Ed Cesnalis Posted April 22, 2013 Report Share Posted April 22, 2013 Jeremy replaced my sprag clutch yesterday and it went fast and smoothly until it was time to replace the warp drive prop. First Jeremy noticed wear on my spinner bulkhead from the prop blades which lead to seeing that all 3 prop blades had a groove cut into them at the root where there is an aluminum sleeves over the carbon fiber. The spinner bulkhead has 3 semi-circular cutouts to provide openings for the prop blades but my former mechanic did not replace the propeller as he had removed it, instead he rotated the prop so that the 3 semi-circular cutouts did not align with the propeller and the blades were in contact with the flange on the spinner bulkhead and vibration turned that flange into a cutting edge that was cutting into each of my prop blades at the root. Link to comment Share on other sites More sharing options...
Roger Lee Posted April 22, 2013 Report Share Posted April 22, 2013 Hi Ed, I can see from the picture the spinner left a mark, but can't tell depth or anything else. Is the blade usable or are you replacing the prop? If you need a Warp Drive I have one here. Let me know if I can help. Link to comment Share on other sites More sharing options...
Ed Cesnalis Posted April 22, 2013 Author Report Share Posted April 22, 2013 Roger, Its hard to tell if the cuts are into the carbon fiber but even if they are not we have a nice crack started in the aluminum at the the root of the blades ( weak point already ). Jeremy pointed out that other prop designs have a very large diameter at the roof and warp is already very small. I'm now willing to fly with a damaged prop, failure could be catastrophic. What is the condition and price on your prop? I don't need a hub. Thanks Link to comment Share on other sites More sharing options...
WmInce Posted April 22, 2013 Report Share Posted April 22, 2013 . . . "I'm now willing to fly with a damaged prop, failure could be catastrophic." . . . Was that a typo? Hope so. Link to comment Share on other sites More sharing options...
Ed Cesnalis Posted April 22, 2013 Author Report Share Posted April 22, 2013 yes typo Link to comment Share on other sites More sharing options...
Roger Lee Posted April 22, 2013 Report Share Posted April 22, 2013 Hi Ed, Email me your phone number and I'll give you a call. It's in perfect condition and new leading edge tape. One super tiny mark on the trailing edge, but otherwise not a mark. Cheap, around the cost of a single new blade. Link to comment Share on other sites More sharing options...
WmInce Posted April 22, 2013 Report Share Posted April 22, 2013 yes typo Whew! Glad to hear that! Link to comment Share on other sites More sharing options...
Ed Cesnalis Posted April 30, 2013 Author Report Share Posted April 30, 2013 Roger's prop looks very good on my plane. My old nickel leading edges were a visual distraction. Roger mentioned that I should have it dynamically balanced. Who does that in the far west? Jeremy said that there is a shop at Reid Hillview but they won't do composite spinners. Link to comment Share on other sites More sharing options...
Jim Posted April 30, 2013 Report Share Posted April 30, 2013 I've been told that Ron Wright in Lincoln can do it. PM'ed his phone number to you. Let me know if you're coming up this way any time soon. Link to comment Share on other sites More sharing options...
207WF Posted May 21, 2013 Report Share Posted May 21, 2013 I might be interested in a dynamic balance, too. Has anyone done this, and what were the results? WF Link to comment Share on other sites More sharing options...
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