Don't remember the make, but it was a rubber powered Catalina. Cardboard formers and keel. A real lawn dart. Of course, that was during WWII and balsa was nearly unobtainable. I did find a source...from recovered ship hatches that were balsa inside to make them float. Then you had to cut them to size with a saw. And a ration card to get gasoline for my Ohlsson 23. I could buy a gallon a month! LePages glue...I could go on and on. We really have it good nowadays.