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Soaring: Difference between revisions
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=== Advanced Weather === | === Advanced Weather === | ||
[[File:Good-soaring-advanced-weather-settings.jpg|thumb|right|More or less the easiest-to-fly thermal weather ( | [[File:Good-soaring-advanced-weather-settings.jpg|thumb|right|More or less the easiest-to-fly thermal weather (without turbolences, for beginners)]] | ||
The [[A local weather system |Local Weather]] package (for Flightgear 2.0.x and 2.4.x) or [[Weather#Advanced_Weather|Advanced Weather]] (2.6.x) has the option to automatically generate thermals along with the convective clouds<ref>The [[Weather#Advanced_configuration|Wiki entry]] has advanced details on configuration options</ref>. For this, the checkbox 'generate thermals' has to be selected. The | The [[A local weather system |Local Weather]] package (for Flightgear 2.0.x and 2.4.x) or [[Weather#Advanced_Weather|Advanced Weather]] (2.6.x) has the option to automatically generate thermals along with the convective clouds<ref>The [[Weather#Advanced_configuration|Wiki entry]] has advanced details on configuration options</ref>. For this, the checkbox ''generate thermals'' has to be selected. The sliders in ''Convective conditions'' in the Advanced Settings'' dialog modifies the behaviour of the thermals: for 'low convection' it will generate thermals with a large radius and only modest lift, for 'rough day' it will generate strong lift in narrow thermals. To add realism, move the ''Turbolence'' slider in the ''stronger'' direction, but this will make finding and using the thermals harder. | ||
If you want it easy, dial turbulence to zero and the convective slider more left than right - very broad thermals are too weak to carry most gliders, but strong narrow thermals are really hard to find and fly, so you want them somewhat broad for starters.<ref>https://forum.flightgear.org/viewtopic.php?p=386168#p386168</ref> | If you want it easy, dial turbulence to zero and the convective slider more left than right - very broad thermals are too weak to carry most gliders, but strong narrow thermals are really hard to find and fly, so you want them somewhat broad for starters.<ref>https://forum.flightgear.org/viewtopic.php?p=386168#p386168</ref> | ||
The convective cloud system generates rather realistic results: | '''The convective cloud system generates rather realistic results:''' | ||
* the number of thermals is maximal around noon and the strength of thermals is maximal in the early afternoon | * the number of thermals is maximal around noon and the strength of thermals is maximal in the early afternoon | ||
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As a result, you will almost never find good soaring conditions early in the morning or strong thermals over the sea. Any 'high pressure' weather situation will generate at least some amount of convective clouds, low pressure situations usually do not. | As a result, you will almost never find good soaring conditions early in the morning or strong thermals over the sea. Any 'high pressure' weather situation will generate at least some amount of convective clouds, low pressure situations usually do not. | ||
In order to set up ridge lift, select wind model 'constant' and set the wind perpendicular to the slope with 10–20 kt (5–10 m/s; 18–37 km/h). Advanced Weather computes the boundary layer dynamically dependent on terrain, as a result there will be a realistic reduction of windspeed for a landing in the valley but not at mountain slopes. | In order to set up ridge lift, select wind model 'constant' and set the wind perpendicular to the slope with 10–20 kt (5–10 m/s; 18–37 km/h). Advanced Weather computes the boundary layer dynamically dependent on terrain, as a result there will be a realistic reduction of windspeed for a landing in the valley but not at mountain slopes. You need to activate the ''terrain effects'' and also the ''terrain presampling'' to activate generation of ridge lift. | ||
Advanced Weather has a working model for wave lift, but so far no way of automatically detecting the conditions which lead to a lee wave, thus in order to use it, some Nasal coding is required. | Advanced Weather has a working model for wave lift, but so far no way of automatically detecting the conditions which lead to a lee wave, thus in order to use it, some Nasal coding is required. | ||