It too the theory of the closed superstrings with N=2 supersymmetry. However in this case gravitino have an identical kiralnost in relation to 10-dimensional group of Lorentz so it is the kiralny theory (Hiralnost - property of object not to coincide, not to be combined with the mirror display (in flat mirrors at any movements and rotations). Again there is no calibration group, but there is D-brany with-1, 1, 3, 5, and 7 spatial measurements.
The essence of the theory of Kalutsy-Klein consists that some sets, it seems, not of the connected fields in four-dimensional space can appear splinters of a uniform field in space of higher dimension. At the existing in 10 and 11-dimensional spaces of fields there are enough components to pack into them all fields which are available in a chetyrekhmeriya. But how to explain why the desyatimery broke up on 4 + the 6th measurements, but not, for example, 3 + 7 or 5 + 5?