Here we have Bellanca Pacemaker G-CYVG of the RCAF on floats. The photo was taken in 1931 at Fort Fitzgerald, Alberta. The RCAF used the Bellanca mostly for photo survey work. (Photo courtesy of the Canada Department of Mines and Technical Surveys/Library and Archives Canada.)
Modeler's Note: I understand Khee-Kha models of Alaska does a vacuform Pacemaker in 1/72. I'll have to get one someday.