|
|
 |
|
|
 |
|
|
|
|
|
|
Where Can I Fly My Anabat? |
|
|
Lacking a propeller, Anabats need lift to keep them in the air for any period of time. (Yes, you could just launch from a flat field on a windless day and glide around for all of ten seconds, but you'll end up with a soar arm by day's end.) Lift comes in basically two forms: thermal lift and slope lift (see diagram below). On hot days, when you see hawks and eagles flying over grassy fields and parking lots, they are staying afloat with thermal lift, or the warm air that naturally rises off the flat surface below. It is an invisible effect, but with some practice, and observation of birds, you can stay up for hours at a time. |
|
|
Thermal Lift |
|
|
|
|
|
|
|
The second type of lift occurs on hillsides and cliffs; when wind approaches and meets the elevating terrain, it is forced upward. This type of lift is much more reliable and easy to locate, and hence, better suited to the beginner (just make sure the bottom of the slope is 1-accessible, 2-not water, although sandy beaches are perfect, 3-not some type of road of freeway). Any type of rising air current exhibits an anabatic effect, a meteorological term meaning "relating to rising wind currents," thus, Anabat R/C Aircraft. |
|
|
|
|
|
|
Slope Lift |
|
|
|
|
