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Fatal RV-7 NZ

Old 5th Jan 2018, 10:50
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Fatal RV-7 NZ

Wing Loss Possible In RV Crash

A Van’s RV-7 that crashed on New Year’s day in Northland New Zealand, killing both occupants, has caught the attention of the RV community because of the possibility of structural failure. If the investigation confirms the witness accounts, it will be the second suspected fatal in-flight breakup of an RV-7 this year. A similar aircraft crashed in Arizona in June and local reports suggest that plane came apart. The New Zealand builder/pilot Dean Voelkerling was an experienced and respected EMS helicopter pilot and was well known in the local aviation community.

Local media reported eyewitness of a wing “spiraling” down separate from the stricken aircraft which crashed into a field. While it is common for early eyewitness accounts to be inaccurate, video and still pictures released from the scene also appear to show the absence of the aircraft’s right wing. This tragedy will surely be watched closely by enthusiasts and authorities alike as the investigation unfolds, especially as it comes on the heels of a fatal accident of the same RV-7 model this past June in Arizona, which also presented early indications of an in-flight structural failure. More information will follow as the investigation continues.
https://www.avweb.com/eletter/archiv...t=email#230135
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Old 5th Jan 2018, 19:41
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Wings falling off seems to be a common thing at the moment in NZ. A motor glider lost one last week but miraculously the occupants walked away...

Miracle escape for pair after glider crash - NZ Herald
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Old 5th Jan 2018, 20:37
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Do some digging on that glider crash and see what you find...
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Old 6th Jan 2018, 04:15
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Do some digging on that glider crash and see what you find
Why not post your digging and save the rest of us the bother.
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Old 6th Jan 2018, 05:53
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Originally Posted by Fark'n'ell View Post
Why not post your digging and save the rest of us the bother.
I could do that but it would take the discussion around and around in circles, not unlike a Ferris Wheel.
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Old 6th Jan 2018, 07:46
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Originally Posted by StickWithTheTruth View Post
I could do that but it would take the discussion around and around in circles, not unlike a Ferris Wheel.
So, I guess you’re saying the connection between the aircraft that hit the Ferris wheel at Old Bar and the glider that crashed in New Zealand is the builder, G. Morgan. Only thing is, the Ferris wheel aircraft crashed due to pilot error and the pilot was not Mr Morgan. So what’s your point?
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Old 6th Jan 2018, 10:26
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Seems you've joined some of the dots.
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Old 7th Jan 2018, 00:58
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In the reports that I have seen it says the pilot was the builder, nothing to do with Mr Morgan, so I dont see any dots to join.
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Old 7th Jan 2018, 05:33
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Originally Posted by Arnold E View Post
In the reports that I have seen it says the pilot was the builder, nothing to do with Mr Morgan, so I dont see any dots to join.
I read that the pilot was Mr Morgan. He was born in NZ, lives in NZ and is the same age as the pilot of this crashed glider. I now have a BORG your honour :-)

Last edited by StickWithTheTruth; 7th Jan 2018 at 06:12.
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Old 7th Jan 2018, 06:27
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We cant be talking about the same crash (RV7)
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Old 7th Jan 2018, 07:16
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Originally Posted by Arnold E View Post
We cant be talking about the same crash (RV7)
Ok, I digressed to the glider. My sincere apologies for any patronizing tones.
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Old 10th Jan 2018, 05:13
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Any talk or rumours on the RV7 crash, I am interested because I have recently finished an RV7.
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Old 10th Jan 2018, 09:02
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I'm also keen to know if they had been doing aeros or were at the time.
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Old 10th Jan 2018, 22:54
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Originally Posted by Arnold E View Post
Any talk or rumours on the RV7 crash, I am interested because I have recently finished an RV7.
Too early for any certainty but going by other RV7 inflight breakup reports on the USA NTSB website the wreckage distribution would suggest that the tailplane, rudder or elevators, is first to fail. Wing overload would be likely as a result.
I'd suggest if you did not balance your elevators AFTER painting as Van's suggest that a good time to balance them would be today.
As for "Stickwiththe truths" wishing to know were they doing aero's, I find it hard to believe any pilot with the experience of this one would pull 6 or 7g (4.5 X 1.5 ultimate) and break a wing off. They could however exceed VNE and get flutter and destroy the tailplane.
If as has been suggested, this plane was covered after test flying, in vinyl cladding instead of paint, loose vinyl on or near a control surface could conceivably lead to flutter.
I have known of planes that were painted after test flying not to have had the elevators separated and balanced after painting. Paint on the elevators leads to considerable out of balance.
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Old 11th Jan 2018, 06:58
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Yeah no problem with elevator balance and I think your idea that the problem may have started with the elevator could be worth thinking about. I wonder if the horizontal stab SB had been done. hope there is some info out soon.
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Old 11th Jan 2018, 10:54
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Originally Posted by RV6JOY View Post
As for "Stickwiththe truths" wishing to know were they doing aero's, I find it hard to believe any pilot with the experience of this one would pull 6 or 7g (4.5 X 1.5 ultimate) and break a wing off.
I guess I was more wondering if they were 10 years old or more perhaps and have been thrashed daily doing aeros. More likely to lose an ancillary item or control issue rather than breaking the wing off an RV in controlled flight, I agree with that.
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Old 11th Jan 2018, 17:42
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If you google ZK-DVS you'll find some blog posts (yes I know) which indicate the paint (vinyl?) was added after the test flying was complete. I can't post the links here it seems.

Last edited by NZFlyingKiwi; 11th Jan 2018 at 17:44. Reason: Removed links.
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Old 11th Jan 2018, 19:25
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I'm surprised to hear that it may
Vinyl as it doesn't look like it.

https://goo.gl/images/w55G9H

It also looks like the test flying may have been performed in undercoat which is very common for RV's or in fact with zero paint.

https://goo.gl/images/PSy4gg
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