The parcel is displayed from 2h after sunrise to 2h before sunset and starts at the surface elevation at air temperature +3C - it seems to works better for my use case. I think it would be better to discuss on an other thread ?
Hi Peter. I am working on a flight planner, that you might find useful. The plugin calculates ground speed, from your IAS and Wind speed at your chosen alt, and determines the corrected ETE.
Can I ask: What is your airspeed ? (74kph). What are your waypoints?
Hi. tested it now and works.
Wait for plugin to load, then close left pane.
Right click screen (or longpress) for context menu.
In left pane a list of airspaces should appear.
Click to show country airspace.
You can open a number of countries, but too many will slow down plugin.
I use the sfc temp +3 degree for now as an approx - probably too much in the morning or when the cloud cover is important.
The surface temperature reported by the model does not seem to work better (I may want to give it an another try later).
Does it answer your question or is the question more about the temperature gradient ?