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Hanggliding using Thermals - which weather approach?

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Hanggliding using Thermals - which weather approach?

Postby superkraft » Wed May 22, 2019 5:18 pm

Hello Forum,
I am new and very excited about FlightGear.

I would like to use flightgear to fly with the Icaro Hangglider and in order to practise flying with thermals.
Until now i have been very unsuccessful trying to use thermals in order to rise.

I tried to enhance the settings with the command line options, but nothing worked so far.
Of course a hangglider is much slower than a real plane glider.
Do you have any basic suggestions, recommendations?

Thx :)
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Re: Hanggliding using Thermals - which weather approach?

Postby Thorsten » Wed May 22, 2019 5:21 pm

I guess the Wiki is your friend :D

http://wiki.flightgear.org/Soaring
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Re: Hanggliding using Thermals - which weather approach?

Postby superkraft » Thu May 23, 2019 12:05 pm

Thanks Thorsten!
Yes, i already read it, i have the feeling it is more helpful for a plane glider like the ask21 but with the Icaro Laminar, this appears to be close to impossible.
Or it is just my limited skills :)
Are you successful using the thermals with a delta-wing hangglider?
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Re: Hanggliding using Thermals - which weather approach?

Postby Thorsten » Thu May 23, 2019 12:15 pm

The faster you are, the more difficult it is to circle inside a thermal because your radius is larger. A hangglider should be fairly easy once you reach the thermal - of course getting there without losing too much altitude might be a challenge.

(Must be years since my last FG hangglider flight - but I've circled with our Dragon in a thermal a few months ago, she's also not very fast).

i have the feeling it is more helpful for a plane glider like the ask21 but with the Icaro Laminar, this appears to be close to impossible.


Why - what exactly is your trouble?
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Re: Hanggliding using Thermals - which weather approach?

Postby superkraft » Thu May 23, 2019 12:18 pm

I basically tried two different approaches:
The first one with detailed weather, the second one with basic weather and an extra .xml file for creating manual thermals.

In this post the first attempt: here my settings for detailed weather:

Detailed weather /High pressure region:
- Tile selection mode: realistic weather
- Thermals effects - on
- Generate Thermals to on
- convective conditions --- i tried everything from rough day to low convection.
- turbulence: rather weak
- Airmass and Cloud patterns rather large

I used the following starting command line syntax:

--lon=3.1022 --lat=44.1097 --heading=270 --altitude=3500 --vc=31 --timeofday=noon --time-offset=03:00:00 --enable-hud
--disable-real-weather-fetch --aircraft=Icaro_Laminar_13_MRX

The location is in France close to Millau. I also tried other locations with similar settings.
But i still don't manage to RISE ;(

Any suggestions ? THX !
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Re: Hanggliding using Thermals - which weather approach?

Postby legoboyvdlp » Thu May 23, 2019 12:21 pm

Realistic weather will work much better than basic weather (in fact I don't know if basic weather will even work)

Try flying in the afternoon with high convective activity - that should work well. You can try flying along ridges as well, which will help you gain altitude.
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Re: Hanggliding using Thermals - which weather approach?

Postby Thorsten » Thu May 23, 2019 3:07 pm

But i still don't manage to RISE ;(


Why is that?

Because you can't find any thermals, because you're unable to center them or because you're getting too much into the sink around them?
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Re: Hanggliding using Thermals - which weather approach?

Postby Thorsten » Thu May 23, 2019 4:14 pm

Quick test with the Icaro - working fine for me, thermal nicely centered on the second circle.
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