It is my first serious F3C helicopter of that time. I stripped the mechanic and rebuild all with new bolts, bearings, ecc. The body is not perfect but still nice. I used a OS 61H WC engine with a full Picco exhaust for more power.
Mr Sitar from Austria supplied me two pairs of blades of that time. They are still the best Blades for autorotation in my opinion and the Eagle fly really well.
Like gyro i fitted a vintage JR NEJ-900 gyro. here some pics.