Gerd
Senior Heliman
Location: Vellmar/Germany
| Here some new experiences I have made recently. Perhaps someone has had similar problems and this can be a solution.
The first point were continuous tracking problems with one pair that were not to solve. With increasing headspeed the tracking became worse and worse and the reason was not to find on the first view. The surface of both wooden blades has looked similar and weight was the same. The sawed ends of the blades have also looked similar at roots and tips. So this was a unsolved mystery until last Wednesday. That day I had the idea that it would not be bad to close all open wood structures at the ends with 5 min Epoxy for IRCHA (because the US fuel is more aggressive in my experience). I started with the pair I could not track. What I suddently saw after adding the glue was this:
and that:
It is obvious now that this inner wood structure is causing a different torsion stiffness. During spooling up the blade with the white tip is faster going upwards than the blade with the blue tip.
So each one who has a similar problem should do this test. The structure of both blades should look equal from angle and direction.
In kits this is of course not to control, so we add now to each kit two pairs of blades with similar weights. Then at least one good pair will be the result. All that have ordered a Heli-Baby and have tracking problems should contact me and inform me about blade weights, they will get a similar new set for making new pair(s).
The second news is the clutch: Latest tests have shown that the Heli-Baby is much better to control in sinking when the clutch is opening a little bit later. I recommend 1.8 mm, delivery is 2.2 mm. Use a round file or mill it a little bit down. Enlarge the inner bore, do not file at the outside.
Finally the canopies in all kits are ready cut and glued now. What I have seen on customers pics has initiated me to this conclusion. The material on the one hand and the difficult positioning of the canopy halfes is not easy. As spare both versions will be continued.
Good luck now and perhaps ... see you on IRCHA 
P.S.(forgotten): This is the modernized version of the Heli-Baby, the "Super-e-Heli-Baby" and now in german/american cooperation. Head (with soft O-rings) and swash are from the Century Swift (spares easy to get), blades are from Ikarus eco8 (also easy), Koehler actro 18-5, 6s/4000 packs for 9 minutes flight time. Has now about 150 flights, very easy to control, good flight stability and if there is any interest the Super-e-Baby will get some brothers soon 
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