  In a study of the elastic pion form factor for large momentum transfers based
on a modified perturbative QCD (PQCD) approach we have included helicity
components that are customarily neglected. Along with the inclusion of
transverse momentum, this gives a large suppression of the form factor from the
prediction of the original hard scattering model based on PQCD in the $Q^{2}$
domain where experimental data are available. We conclude that nonperturbative
contributions will dominate in this region.
