Your LK remembers all the thermals youhave been circling in during the current flight.

Well, most of them! Only those where you actually climbed, not those were you did not gain any altitude.

And a maximum of 100 thermals per day, which should be far more than enough.

You don't need to configure anything for this feature, being automatic.

Before you ask: these thermals are NOT saved to any file. They will not survive for the next LK run.


Old thermals appear on the moving map with a special icon and a name, which is built using the local time you entered the thermal.


In the picture above, there is a TH1540  , a virtual turnpoint which is the thermal you have been climbing in at 15:40 today.

That's the position where you actually started climbing in that thermal, at a certain altitude.

As you know, the powerful multitargets let you select the last thermal . Click on T> on the left upper corner on the screen until you get to the L> multitarget, the Last thermal.


Now you are pointing to the thermal you met at 15:40 today, and if you zoom a bit you will see its diameter drawn as a circle around the estimated center. The circle has a radius of 100m for gliders, and much smaller for paragliders.


Now change to infopage 3.3 , by clicking shortly in the center of the bottom bar until you get to 3.1, and then click on the right or on the left of the map to flip to 3.3 (you can also swipe to do that, like on a smartphone).


This is the Thermal History page! It can of course be disabled in configuration menu.

Click on Configure Info Pages

And then select 3.3 THERMAL to disable it, or to enable it back.


You move on the 3.3 page just like you do on all infopages. Click up to move up the selection, click on the lower part of the screen, UP the bottombar, to bring it down. The "cursor selection" will rotate.

You can advance to next pages, by swiping down or up, if there are more pages available.


THR 1/1 is telling us that we are on page 1 of 1 available, so we cannot go further. All the thermals are listed on this screen.

Now do a long click in center of the page, count 1 second and release. You get the selected thermal details:


Details are telling us:

We entered the thermal at 15:45 local time.

We started climbing at 650m ground, up to 1542m

The average lift value was 2.2 ms, positive of course

The Teamcode for this position is "Lima Hotel Romeo".

If you report this position to another pilot, he can insert it and have the M> multitarget driving him to the same position.


Now you can SELECT it, if you want to fly to this thermal.


And you are immediately brought to the map page, with the L> multitarget updated for this thermal.

The L> will not be changed until you enter a new thermal (which will replace this one) or you select another one.


The 3.3 page can be sorted for thermal time, last thermal is the first in the list.


Or by distance, direction, Average lift, and arrival altitude.


Simply click on the THR  , Distance, Direction, Avg, AltArr text on the top of the map to change sorting order.

Notice that the currently SELECTED thermal is marked on the list with a leading  >   (  >TH1530 )


The waypoint selection list will also show all thermals, as ordinary turnpoints.


Notice that if you been climbing in a thermal near by a known waypoint, like in this example


When you select the thermal for page 3.3 you will also get in the title window the name of the nearest waypoint to the thermal.




  • The 3.3 page is listing red and italic all thermals that are currently unreachable.
  • The thermal position is assigned using the aircraft position just after started thermalling, and its altitude. Thus you will be pointed exactly to the place you were (right or wrong) just before you started climbing.
  • When selecting multitarget L> in map mode, a circle will appear around the center of the selected thermal, at high zoom levels.
  • The circle will not appear at low zoom levels, being not enough visible on a small screen.
  • The circle is drawn around the thermal center, while the multipoint L> target is slightly different because it is indicating the point you have actually entered the thermal, and its altitude.
  • Thus on the moving map you will see both the entering point, and the thermal center, giving you an exact idea of how you started thermalling there, and were you ended up to.

Some thermals are added for the simulator, appearing of course also in 3.3.  SIMULATOR mode only!
The closest thermal is .. real for the SIM, meaning that going to that thermal will show real sink and lift!



Before LK8000 I was using...