ORIGINAL: futaba1024
Hi Bill.
The small multi, I think you were refering to was the G-mark .30 five cylinder radial, had one years ago , it ran quite well made wierd sort of noise with all those gears, never ran it long enough to wear the gears out......... Wish I had kept it , they seem to be making quite good money on Ebay.
Martin.
Yes have one of them, It started on the first flip on the first start that I ever did on it. I guess that I was lucky. It ran well and was smooth with a neat mechanical whirring sound, idle was good and fuel consumption was really good for what it was, which was 5 G-Mark 061's geared together in a common casewith a single carb.
Power was it's downfall though. This motor didn't generate enough power to get out of it's own way. It was rated as a thirty with the power of a 10.
Same for the G-Mark 12 and 30 twins. Neat but not really practical. The 30 twin did fly a Cub though as it was not a demanding model power wise.
Dennis