Singles and Floats
Hi FB ... great that you fancy igniting the 'old chestnut' debate.
Out of interest, I was recently asked to research engine failure rates and produce a risk assessment for a company who planned to spend extra time in the 'Avoid Curve' ... By the way, I call the condition: The 'Area of Extra Caution,' which I feel is a better reflection of the situation.
It's like pulling hens teeth getting definitive answers for the 250-C20 series shut-down rate, but I was quoted a figure of ... "1 in 100,000 hours due to mechanical malfunction." ... being about your figure.
After 40 years handling rotary types, I've accumulated a whisker under
15,000 hours. IE ... I'll need to live another six lives before I'm due to fall foul of the statistics. Six life times and 85,000 hours chugging along with a hundred weight of useless float gear attached to my bum ... 10 knots knocked off my speed while preventing me practicing full stop, skid on EOLs and all at a cost of a thousand or so quid every other year for maintenance.
I like to turn a buck in this business and I know where my money needs to go!
Dennis K.