Hi
Out of the struggle between a machine customers desire and a machine engineers dont like..
I am interested in having a real feedback about the R22 blade design and possible problems.
I am not eng so, excuse my little ignorance, but, roughly, i would try some remarks, to rise come counter arguments from real teatched people here :
i find this blade dangerously designed..
the blade grip is made of metal while the rest is composites, maybe i am wrong but isnt there a real stress riser and a break in finite element ?
Why wasnt this blade full composites with a metal struts inside linked to a all-metal blade grip?
I see there is a brutal section change in the blade grip, typical stresse riser, why not a thicker blade root for progressive bending and effort spreading ?
About the blade pockets craks : is it delamination ?
And a basical question, what are these problems due to ?
a quick design-for-market process ? a lack of innovation or an exess of it ?
Thank you for every valuable reply.
Victor