How Slope Soaring works!
(basically anyway)
Prevailing wind strikes the slope and as it cannot pass through the slope,
it is then forced up and over.
It is in this section of upward moving air that LIFT is produced.
The amount of lift produced is dependant on certain factors, such as windspeed,
shape of the slope and air temperature. A wind of 30km/h is sufficient
to create a updraught of 30km/h, which is why slope soarers are able to
attain height quickly and then dive down, converting the height into speed.
A slope where the wind strikes dead-on (perpendicular to the slope) is
ideal, as a side-on wind will greatly reduce the amount of lift produced
by the slope.
A slope with a concave "Bowl" will compress the wind as it is funneled
up the slope and create even better lift.
A good prevailing wind will provide hours of lift for slope soaring.
The lift-band can extend away from the slope for several hundred metres
and way up above the top of the slope. This makes for a large flying area.
As the wind recedes, the lift will start to drop-off and then it is time
to head back to land on top of the slope.
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