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01-28-2019, 11:06 AM
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Join Date: Jan 2008
Location: Ashland, OR
Posts: 2,561
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Quote:
Originally Posted by rv7charlie
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I'll be darned! Well that is pretty disturbing. It sounds like Mark is going to get good customer service from Sensenich, but with the type of fabrication described in the link it is hard to understand how this type of failure could occur.
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Steve Smith
Aeronautical Engineer
RV-8 N825RV
IO-360 A1A
WW 200RV
"The Magic Carpet"
Hobbs 625
LS6-15/18W sailplane SOLD
bought my old LS6-A back!! 
VAF donation Jan 2020
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01-28-2019, 12:34 PM
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Join Date: Jun 2005
Location: SoCal
Posts: 2,452
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Was the picture removed from the original post? I was able to see it yesterday.
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Axel
RV-4 fastback thread and Pics
VAF 2020 paid VAF 704
The information that I post is just that; information and my own personal experiences. You need to weight out the pros and cons and make up your own mind/decisions. The pictures posted may not show the final stage or configuration. Build at your own risk.
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01-28-2019, 12:38 PM
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Senior Curmudgeon
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Join Date: Sep 2005
Location: Dayton Airpark, NV A34
Posts: 15,408
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Quote:
Originally Posted by AX-O
Was the picture removed from the original post? I was able to see it yesterday.
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Still there for me.
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Mike Starkey
VAF 909
Rv-10, N210LM.
Flying as of 12/4/2010 
Phase 1 done, 2/4/2011
Sold after 240+ wonderful hours of flight.
"Flying the airplane is more important than radioing your plight to a person on the ground incapable of understanding or doing anything about it."
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01-28-2019, 03:05 PM
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Join Date: Sep 2007
Location: Central IL
Posts: 5,514
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Quote:
Originally Posted by Mark Dickens
The crack is 8-7/8" from the hub end of the prop.
Never having conducted a coin test, I thought I'd video doing this and put it up on youtube for anyone to watch and listen to. It's at https://youtu.be/_fzn2H0zJGg. I can't hear any difference between the area that's got the crack and other areas, but perhaps someone with a more experienced ear will hear a difference. Maybe it is just paint? I'll let Sensenich have a final word on that. |
It certainly did not exhibit that dull sound when tapped across the "anomaly". It will be interesting to learn what the manufacturer finds.
BTW- a rotating imbalance would have no effect on blade vibrations, so - - not a factor.
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Bill
RV-7
Lord Kelvin:
“I often say that when you can measure what you are speaking about,
and express it in numbers, you know something about it; but when you
cannot measure it, when you cannot express it in numbers, your knowledge
is of a meager and unsatisfactory kind.”
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01-28-2019, 07:16 PM
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Join Date: Oct 2010
Location: Phoenix, AZ
Posts: 2,818
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Thanks for letting us know. Was there any evidence of impact damage from FOD, or any vibration issues during your flights?
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01-28-2019, 08:59 PM
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Join Date: Sep 2011
Location: WV22
Posts: 849
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Definitely looks like a crack and not a fracture in the paint. Does anyone remember the Florida RV12/Sensenich thread way back? I guess something to remember is; every manufacturer can, and will, produce a defective product.
Kudos to you for sharing.
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RV-4 0320\D3G 160, Whirlwind 200GA 70".
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01-29-2019, 04:38 AM
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Join Date: Apr 2012
Location: Collierville, TN (KFYE)
Posts: 1,433
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Quote:
Originally Posted by RFSchaller
Thanks for letting us know. Was there any evidence of impact damage from FOD, or any vibration issues during your flights?
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No. In fact, it's been very smooth.
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RV-8 #81077 Super Slow Build
Dynon Skyview HDX, Titan IOX-370, Dual P-Mags, AFP FM200A FI, Whirlwind 200RV CS Prop
First Flight 11/20/2016
www.marksrv8.com
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01-29-2019, 10:44 PM
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Join Date: Jul 2018
Location: Naples fl
Posts: 140
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Quote:
Originally Posted by Walt
I personally like post flight inspections myself, you have to get the bugs off anyway so thats a good time to look things over closely while your wiping it down.
That way you also have time to deal with issues you find and are less likely to let things go because the wife is sitting in the airplane waiting on you  |
Instead she'll be in the car honking the horn. Unless you live on a air park. |
01-30-2019, 07:49 AM
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Join Date: Oct 2009
Location: Victoria, BC, Canada
Posts: 3,926
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Quote:
Originally Posted by Tommy123
Instead she'll be in the car honking the horn. Unless you live on a air park.
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That was my thought as well. I find there's more pressure to "let's get going" after the flight than before. Thorough checks before takeoff seem to be helpful in reassuring the passenger that you're making sure it's safe. Time spent after the plane is in the hangar is just seen as faffing about...
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Rob Prior
1996 RV-6 "Tweety" C-FRBP (formerly N196RV)
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01-30-2019, 11:45 AM
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Join Date: Feb 2007
Location: colorado
Posts: 872
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Ramp damage
Quote:
Originally Posted by Infidel
Definitely looks like a crack and not a fracture in the paint. Does anyone remember the Florida RV12/Sensenich thread way back? I guess something to remember is; every manufacturer can, and will, produce a defective product.
Kudos to you for sharing.
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Didnt the Rv12 thing turn out to be ramp damage?
Cm
__________________
RV-4 "Mr. Twister"
Pitts S1S "Mexican Red" sold and missed
Mr. Twister Airshows
Rocky Mountain Renegades
the mission... have fun.
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