Specifications

 

                         Robbe Eolo (Glow)

 
Main rotor diameter: 870 mm
Tail rotor diameter: 182 mm
Weight: 1200 g
Height: 256 mm
Length: 700 mm

Pitch range  + 12/-12

Engine: Os-Max 15 CvRx 1.2HP 

Engine Temp  flying 100-120C (212-248F) , hover 140C (284F)
 
Gear Ratio    1:12.5  
Headspeed (not measured yet , but more than  sufficient)  
Planning and Building Hours for the Conversion - over 40 (took me a few months)  
flying time is over 3 hours now with great results, with no wear on parts and chassis (bending)