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  #541  
Old 02-15-2014, 05:26 PM
Kevin Horton's Avatar
Kevin Horton Kevin Horton is offline
 
Join Date: Jan 2005
Location: Ottawa, Canada
Posts: 2,357
Default No Cracks

RV-8 C-GNHK Ser # 80427
280 hours
No notches, no cracks
IO-360-A1B6 with 3 blade MT prop
Used almost exclusively on paved runways, with very occasional grass strips.
Occasional aerobatics.
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Kevin Horton
RV-8
Moses Lake, WA, USA
http://www.kilohotel.com/rv8/
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  #542  
Old 02-16-2014, 10:56 AM
gerrychuck gerrychuck is offline
 
Join Date: Jun 2011
Location: Moose Jaw, SK, Canada
Posts: 550
Default Another inspection

Inspected hangar partner's aircraft today:

RV8 C-GLZR Bald Eagle
Completed 2007
300 hours
O-360
Sensenich FP
Moderate positive G acro
Mostly pavement
No notches
No cracks
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Gerry Julian
Moose Jaw Saskatchewan
RV6A "Second Wind" C-GERZ (born N242UL)
O-360 A1A, Sensenich FP prop

Those who think any system is foolproof greatly underestimate the ingenuity of fools
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  #543  
Old 02-16-2014, 01:39 PM
dromuald's Avatar
dromuald dromuald is offline
 
Join Date: Aug 2012
Location: Newnan, GA
Posts: 39
Default no cracks

RV-8 655CL
450 TT
IO-360A1B6
Hartzell C/S

Go upside down or a loop almost every flight
Std acro up to 4 G
Mostly paved but 5% grass
almost always use tow bar

no notches
no cracks - stab or elevator
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  #544  
Old 02-16-2014, 02:50 PM
JimWoo50 JimWoo50 is offline
 
Join Date: Oct 2005
Location: Chicago sw suburbs
Posts: 395
Default No cracks both s/b's 9855J

RV-6 kit no. 22300
147 hrs
Very limited grass rwy ops lots of bounces on pavement though.
O-320 fp Sensenich
No notches
No cracks anywhere.
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Jim Woolard C56
N9855J RV-6 Donated 2020
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  #545  
Old 02-16-2014, 09:15 PM
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DanH DanH is offline
 
Join Date: Oct 2005
Location: 08A
Posts: 9,500
Default

I earlier asked what methods folks were using to remove the paint for inspection.

Mine is PPG epoxy primer, base, and DCU clear, which is pretty tough. What worked was rolling a strip of rag about 1" wide into a roll about the diameter of a cigarette butt. Soaked it with MEK, stuffed it into the corner, put a piece of aluminum tape over it, and came back in 15~20 minutes. Worked well; the trapped vapor and long soak time made a nice soft patch of paint which came right off with just a little rubbing. MEK isn't going to cause a corrosion issue later.

For the next one I'll try a cotton ball.



I had looked last week with paint in place and found nothing. With the paint removed I spotted what looked like a crack to the naked eye. However, it is worth grabbing a camera...a high-resolution photo says no:



RV-8
325 hrs
390, Hartzell CS
acro, grass
no notches
no cracks
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Dan Horton
RV-8 SS
Barrett IO-390

Last edited by DanH : 02-16-2014 at 09:18 PM.
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  #546  
Old 02-17-2014, 07:19 AM
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bret bret is offline
 
Join Date: Feb 2010
Location: Gardnerville Nv.
Posts: 2,828
Default

Thanks Dan, I did not think that MEK would eat through clear! I best keep that stuff away from my paint job.
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7A Slider, EFII Angle 360, CS, SJ.
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  #547  
Old 02-17-2014, 10:59 AM
estoro estoro is offline
 
Join Date: May 2005
Posts: 10
Default RV8 stab crack

Latest Vans answers.
As of this morning 17 Feb, send time for the -8 kit is "one week". Also talked to a tech rep; "There is no additional fix in the making". 'Can not see advantage to using blind rivets'.
I used 2 hrs to dismantle the tail. Vans tech rep says 8-10hrs to make mod. I guess 4 hours to reinstall.

RV-8, #620
550 hrs over 13 years
Gentlemans aerobatics
Hard surface, 190HP C.S. prop
One small crack upper right corner, no reliefs.

Cheers,
Ed


.
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  #548  
Old 02-17-2014, 12:44 PM
LeMar LeMar is offline
 
Join Date: Dec 2008
Location: Sioux Falls, SD
Posts: 86
Default RV-7

RV-7
O-360
Hartzell CS
Finished in 2003
800 hours
No cracks
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  #549  
Old 02-17-2014, 07:13 PM
Lote Lote is offline
 
Join Date: Jan 2011
Location: Dublin, OH
Posts: 78
Default

Completed second SB inspection on elevator spar and no cracks found. IMHO, for aluminum to crack it has to flex, and for these parts to flex, either the elevator hinge line must not be dead straight, or some heavy loads are moving the stabilizer tips up and down, or both things in combination are happening. For those who found cracks in either spar, I wonder if viewing down their hinge holes they are perfectly concentric.

LeRoy Johnston, Ohio

RV-6A
O-360, 180HP
Hartzell
SN 25764, first flew 2006
765 Hrs TT
No acro
99 percent on pavement
No cracks, no notch on first SB inspection
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  #550  
Old 02-18-2014, 01:38 PM
avpro56 avpro56 is offline
 
Join Date: Jan 2005
Location: Northport, NY
Posts: 63
Smile Inspection Results

RV-80094
705 Hours TT
No relief holes
No cracks in HS or Elevator Spars
50% grass /pavement occasional aerobatics
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Jon Ross
RV-8 (sold)
ATP, A&P IA, EAA Technical Counselor & AB DAR
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