen
Ballast may be litres or US gallons.
For US gallons the AUW of the ballasted glider is computed and displayed in
lbs.
For litres the AUW of the ballasted glider is computed and displayed in kg.
AUW = Dry Weight + Ballast
NAVIGATE HOME Screen
The XC version displays navigation information for the currently selected
waypoint, or the next waypoint in a task declared in the Map Screen.
For Club versions, this screen will provide Navigation to the Home airport. The
coordinates for HOME and the elevation of the home field must be entered
using the configuration utility.
In this example, the glider has to turn right ~ 90 degrees to get home. but is
427 below the altitude required to arrive with zero margin.
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The new Navigation functions are accessed through the ribbon menu item -
Navigation Screen.
The screen examples on the left show all XC ribbon menu functions:
Flight Screens
Navigation Screens
Glider Settings
Vario Settings
Info
Tools
Note: Many functions will display a header / splash screen for a second to
assist in ribbon navigation.
Navigation - Home Screen
The CNv will default to Profile Home or last active navigation waypoint
selected as the startup Navigation Home screen.
NAME
BRG
TRK
Distance
Altitude Delta
Navigation - Active Task
The Active Task is displayed.
The Up / Down buttons scroll through each turnpoint in the task. (These are
Navigation - Recent
The GOTO Recent function will display a list of the last turnpoints that were
selected as navigation targets.
The most recently selected will display at the top of the list.
The Up / Down buttons will scroll up/down the list.
The Distance and Bearing to each highlighted turnpoint will display.
The BR encoder can be pushed to select the highlighted row as the active
navigation target.
When the list is full, the oldest Recent waypoint will scroll off the bottom of
the display - it is still viewable by scrolling down.
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not editable in this screen.)
The Distance and Bearing to each highlighted turnpoint will displayed.
The Go Button can be pressed to select the highlighted row as the active
navigation target.
Navigation - All Waypoints byType/Name
The GOTO All Waypoints by Type/Name will display a list of loaded waypoints
in type/Name Order.
The Up / Down buttons will scroll up/down the list.
The Distance and Bearing to each highlighted turnpoint will displayed.
The GO Button can be pressed to select the highlighted row as the active
navigation target.
Navigation - Landing Point by Distance
The closest landing points display at the top of list . The remainder display in
order of increasing distance.
The Up / Down buttons rotation will scroll up/down the list.
The Distance and Bearing to each highlighted turnpoint will displayed.
The GO button can be pressed to select the highlighted row as the active
navigation target.
Navigation - Turning Point by Number
The GOTO Turning Point by Number function will display a list of loaded
turnpoints in Number Order.
The Up / Down buttons will scroll up/down the list.
The Distance and Bearing to each highlighted turnpoint will displayed.
The Go Button can be pressed to select the highlighted row as the active
navigation target.
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Navigation - Task Editor
The TASK EDITOR is entered by scrolling all the way to the right with the Left
/Right buttons.
The last-entered active task will be displayed ... or a 'No Task' message will be
displayed.
The The Up / Down buttons are used at his point to perform ALL task edit
functions.
New Task Setup
1/ Press the BR encoder to display the list of turnpoints. The bottom
highlighted row of the list will be '<<end>>'
2/ Press the BR encoder again to start new task creation.
3/ The initial task screen will display '**NoTask**' to indicate no turnpoints
have been selected for this new task setup.
4/ Press the BR encoder to display the turnpoint list.
5/ Scroll down the list with the BR encoder to select a Start point. The first
turnpoint selected is always assumed to be the start point and has the prefix
'S:' in the task display.
6/ The task will display the Start at the top of the list and '<<end>>' will be
highlighted on the last line.
7/ Press BR encoder to display turnpoints. BR encoder will scroll through the
list. Press the BR encoder to add the highlighted turnpoint to the task.
8/ The task will be display with the Start ... and the last selected turnpoint as
Finish. The '<<end>>' will be highlighted.
10/ Continue add turnpoints to the bottom of the task using the BR encoder to
scroll and select. The last selected turnpoint is always considered the Finish.
11/ When task construction is completed, depress and hold the BR encoder to
display the save options.
'Cancel' discards the task. The CNv will revert to the last entered task.
'Declare - No' saves the task ... but does not initialize the declaration.
'Declare - Yes' saves the task ... and does initialize the declaration.
12/ When 'Declare - Yes' or 'Declare - No' is selected, the Start turnpoint
becomes the active waypoint.
Active Task Edit
1/ Existing tasks can be edited by changing an existing turnpoint ... or by
deleting all turnpoints at a certain point in the task turnpoint list.
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2/ Highlight an existing task turnpoint and press the BR encoder to select a
replacement from the turnpoint list.
3/ Highlight an existing turnpoint and press the BR encoder to select the
turnpoint list. Selecting '<<end>>' at the top of the list will erase that turnpoint
and all following. New turnpoints may be selected for the deleted turnpoints
to specify the revised task.
Polar
A representative set of polars is available.
Dry Weight
'Dry Weight' of the ship can be adjusted using the up / down buttons.
Dry weight is the manufacturer's weight of the empty ship + instruments +
pilot + chute + all other baggage. i.e. the actual weight of the ship with you in
it - sitting on the takeoff grid - not including ballast.
Margin Height
Altitude margin added to get HOME altitude calculations.
OAT Screen
The OAT value can be adjusted using theup / down buttons.
ALT/ GPS Screen
The altimeter setting can be adjusted using the up / down buttons.
Glider Settings
This is the entry and last screen in the Glider Setting Screens set.
Other setting screen sets are selected using the up / down buttons.
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Polar (glider) is selectable using the up / down buttons.
Any new polar may be defined using the configuration utility.
TE Source
TE Probe or Electronic TE is selected using this screen set.
The up / down buttons toggle between two screen options:
1/ Use TE probe
OR
2/ No TE probe
The option selected here determines which TE compensation adjustment
screen (following) will be displayed.
Cruise Respone
This time constant controls the behavior of the STF chevrons and the netto (or
relative netto) averages on the display.
Audio Response
Audio Time Constant is adjusted using the up / down buttons. 2.5 seconds is
the default.
Pointer and Audio time constants are independently adjustable.
Pointer Response
Pointer Time Constant is adjusted using the up / down buttons. 2.5 seconds is
the default.
Pointer and Audio time constants are independently adjustable.
Vario Settings
This is the entry and last screen in the Vario Settings Screen set.
Other setting screen sets are selected using the up / down buttons.
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TE Probe Compensation
This screen appears next with a CW turn of the upper encoder if the 'Use TE
probe' option is selected above.
TE Electronic Compensation
This screen appears next with a CW turn of the upper encoder if the 'No TE
probe' option is selected above.
Gear / Spoiler Warning Activation
Screen allows activation / deactivation of Gear and Spoilers Warnings.
Switch connections from the gear and spoiler actuators must be made to the
ADC.
The warning will flash over the top of all screens until gear or spoiler
retraction is completed.
Volume
Audio Level (volume) is adjusted using the up / down buttons.
The up / down buttons always function as a volume control on the
Cruise/Climb Screen.
UTC
The up / down buttons are used to enter the UTC offset required for a correct
local time display.
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Pressure Altitude and Fight Recorder Altitude
PALT is pressure altitude measured at the glider static source referenced to
the 1013.2 msl datum.
SPEEDS - IAS/TAS/GPS Screen
Display Only.
LAT / LON / ALT Screen
Display Only.
GPS Status
Display Only.
Info Screens
This is the entry and last screen for the Information Screens set.
Other setting screen sets are selected using the up / down buttons.
Profile
Screen allows selection of a profile from multiple profile options created on
the PC utility and uploaded to the CNv.
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SFR altitude is pressure altitude measured at the cockpit pressure referenced
to the 1013.2 msl datum.
Tools
This is the entry and last screen in the Tools Screen set.
Other setting screen sets are selected using the up / down buttons.
System Info
Display Only.
Review Settings
Display Only.
CNv CLUB Splash Screen
Display Only.
Sensor Readings
Display Only.
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Logbook
A list of the flights displaying date and duration will be displayed. Scroll down
the list to see take-off time.
Tools - Download Flights (Loading Waypoints)
Insert a USB drive into the ADC USB port.
Tools - Ribbon Menu
Tools is the last function on the ribbon menu.
OAT Manual Adjust
If no temperature probe is fitted the pilot can enter a temperature (or forecast
temperature) for the current altitude and the instrument will use that to
approximate the temperature with varying altitude. An estimate within a few
degrees will provide good IAS/TAS correction and wind calculations.
Note: at present we use the standard atmosphere lapse rate. We may switch
to using an adiabatic lapse rate.
OAT probes are available
here
.
License
This screen allows the pilot to select and install a license from a usb memory
stick. Installation is only required once - the CNv will retain the license
information.
Tools - Profile
This screen allows profile selection from multiple available to provide different
CNv defaults / setups for different pilots or configurations.
The profiles are loaded on a USB drive and are typically selected prior to
takeoff.
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A list of available log files will be displayed. Select the required log with the
BR encoder and push the BR encoder to begin the download to the USB
drive.
Tools - Waypoint Data (Loading Waypoints)
The Database Information screen allows you to load the CNv with waypoints
required for your flight.
1/ Put your waypoint file(s) on a thumb drive and insert into the ADC.
2/ Spin the TL encoder briskly clockwise to bring up the ribbon menu.
3/ Scroll up/down through the ribbon menu with the BR encoder to select
Tools.
4/ Scroll clockwise with the TL encoder to the Database Info screen. The CNV
will display the name of the current loaded waypoint file - and the number of
waypoints. (BGA_2013.STX is displayed in the example on the left.)
5/ Push/click the BR encoder to see the list of waypoint files on the USB
thumb drive.
6/ Scroll through the list with the BR encoder and highlight the desired
waypoint file. (HOBBS_13.STX is highlighted in the example on the left.)
7/ Push/click the BR encoder to load the waypoints in that file. The CNv will
display loading messages and status - then will display a finished message
with the file name and the number of waypoints loaded. (HOBBS_13.STX is
displayed with 159 waypoints in the example on the left.)
8/ Push/click the BR encoder to bring up the main navigation page. Profile
Home is the default.
9/ Select a new navigation waypoint using any of the waypoint selection
screens explained in the following sections.
Tools - Log Interval
The flight log record creation rate is adjusted using the BR encoder. The
settings will result in creation of log records every 1, 2, 4, 8 or 12 seconds.
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Tools - OAT Manual Adjust
If no temperature probe is fitted the pilot can enter a temperature (or forecast
temperature) for the current altitude and the instrument will use that to
approximate the temperature with varying altitude. An estimate within a few
degrees will provide good IAS/TAS correction and wind calculations.
Note: at present we use the standard atmosphere lapse rate. We may switch
to using an adiabatic lapse rate.
OAT probes are available
here
.
Tools - Pilot Event
This screen allows the pilot to records pilot event. The time of the last event
is displayed.
Tools - License
This screen allows the pilot to select and install a license from a usb memory
stick. Installation is only required once - the CNv will retain the license
information.
Tools - Profile
This screen allows profile selection from multiple available to provide
different CNv defaults / setups for different pilots or configurations.
The profiles are loaded on a USB drive and are typically selected prior to
takeoff.