In late 1948/early 1949 Cessna
radically changed the design
of the 170. It was so different that
I would have
thought they would have given it a new model number, but instead it
became the 170A.
A dorsal fin was
added, the wings were all metal with tapered chord, the wing tips were
vee-struts were replaced with a single brace.
It really no longer looked like a blown-up 140
and was now quite
recognizable. The nicely preserved example above of a 170A was
shot at Santa
Municipal Airport in the late 1990s.