PPRuNe Forums - View Single Post - AS332L2 Ditching off Shetland: 23rd August 2013
Old 30th Jan 2014, 12:21
  #2438 (permalink)  
Join Date: Feb 2009
Location: Aberdeen
Posts: 104
Forgive a former fixed wing maritime flier inquiring...

Much is made of the supposed enhanced safety through twin engined helicopter operations offshore. But if all the power from both/either engines go through a much 'weaker link' in the chain - a single gear box and rotor head - then is the latter negating the benefits of the former?

How many North Sea twins do come home on one engine?

And if the answer is 'very few', is the added gearbox complexity of feeding power from two engines (to mitigate those 'very few') through one MGB and rotorhead introducing more potentuial catastrophic failure points?

Is there a difference in frequency of MGB failures between single and multi engined helicopters?
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