Mmmm ...
I'm sure John is again correct .... but I understand that the weak point design of the Starter Gen drive shaft was to allow it to fracture if the generator bearings were to seize and thus not drag the N1 section speed down (at least that is what I was told on various engineering courses I attended) ... these s/g's were of course as installed on Hu500s B206 & anything else with the Allison even before the light twins were developed .. and as RVDT pointed out the electrical systems were somewhat different to the more modern machines with respect to controlling overcurrent control ...
(John ... the 'Bills Taxi' days are history... I deleted those memories as my hard drive become too full and I need the space for more important junk !!
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