  We examine effects on the charge states of energetic ions associated with
gradual solar flares due to shock heating and stripping at high ion velocities.
Recent measurements of the mean charges of various elements after the flares of
1992 Oct 30 and 1992 Nov 2 allow one to place limits on the product of the
electron density times the acceleration or coronal residence time. In
particular, any residence in coronal loops must be for < 0.03 s, which rules
out models of coronal transport in loops, such as the bird cage model. The
results do not contradict models of shock acceleration of energetic ions from
coronal plasma at various solar longitudes.
