  The recoil properties of the product nuclei from the interaction of 3.65
GeV/nucleon protons and deuterons with $^{118}Sn$ target have been studied by
the method of catching foils on the beams of LHE JINR.
  The mathematical formalism of the standard two step vector model was used for
the analysis of experimental results. The obtained results for the protons are
compared with the ones obtained for the deuterons. The total energy of the
deuterons beam was 3.65GeV/nucleon. It is interesting to note that the forward
velocity v and the recoil nuclei kinetic energy increases linearly with the
increase of mass loss of target $\Delta A$, but seems to change its slope at
around $\Delta A=60$. It seems that light and medium mass products are produced
partly by a fragmentation mechanism.
