In this article it is considered questions definition of maximum angle deflexion of rope
which raid on the block. Lasting of rope considerable definition in dependence from angle deflexion
because the rope can be refracted on border of brock.
In the time of decision definition limit of angle deflexion of rope on block or drum proceed
from condition what the rope leave ditch or come in ditch flowing and not have fracture on crest.
Research which conduct in article give possibility to receive more exact importance of angle deflexion rope in dependence from geometrical and hard index of rope and drum.