A supplier dropped by today and gave some RC stuff from his deceased father (plane, radio equipment, this motor).
Does anyone know details about this motor. Eric Adams? Roy Bourke? etc.
A Dennymite .57 ci spark ignition. From a quick look at the net it appears to be from about 1938-'39. It has a metal tank (they switched to a clear tank in 1939). The serial number is 1827 stamped on the mounting lug.
Any idea how rare it is, its value and collectibility for those who like oil.
Frank
http://www.ctie.monash.edu.au/hargrave/dennymite.html