  An explicit model of fiber bundle with local fibers being disinct copies of
vector 3-space is introduced. They are endowed with frames which are used as
local isotopic ones. The field local of isotopic frames is considered as gauge
field itself while the form of gauge connections is derived from it. A
covariant equation for the field of local frames is found. It is shown that
Yang-Mills equation follows from it, but variety of solutions of the new
equation is highly reduced in such that no ambiguities (Yang-Wu and vacuum
ones) arise. It is shown that Lagrangian for the field gives non-zero trace for
the stress-energy tensor and zero value for spin of the field of plane wave.
Some new solutions for the fields of punctual source and spherical wave are
found.
