Another fine example of O.S. quality and power. This engine will find its place in the medium/large model category, ideal for scale applications and larger general enjoyment models.
I recorded 9,135 RPM with an APC 16/10 propeller and 8,710 RPM with an APC 18/8 propeller.
Fuel was PetroMax aka Klotz R50 at 32:1 and Morgans Coolpower Blue at the same ratio for identical results.
Consumption was 28.5 cc/minute at 9,000 RPM.
Very broad power band and very tractable. Desirable acquisition.