Total photodisintegration cross sections of H-3 and He-3 are studied in a w
ide energy range using realistic NN interactions and NNN forces. The techni
ques used for solving the dynamic equations are discussed. The addition of
NNN forces reduces the height of the peak and increases the cross section b
eyond 70 MeY by roughly 15%. A clear separation between the results with an
d without NNN forces is found in the tail region of the T = 3/2 component o
f the cross section.