Front and Back parts are mixed up.
Thats not a big issue and its self corrected after the next turn.

• A right click on it corrects it too.

Different Screen resolutions result in different looks of the text Hud.

• Resize the Compass

(Video Tutorial)

In laggy conditions it may happen, parts of the compass not showing right away. Its an SL thing. That happens to other Huds too.

Try one of this:

• Wait or turn around a little

• Right click on Compass

• Switch it Off / On 

• Try the shortcut ctrl-shift-R twice. (For this to work, Developer Menu must be active (ctrl-alt-Q)

• Detach / Attach the Compass

WindCompass uses the attachement point "HUD Center". Dont worry if that spot is already taken. 

• Right click the compass in inventory and select "ADD"
  Your other Hud and Compass are now sharing the same spot.

For Center 2 you need new position and rotation data. Follow these steps:

• Attach the Compass to Center 2 

• Right click, edit it

• Go to tab "Object"

• Copy this position data: <0.00000, -0.15514, 0.40935>  and paste at Position block (press the lower "P" button)

• Copy this rotation data: <0.00000, 270.00000, 0.00000> and paste at Rotation block (press the lower "P" button)

• Now move it, where you want it to.

(I recommend to "ADD" the Compass to the HUD Center as described above.)

Try one or some of this:

• Use short names for the USB notecards.

• Edit the USB notecard to shorten the long lines in question. (Video Tutorial)

• Resize the Compass (watch Video Tutorial)

Note: Since version 4.4 the text will be truncated.

Don't worry.  

• Go to Options > Channel,  enter   btn

Yes.  

• Click them.

• Check, if Racemode is OFF

• Check, if Gestures Mode is OFF

Note: The Winddirection and Windspeed buttons are disabled in Race- or Gesture Mode.

A Race-ID will be added to the boat name.
The Boat starts and KEEPS listening for Racewind!

So, no need to type "cruising" ... "racing" over and over!
TIP: WindCompass can do this for you! Have Smart Mode activated.
As soon the racewind is broadcasting, Boat and WindCompass picks that up.

• Make sure, a windsetter buoy or a Race Director is in shoutrange and broadcasting racewind.

• Use a boat with supported windsystem (BOSS or BWind). 

• Have Smart Mode activated. Toggle "Racemode" Off and back On.

Note: WWC-wind boats (e.g. Trudeau, Fizz, Nemo) are not supported in this version.
If you use a WWC boat, set Cruisewind manually in Compass.

• Make sure, a windsetter buoy or a Race Director is in shout range and broadcasting racewind.

• Click "Send Wind" to get the boat to aquire Racewind again.

• Click Racemode button Off and back On.

• Toggle Racemode button Off and On.

Note: Before each race make sure, Compass and boat get the same and correct racewind.
If not racing, turn this function off. Tip: Smart Mode does that for you.

This can happen, because of Grid Disconnects and grey screen Quits occurring since March 2019. 

Or you clicked the Download button during race.
By default there is a "Warn Me" message, before dropping Racewind, to prevent loosing Racewind by accident.

If you're in a race...

• Sit in boat, check, if your boat still has Racewind (green Racewind text above Compass). 

• If yes, activate Smart Mode, (Click the "T" of the Word "Smart")

• Smart Mode gets the boats racewind

Tip: Leave Smart Mode activated.

No. Variations are randomly processed within the boat script. The Compass can't read those scripts.
Compass provides the general AWA and the rest is on skippers skill!  ;o)

You probably changed the boatname to something personal.

• In order this Function to work, make sure the boat name begins with the original name! 

• Add your personal boatname to the original name. e.g.: "Bandit IF - My boatname".

You probably use a Volvo 70 or some other BWind boat.

These boats listen to chat commands from owner only and not from Huds.
So, WindCompass send functions have no effect.

Workaround:

• Use your chat commands or wind gestures for your boat (a free gesture set is provided)

• Make the WindCompass listen to them too. Activate "Gestures".
  (You may have to enter the boat channel number in Compass too:  Options > Channel)

Also see Video Tutorials

Since Version 4.3 there is practically no limit, this means the usual SL limits for prim contents apply.
I stopped a loading test after 2000+ loaded notecards (version 4.3 beta).

Yes. 

• Click the  X  icon on NAV Hud to open the Delete Dialog.

• Select "Delete All"

After a confirmation dialog, all notecards will be deleted from Compass.

Yes. Do this:

• Do NOT detach the Compass yet!

• In inventory create a copy of the current worn Compass (This one still contains all notecards).

• Now detach the Compass.

• Wear that just created copy.
  All notecards are back!

Around 120 -190 waypoints depending on Lag.

This probably happen on attempt to load a very long waypoint list or a wrong notecard.

Try the following:

• Wait a little. If the route  is still not loaded after 59 seconds, the loading will be canceled.

• Switch NAV Off / On to cancel the loading.

Make sure to load a correct USB notecard.

To prevent the map from opening, when advancing to next waypoint, RLV must be activated.
You need an RLV capable viewer (e.g. Firestorm). 

• In Firestorm go to Preferences > Firestorm > Extras > Enable "Allow Remote Scripted Viewer Controls (RLVa)"

• Also check in the NAV-Settings if the option "Map" is set to Off.

Use a RLV capable viewer (e.g. Firestorm).
Check the following settings in Firestorm:

• Preferences > Firestorm > Extras > "Allow Remote Scripted Viewer Controls (RLVa)" > set to ON

• Preferences > Firestorm > Protection > "Allow scripts to show map UI (llMapDestination)" > set to ON

I always have to click the sky or the water to regain control!

This happens on mark advance when the map opens and the map takes the focus.
To prevent the map from opening, when advancing to next waypoint, RLV must be activated. 

You need an RLV capable viewer (e.g. Firestorm). 

• In Firestorm go to Preferences > Firestorm > Extras > Enable "Allow Remote Scripted Viewer Controls (RLVa)"

• Also check in the NAV-Settings if the option "Map" is set to Off.

• Make sure Auto Advance is active. Go to Options > NAV > Advance.

• You must be within range to the mark, to trigger the Auto Advance. The Default is 50 meter.
  You can set this Range in Options > NAV > Range.

Also take into account, Lag can impact script timing, so it can happen on simcross/lag/many boats, a waypoint is not shown in time.
Tip: Never rely on USB route only. Always keep a routemap handy and memorize its layout, to be prepared best.

• Use short names for the USB notecards.

• Edit the USB notecard to shorten the long lines in question. (Video Tutorial)

• Resize the Compass (watch Video Tutorial)

Note: Since version 4.4 the text will be truncated.

Yes. 

• Go to Options > NAV > NAV OFF.

• To reactivate it, go to Options > NAV.

Some words about Avatar script load...

In general, wear as less scripts/huds possible and as much as needed, same goes for the passengers / crew.
Often it happens Skipper falls off the boat after simcross or similar effects occur.

• Reason:
  On simcrossing the server  transfers the boat and avatar(s) separately to the next sim and puts them together after crossing.
  A light scripted avatar arrives earlier than a heavy scripted boat in the next sim and vice versa.
  The next sim waits for the "heavier" one to arrive, but if it takes to long, a timeout occurs and boat and avatar arrive separated in the next sim  or crash.

• Where to look?
  In Firestorm, go to Menu Avatar > Avatar Health > Scripts.
  All worn avatar scripts and the boat script are listed.
  Check that list for script count. If you sit on boat and its not listed yet, sail to the next sim and refresh that list.

• What to do?
  Align the avatar script load to the boat script load.
  Detach uneeded Huds, attachements, genitals or use an unscripted copy.

Example:
Bandit IF ~650 kB  vs. Skipper 200kB = unbalanced
Bandit IF ~650 kB vs. Skipper 300kB + Crew 300kB = well balanced

Since the simcrosses improved with the new server roll outs 8/2020 we are experience script error messages like that:
The boat sends a script error: "llStopAnimation: Script trying to stop animations but agent not found"

• This why it happens:
  On simcross, the avatar gets separated from boat/vehicle and both will be sent to the new region separately.
  After simcross they will be reunited again. Normally you don't notice that.
  This script error happens, when they still in status not reunited. (so the script is a bit faster than the simcross reunite procedure)

• What to do?
  You can ignore that message.

• If this message still bothers you, you can disable it in Firestorm:
  In Firestorm go to Preferences > Notifications > Objects & Scrips...  uncheck: "Report Script Errors"
  This might be a temporary workaround, because it turns all script messages off!

• Firestorm offers a Quick Preference Window, where you can add a checkbox for this:
  - Go to Quick Prefs (you might add a toolbar button, if not visible)
  - in Quick Preference window go to Configure mode
  - press "+" to add a control, rename it to something descriptive like "Show Script Errors"
  - choose debug setting from drop down list "ShowScriptErrors"
  - select Type of control button "Checkbox" or "Radio"
  - press X to save that
  Now you can turn On/Off the script warnings quickly.

For more info read:  https://wiki.firestormviewer.org/fs_quick_preferences  

Hopefully the Labs get a fix very soon.

Since the simcrosses improved with the new server roll outs 8/2020 we are experience script error messages like that:
The boat sends a script error: "Camera control currently only supported for attachments and objects on which you are sitting."

• This why it happens:
  On simcross, the avatar gets separated from boat/vehicle and both will be sent to the new region separately.
  After simcross they will be reunited again. Normally you don't notice that.
  This script error happens, when they still in status not reunited. (so the script is a bit faster than the simcross reunite procedure)

• What happens to my boat?
  This error has some weird side effects. The skipper is stuck in animation or sitting up above the seat.
  The boat is still working! Just the sitting looks odd.

• What to do?
  A re-sit often helps, but if you're in a race... re-sit is a bad idea..., keep going and re-sit after race.

• Tip: Uggo Vieria created a workaround for it. Replace the AVsit scripts in your boat (boat has to be modify).
  Find the script here: https://marketplace.secondlife.com/p/AVsitter-129-fix-for-vehicles/20869617.

Hopefully the Labs get a fix very soon.

• If you use Firestorm, go to Preferences > Notifications > Objects & Scripts > Report Script Errors in: > check "Nearby Chat"
  If you use a different Viewer, try to find a similar option there.

This happens because of Grid Disconnects and grey screen Quits occurring since March 2019.   

• To prevent this from happen, make your settings as usual. Then DETACH and RE-ATTACH the Compass.
  Note: Detaching saves Hud settings.

• If you're in a race...
  - Sit in boat, check, if your boat still has Racewind (green Racewind text above Compass).
  - If yes, activate Smart Mode, (Click the "T" of the Word "Smart")
  - Compass gets the boats racewind

Tip: Leave Smart Mode activated.

By Default this function is turned Off. 

• To enable it, go to Options > Channel,  enter   sc      (Standing Cam)

Yes. 

• Go to Options > Channel > Enter   cam
  (This also stops the listener for its chat command.)

• Move your avatar a little, the spinning stops.

After detaching Gesture-Sets, Compass or Huds, i lost my hair and other parts!
This may happen after bumpy region crossings.

• Don't detach anything, just RE-WEAR your current OUTFIT.

In rare cases after simcross it may happen, the compass freezes up.

Try this:

• In Firestorm, go to Menu Avatar > Avatar Health > Refresh Attachments 

• Detach and Re-Attach the Compass. 

Note: This might reset the Compass to its defaults!

Those BWind boats listen to chat commands from owner only and not from Huds!
So, WindCompass send functions have no effect.

Workaround:
Use your chat commands or WindGestures for the boat and make the WindCompass listen to them too!
Activate "Gestures"!  Also see Video Tutorials.

Those boats use a different windsystem called WWC (wind, waves and currents). The WindCompass supports Boss and BWind systems only. You can use WindCompass with WWC boats as well. Just set the winds on boat and Compass separately and select a BWind template in Boats.

The red "No Go" zone is based on the AWA (Apparent Wind Angle) and is variable depending on the boatspeed.

Example:

• You're going for a bicycle ride and get ready to start. A light breeze comes from the side.
  That light breeze is the "True Wind" and comes from an angle which is called "True Wind Angle" (TWA).

• Now you start cycling and increase speed...

• That light breeze from before changed to a stronger headwind. Now that "wind" apparently comes from front. Its called "Apparent Wind" and the angle where it comes from is called Apparent Wind Angle (AWA). This wind is created by your own speed.

• So, the faster you go, the more the wind seems to come from front. Thats why the AWA is variable and the red "No Go" zone keeps moving.

You can turn off the Timer. This will stop Listen for Startsignals and reduces a little contribution to Lag.

The abbreviation "HUD" comes from military aviation and stands for "Head Up Display".
This means that the flight instruments were projected onto a glass plate in the field of vision of the pilot.
He no longer had to look down at the instruments, so he could keep his head "up".

• HDG
  heading (the direction in degrees, where the bow is pointing to)

• TWA
  true wind angle (the angle from boat bow to the incoming wind)

• AWA
  apparent wind angle (the angle from boat bow to the incoming and created wind, when the boat is moving)
  (read more: https://en.wikipedia.org/wiki/Apparent_wind)
  To get the idea, use the animation on this website.

• VMG
  velocity made good (indicating the speed towards the wind)
  (read more: https://en.wikipedia.org/wiki/Velocity_made_good)

• VMC
  velocity made good on course (indicating the speed towards a target)
  (read more: https://en.wikipedia.org/wiki/Velocity_made_good)

• BTT
  bearing to target (the angle from boat bow to the target)
  (read more: https://en.wikipedia.org/wiki/Bearing_(navigation)

• NAV
  Navigation (in the PRO version its the module to process waypoint lists)

• ETE
  Estimated Time Elapsed (time to go to target)

• ETA
  Estimated Time of Arrival

• WP
  Waypoint or mark

• USB
  Ultimate Sailor Buddy. (the famous navigation Hud from Uggo Vieria. Its notecard system has set a standard.)

• Have a look at the  Feature Comparsion Table.

For performance purposes they are removed from WindCompass 4.5.
I saved them here for your convenience:

1. If Compass looks weird.  Right Click it.

2. Beginner?  For a simpler layout,  go to Options > BASIC

3. See all functions at a glance:   https://sites.google.com/view/windcompass/home/overview

4. Whats new in Compass?  Go here:   https://sites.google.com/view/windcompass/home/info

5. Set wind direction:   Click the cardinal markers or the ring.

6. Set wind speed:   Click the numbers or '...' on the right.

7. Race:  Racwind is broadcasted by a windsetter or a Racedirector (RD) within shoutrange.

8. Race:  Be in shoutrange to the windsetter or Racedirector (RD) to get racewind and anouncements.

9. Note:   WindCompass can 'receive' Racewind,   not 'create' Racewind. 

10. Before race...   Get fresh Racewind!    Toggle Racemode OFF and ON.

11. How do i know,  boat has racewind?   Look at wind infotext above Compass: '...Racewind'

12. Before you crash...   Be prepared to keep all settings:  Detach and Re-Attach your HUD(s).

13. To catch Countdown start signal,   be in same region as the raceline.

14. Stopwatch or Countdown? Only one can run at a time.

15. During a race...   Don't touch Racemode button,   to avoid dropping racewind by accident.

16. Click on Text to change its displayformat.

17. See all Compass buttons you can click:   https://sites.google.com/view/windcompass/compass/the-hud

18. For best text fit,   resize the Compass.  Go to Options > Edit > Size  and  Text.

19. Set Compass transparency.   Go to Options > Edit > Alpha.

20. You want your old Upload- / Download buttons back?    Go to Options > Channel > enter 'btn'

21. Text is colorable.  Go to Options > Textcolor.

22. For a proper Boat Detect,   Make sure, boat name begins with Original name!  (e.g. 'Bandit IF - my boatname')

23. Find a list of all supported sailboats:   https://sites.google.com/view/windcompass/compass/boats

24. If your boat is not listed or detected,   select a generic boat from menu.

25. Boat Detection gets in the way, everytime you sit on furniture?   Minimize Compass.

26. The fastest way to set wind:   Windgestures!   Find them in your WindCompass folder.

27. If you use Boat Info Huds:    Click below Compass to toggle Boat Info Display on/off.

28. If your boat don't accept chat commands from Compass or Huds...   Use Windgestures for boat and Compass.

29. Enter Boat channel number here:   Options > Channel > enter number.

30. NAV:  Click on infotext to open map.

31. NAV:  See all buttons you can click:   https://sites.google.com/view/windcompass/nav/the-nav-hud

32. NAV is compatible to USB notecards.  Just drag them onto compass.

33. NAV is compatible to USB gestures.

34. NAV:  To prevent open map on each waypoint,   enable RLV.

35. NAV:  Instead of a full SLurl   you can enter just a region name.

36. NAV gives warnings,   when moving towards Region Border, Corner and End of World.

37. Watch Video Tutorials:   https://sites.google.com/view/windcompass/quick-start/tutorials

38. FAQ - find answers here:   https://sites.google.com/view/windcompass/faq

39. Setup - step by step:   https://sites.google.com/view/windcompass/quick-start/setup

40. Compass can remember your last Position.   Go to Options > Position.

41. If the boat camera is broken,   try the camera in Compass.

42. You can control the Camera with gestures.   Find them in the WindCompass folder.

43. To activate Cam when standing,   go to  Options > Channel > enter  'sc'

44. Sail with sailors point of view!   WindCompass keeps the directions in mouselook.

45. Sail Trim Display:   Hard to see the difference Aqua / Green?   Click the little 2 blue dots to select other blue.

46. Click AWA dial ring numbers to change them.

47. Can i deactivate the colored trim hints?    Yes,  Click them

48. The Shouter shout things said in local chat.   Click the Megaphone.

49. Click the little gear next to Megaphon for Shouter settings.

50. If skipper and crew use WindCompass,   skipper can sync wind on the crews one.  Crew = Gestures,   Skipper = Send Wind / Smart Mode.

51. Smart Mode sends wind,   when you sit on boat and as soon you raise sails.

52. Smart Mode turns Racemode OFF on stand,   to avoid bringing old racewind to a new race.

53. Smart Mode gets racewind from boat, on re-sit.

54. To see a list of all additional commands,   go to Options > Channel > enter 'help'

55. Just need the Compassring?   Go to Options > Edit > Zones.

56. Never take back a used boat!   (scripts can be broken)   Always rez a fresh boat.

57. Inventory...    See newest items on top.   Go to menu Inventory > Sort > by Date.

58. For best performance...    Reduce as many scripts    (Try to get below 20 scripts),   Detach any unneeded Huds, AOs and other bits.

59. To check your script usage,   go to Firestorm menu   Avatar > Avatar Health > Scripts.

60. To check for latest WindCompass,  Wear the Unpacker Box or Redeliver Box.

4 options are available:

• Wear the Unpacker Box (checks for updates and  sends the newest version)

• Wear the Redelivery Hud (forces to send the newest version)

• Go to:  My Marketplace > My Account > Order History > Select the item > click the link "Redeliver Item"

• Or send me an IM, i will check and send you the latest Version asap.

Go to Options > Channel.   You can enter following commands:

• mem = script memory info

• count =  Enables/Disables if Timer keeps counting after countdown reaches zero

• trim = Enable/Disable Sail Trim Display (also its Listener)

• add = Enable/Disable external AddOn

• ete = calculate ETE based on  Speed or VMC  (based on speed is useful for prestart tactics)

• cam = Enable/Disable Camera function (also its Listener)

• sc = (Standing Cam) Enable/Disable Camera availability upon standing

• col = Toggle statuscolor infotext Boat-Racewind:  (use textcolor or green)

• fs = Toggle Flying Shadow zone layout 1 or 2

• btn = Toggle buttonlayout (version 4.3 or new layout)

• nq = (no question) Enable/Disable confirmation when deleting one route, (The confirmation for deleting all routes is always enabled.)

• help = list of available commands

The fastest way to set wind for boat and Compass!

Free Gesture Sets provided! Look in the subfolder "Wind Gestures". You will find 3 sets: 

• BOSS (for channel 29000) - Bandit and TMS BOSS boats

• BWind (for channel 29000) - Bandit and TMS BWind boats

• BWind (for channel 0 and 29000) - standard BWind boats

Note: Check, if those gestures not conflict with already active gestures! To check them, press ctrl-G.
For its keyboard layout look here.

2 gesture sets are provided for

• NAV - (next, previous mark or refresh current mark)

• Camera - (On/Off, mode 1, mode 2, mode 3 or cycle modes)

Note: Check, if those gestures not conflict with already active gestures! To check them, press ctrl-G.

Find some Addons for boats that work standalone or with WindCompass here.