RAF Rotorblades

I'm understanding that RAF is not letting people upgrade the hub bar any longer. Just a trade in on your old one. for about $600
 
Yes, I did upgrade mine for about $300 and about another $100 shipping and fees in early 2005. I feel there should be no compromise when it comes to your rotor.
 
Looks to me, according to PN 21, that the OLD hub bar (before the middle of 1996), is good for 150 hours of flight time. This hub bar has a 7/8" center thickness.

The newer hub bars and rotor blades (made after middle of 1996), with a 1" thick center thickness, according to PN #33, are to be changed at 500 hours until further notice. It also looks like the winglets were later further upgraded with better machining in PN 39, 15 Dec 2004, with the new bolt.

As I understand from the PNs that I have, the only hubs that are LESS than a 500 hour replacement are the ones manufactured prior to mid-1996, and the PN says only that the center section (not the winglets) are to be changed out.

Here are the notices that I have:
16 (2 May 95, Rotor Blade Strikes)
19 (1 Nov 95, Improper or No Support/Outdoor Storage)
21 (10 Oct 96, Hub Bar)
31 (19 Dec 00, Rotor Blade Storage and Transportation)
33 (18 Jun 01, 500 Hr Time Change Requirement)
35 (18 Dec 02, Rotor Blade Replacement Program)
37 (15 Dec 03, Components Requiring Insp after Incident)
39 (15 Dec 04, Hub Bar Winglets/AN12 Bolt)

I'd be glad to share if you'd like the files.

Ben
 
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