The tubular bones of the birds are known to be extremely stable against shearing forces. After all, cannons were built according to this principle. In comparison, however, the best base is as stable as a straw. In favor the flyer on the base does not really have to be able to balance himself. In the best case, a flyer can do both, mostly it’s better for the base to get the control, especially if the flyer has reached the shape and weight of an adult. In sports acrobatics, the difference in size between partners rightly enters into the scoring.
Useful positions of the base to balance a flyer …
This category also includes tricks in which several bases balance a flyer without stabilizing each other.
For example, tossing with two bases to shoulderstand, double pitching to stand, 3-man-high …
At tricks for 3 where the base is a flyer at the same time, he must master both levels.
For example, 3-man high:
The middle man has to be able to balance a flyer on his shoulders but also to stand on someones shoulders as a flyer. In principle 2 figures, which an advanced should be able to manage. Due to the very wide distance between the base and the flyer, however, shearing forces are created which should always be secured with a lunge at the beginning!
In principle, the closer the contactpoint is to the center of gravity of the flyer, the easier it is to balance, as shearing forces only have a minimal effect. Maximum impacts of the shear forces are originated in duo-acrobatics with the one-armed handstand balanced by the one-straight-armed base. The distance between the center of gravity between base and flyer is maximal, while the stability against shearing forces is minimal.
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