Originally Posted by
gulliBell
I'm not sure how many Bell helicopters breakup in flight with an experienced pilot/instructor at the controls. Probably zero would be my guess. The same can't be said for Robinson helicopters.
gulliBell: if you look at post #51 above, you'll see that in the data set studied, I identified in the "undetermined" category 3 Bell fatal accidents and 2 Robinson fatal accidents. Whether those are in-flight break-ups I can't say. There were also 2 Bell flights with mechanical difficulties (engine, transmission, etc.) that resulted in fatalities, but none like that for Robinsons.