Originally Posted by
500 Fan
Boeing flew the composite High Performance Rotor Blade back in 2013 with the intention of fitting it to the Block II MELB. It must not be working out as planned, as it sounds like they will look to other composite 500 blades available, like Van Horn and HTC.
Boeing's history of blade design failures is fairly consistent.
CH-47F
https://www.defensenews.com/digital-...es-in-testing/
AH-64
https://www.defensenews.com/land/201...cal-to-safety/
SB-1
https://www.defensenews.com/digital-...ng-challenges/
XV-15 (Boeing designed and built ATB composite blade that failed in flight)
https://www.nasa.gov/wp-content/uplo...04/sp-4517.pdf (p.81)