By definition, these are the sailplanes and gliders that get their lift from air that is rising up the face of a slope. As a gross generalization, these models tend to be faster and more aerobatic than their thermal soaring counterparts, and are often ill suited to flat field flying where the primary source of lift is from thermals. A hill or ridge that cuts across the prevailing wind direction, will force the air mass to rise up windward side of its slope, thereby generating lift. Coastal slope sites are often ideal as the air mass arrives  from the ocean and is usually free from turbulance.

Bf-109E  power scale soarer SparrowHawk original design Midjet flying wing Obelix flying wing

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last updated 07/07/2000