The Super III is a Musketeer.
It's designator is an A23-24, and is the precurser to the Sierra.
It is basically a Sierra with fixed gear.
The 150HP Musketeer turned into the Sport.
The 180HP Musketeer turned into the Sundowner.
The 200HP Musketeer turned into the Sierra.

Yup - that's the one.
In Canada it was offered only as a military trainer.
I loved the one that I flew - congratulations!

Tony



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Tony Roberts
PP-ASEL
VFR OTT
Night
Cessna 172H C-GICE