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Warp Drive Prop Failure?

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John Hauck

Joined: 09 Jan 2006
Posts: 4639
Location: Titus, Alabama (hauck's holler)

Posted: Mon Feb 21, 2011 9:26 am Post subject: Warp Drive Prop Failure?

Kolbers:



There was no Warp Drive Prop Blade failure on Ellery Batchelder's MKIII. 

Ellery was told his prop was a WD when he bought it from a gentleman in 

Florida.  The after accident photos indicate the prop blade that failed was 

built up from some type honeycomb material.



Talked with Daryl at WD a few minutes ago.  WD has always built solid carbon 

fiber blades.  They have never manufactured a honeycomb blade.



I will continue to fly with confidence, my Warp Drive Prop, as I have for 

many years and many hours.



The NTSB has been in contact with Travis at Kolb Aircraft and Daryl at WD. 

The blades are not WD.



john h

mkIII

Titus, Alabama

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_________________
John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama

h20maule(at)hotmail.com
Guest

Posted: Mon Feb 21, 2011 9:44 am Post subject: Warp Drive Prop Failure?

This confirms my original thoughts. There is absolutely no way a warp would delaminate. I've seen so much stuff go through those props and they always take it with ease. 



Thanks,

Daniel Myers

Cell: 407 920 7700



On Feb 21, 2011, at 12:23 PM, "John Hauck" <jhauck(at)elmore.rr.com> wrote:



 	  Quote: 	
		   

 

 Kolbers:

 

 There was no Warp Drive Prop Blade failure on Ellery Batchelder's MKIII. 

 Ellery was told his prop was a WD when he bought it from a gentleman in 

 Florida.  The after accident photos indicate the prop blade that failed was 

 built up from some type honeycomb material.

 

 Talked with Daryl at WD a few minutes ago.  WD has always built solid carbon 

 fiber blades.  They have never manufactured a honeycomb blade.

 

 I will continue to fly with confidence, my Warp Drive Prop, as I have for 

 many years and many hours.

 

 The NTSB has been in contact with Travis at Kolb Aircraft and Daryl at WD. 

 The blades are not WD.

 

 john h

 mkIII

 Titus, Alabama

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captainron1(at)cox.net
Guest

Posted: Mon Feb 21, 2011 11:54 am Post subject: Warp Drive Prop Failure?

Thanks for the update John. I WD is back on my menu for props.

Now I would like to know what make was the failed prop.



Ron (at) KFHU



==========



---- John Hauck <jhauck(at)elmore.rr.com> wrote: 



=============




Kolbers:



There was no Warp Drive Prop Blade failure on Ellery Batchelder's MKIII. 

Ellery was told his prop was a WD when he bought it from a gentleman in 

Florida.  The after accident photos indicate the prop blade that failed was 

built up from some type honeycomb material.



Talked with Daryl at WD a few minutes ago.  WD has always built solid carbon 

fiber blades.  They have never manufactured a honeycomb blade.



I will continue to fly with confidence, my Warp Drive Prop, as I have for 

many years and many hours.



The NTSB has been in contact with Travis at Kolb Aircraft and Daryl at WD. 

The blades are not WD.



john h

mkIII

Titus, Alabama 



--

kugelair.com

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Richard Pike

Joined: 09 Jan 2006
Posts: 1671
Location: Blountville, Tennessee

Posted: Mon Feb 21, 2011 3:19 pm Post subject: Re: Warp Drive Prop Failure?

I hate to be the contrarian here - sorry Daryl - but back in the early 90's I went through 4 different Warp Drive blades while trying to get the landing gear and brakes sorted out on my Anglin J-6, and all of those broken blades looked just like the pictures of Ellery's broken blade. Tan foam core, thicker leading edge, and carbon fiber top and bottom. And since Ellery's broken prop dates back to the 90's ...



Let the flames begin.



Richard Pike

MKIII N420P (420ldPoops)

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John Hauck

Joined: 09 Jan 2006
Posts: 4639
Location: Titus, Alabama (hauck's holler)

Posted: Mon Feb 21, 2011 3:41 pm Post subject: Warp Drive Prop Failure?

I hate to be the contrarian here - sorry Daryl - but back in the early 90's 

I went through 4 different Warp Drive blades while trying to get the landing 

gear and brakes sorted out on my Anglin J-6, and all of those broken blades 

looked just like the pictures of Ellery's broken blade. Tan foam core, 

thicker leading edge, and carbon fiber top and bottom. And since Ellery's 

broken prop dates back to the 90's ...



Let the flames begin.



Richard Pike



Thanks for the info, Richard P.



Will you provide the approximate dates?



With your permission I will forward your email to WD.



john h

mkIII

Titus, Alabama

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_________________
John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama

Richard Pike

Joined: 09 Jan 2006
Posts: 1671
Location: Blountville, Tennessee

Posted: Mon Feb 21, 2011 5:01 pm Post subject: Re: Warp Drive Prop Failure?

 	  John Hauck wrote: 	
		  

Thanks for the info, Richard P.



Will you provide the approximate dates?



With your permission I will forward your email to WD.



john h

mkIII

Titus, Alabama 	




Certainly, the logbook says the first flight with the Warp was July 28, 1990, so the prop was very likely purchased sometime in July, 1990, replacing the original wood prop. Then on August 14, 1990, in the Remarks column it simply says "Very bad landing." That is when I dropped in in from about 5' up at my second landing behind the house, the shock struts failed under load (extension) and it ended up on it's belly, breaking at least one blade, maybe both, but not sure.



The next flight was Sept 21, 1990, so I would have purchased at least one blade during the time period between mid August & mid September. Then on September 24, the left brake locked up during a touch and go at TRI, and I did a snap ground loop at about 35 knots, folding the gear under, breaking both prop blades, doing extensive damage to the fuselage, and it was grounded until May 21 of 91. (I managed to convince the Tower Chief it was minor damage, and it was only reported as an "incident.") So I would have purchased two more blades between October of 90 and May of 91, but since I managed not to destroy those blades, I have no idea how they were constructed.  



Anyway, the ones I destroyed looked like Ellery's



Thanks,

Richard Pike

MKIII N420P (420ldPoops)

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ceengland(at)bellsouth.ne
Guest

Posted: Mon Feb 21, 2011 5:35 pm Post subject: Warp Drive Prop Failure?

I'd tell you that there are absolutely no absolutes, but there might be 

one out there somewhere.



Around 1993, an acquaintance  was flying a WD on an O-320 powered 

homebuilt called a Skeeter in Oklahoma & discovered that the prop was 

making 'whiskers' of carbon fiber on the blades near the roots. The 

rather brutal power pulses of the Lyc were shattering the strands of 

carbon. If he'd continued flying it, it could have ended in disaster. 

Shortly after he returned the blades to WD, they discontinued selling 

props for direct drive 4 cyl a/c engines. Long time ago & things may 

have changed by now, but I asked them a couple of years after the 

incident & they still weren't selling for Lycs at the time.



Sooo...hard to find those absolutes.



Charlie



On 2/21/2011 11:40 AM, Daniel Myers wrote:

 	  Quote: 	
		   



 This confirms my original thoughts. There is absolutely no way a warp would delaminate. I've seen so much stuff go through those props and they always take it with ease.



 Thanks,

 Daniel Myers

 Cell: 407 920 7700



 On Feb 21, 2011, at 12:23 PM, "John Hauck"<jhauck(at)elmore.rr.com>  wrote:



> 

>

> Kolbers:

>

> There was no Warp Drive Prop Blade failure on Ellery Batchelder's MKIII.

> Ellery was told his prop was a WD when he bought it from a gentleman in

> Florida.  The after accident photos indicate the prop blade that failed was

> built up from some type honeycomb material.

>

> Talked with Daryl at WD a few minutes ago.  WD has always built solid carbon

> fiber blades.  They have never manufactured a honeycomb blade.

>

> I will continue to fly with confidence, my Warp Drive Prop, as I have for

> many years and many hours.

>

> The NTSB has been in contact with Travis at Kolb Aircraft and Daryl at WD.

> The blades are not WD.

>

> john h

> mkIII

> Titus, Alabama

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elleryweld(at)aol.com
Guest

Posted: Mon Feb 21, 2011 5:45 pm Post subject: Warp Drive Prop Failure?

I am not going to argue about the blades I have, I think the NTSB will get to the bottom of this without my input

 

     Ellery Batchelder Jr.

 

 

 

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