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Mark II Xtra update

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icrashrc

Joined: 16 Mar 2006
Posts: 247
Location: Mishawaka, In

Posted: Thu Jan 11, 2007 7:34 pm Post subject: Mark II Xtra update

Just letting everyone know were back to work on the plane. I've uploaded some new pictures to 

http://www.picturetrail.com/gallery/view?icrashrc

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Scott

www.ill-EagleAviation.com

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John Hauck

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

Posted: Thu Jan 11, 2007 7:47 pm Post subject: Mark II Xtra update

| Just letting everyone know were back to work on the plane. I've 

uploaded some new pictures to

 | --------

| Scott

Scott:



Looks like you are making progress.



I especially like the photo of your new vehicle that probably arrived 

in Kit 2.  



john h

mkIII



DO NOT ARCHIVE

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

icrashrc

Joined: 16 Mar 2006
Posts: 247
Location: Mishawaka, In

Posted: Sun Jan 14, 2007 3:29 am Post subject: Re: Mark II Xtra update

Maybe Kolb should go in the go-cart business too?



Did you notice the extra corner gussets on the elevators and rudder? I figured i would build mine in instead of adding them later like you had to do.

MVC-507F.jpg

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Scott

www.ill-EagleAviation.com

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John Hauck

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

Posted: Sun Jan 14, 2007 6:35 am Post subject: Mark II Xtra update

| Did you notice the extra corner gussets on the elevators and 

rudder? I figured i would build mine in instead of adding them later 

like you had to do.  

|

| --------

| Scott



Hi Scott:



Glad you picked up on the corner gussets.  Don't forget the rudder 

too.



Has Kolb incorporated them into the plans?  I think not, but have not 

seen the new mkIIIx plans.



john h

mkIII

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

icrashrc

Joined: 16 Mar 2006
Posts: 247
Location: Mishawaka, In

Posted: Mon Jan 15, 2007 3:58 am Post subject: Re: Mark II Xtra update

 	  John Hauck wrote: 	
		  | 

Hi Scott:



Glad you picked up on the corner gussets.  Don't forget the rudder 

too.



Has Kolb incorporated them into the plans?  I think not, but have not 

seen the new mkIIIx plans.



john h

mkIII 	




We put gussets on the rudder as well. I just didn't post a seperate picture of them. 

And no. There are no corner gussets on the plans. I  noticed them on your plane (at) Sun-n-Fun last year but never got around to asking you about them. Looking at the design it made sense that the single rivet would see a lot of rotational stress so we just went ahead and added them. In the attached pic you can see the corner gussets as well as the slight changes to the cross bracing to help transmit rotational forces to the rudder TE

Rudder.jpg

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Scott

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David Lucas

Joined: 10 Jan 2006
Posts: 79
Location: Europe. based Amsterdam NL

Posted: Mon Jan 15, 2007 4:18 am Post subject: Re: Mark II Xtra update

Just curious,     Has anyone ever used welded joints instead of riveting in putting a Kolb together ? Considering that, for example, moutain bikes these days are all welded aluminium frame and they take an increadable beating, that method of construction could probably be applied to a Kolb. Less simplicity of construction of course, which is a downside but perhaps a stronger joint and it definately looks better.   Like I say, just curious. Anybody care to comment ?

David.

John Hauck

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

Posted: Mon Jan 15, 2007 6:19 am Post subject: Mark II Xtra update

| We put gussets on the rudder as well.  

| --------

| Scott

 



Morning Scott:



Rudder looks good, clean and strong.



john h

mkIII

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

Steven Green

Joined: 05 Feb 2006
Posts: 118

Posted: Mon Jan 15, 2007 4:26 pm Post subject: Mark II Xtra update

David,



Most of the aluminum tubing used in the Kolbs is 6061-T6.  The T6 means it

is heat treated which would be compromised by welding.  It would also take a

heck of a jig to weld it up in to prevent warping.  As you stated welding

would really add a lot of time to the project.  The strength of the Kolb

structure is very adequate.



Steven

Hope my spelling is ok

I don't have a spell checker.



---

_________________
Steven Green

Paul Petty

Joined: 11 Jan 2006
Posts: 226
Location: Mississippi

Posted: Tue Jan 16, 2007 8:02 am Post subject: Re: Mark II Xtra update

Scott,

When did you buy kit 1? Your project and workman ship looks great! I also added the gussets to the rudder and elevator like johns plane. There are some real good mods for the wings as well.

_________________
Paul Petty
Kolbra #12
Ms Dixie
912 UL 70" warp

Paul Petty

Joined: 11 Jan 2006
Posts: 226
Location: Mississippi

Posted: Tue Jan 16, 2007 8:17 am Post subject: Re: Mark II Xtra update

Scott,

One other thing i noticed. Flaps. Does the Mark 3 X come with flaps now or did you add them. If added what are your plans for deploying them i.e. mech or eletric.

_________________
Paul Petty
Kolbra #12
Ms Dixie
912 UL 70" warp

icrashrc

Joined: 16 Mar 2006
Posts: 247
Location: Mishawaka, In

Posted: Wed Jan 17, 2007 3:14 am Post subject: Re: Mark II Xtra update

Paul,

I purchased Kit 1 At the Kolb homecoming in 2005. Started work on it around 12/1/05. Worked until the end of March on it. I picked up Kit 2 At the Homecoming 2006 and just started working on the plane around Christmas.



Thanks for the compliments. My friend Paul and I both tend to follow some of Burt Rutans wisdom, "your best is ALMOST good enough".



I ordered the Mark III X with the 'Classic' style wing. Kolb will build them either way for you. If you order the flapped wing they mod the cage for you. The flaps and linkage are the same as the Classic.

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Scott

www.ill-EagleAviation.com

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APilot(at)webtv.net
Guest

Posted: Wed Jan 17, 2007 5:06 am Post subject: Mark II Xtra update

What is the difference between the Mark III Extra wing and the Classic

wing?

icrashrc

Joined: 16 Mar 2006
Posts: 247
Location: Mishawaka, In

Posted: Thu Jan 18, 2007 12:10 am Post subject: Re: Mark II Xtra update

The Xtra wing uses flaperons. 

The Classic wing uses seperate flaps and ailerons.



 	  APilot(at)webtv.net wrote: 	
		  What is the difference between the Mark III Extra wing and the Classic

wing?

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Scott

www.ill-EagleAviation.com

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APilot(at)webtv.net
Guest

Posted: Thu Jan 18, 2007 1:18 am Post subject: Mark II Xtra update

Thanks for the info.

dhkey(at)msn.com
Guest

Posted: Thu Jan 18, 2007 4:34 am Post subject: Mark II Xtra update

Some xtra' s have flaps. Most of the xtra lights have flaperons and the xtra 

heavies have flaps.

 	  Quote: 	
		  From: "icrashrc" <icrashrc(at)aol.com>

Reply-To: kolb-list(at)matronics.com

To: kolb-list(at)matronics.com

Subject: Re: Mark II Xtra update

Date: Thu, 18 Jan 2007 00:10:28 -0800

The Xtra wing uses flaperons.

The Classic wing uses seperate flaps and ailerons.

APilot(at)webtv.net wrote:

 > What is the difference between the Mark III Extra wing and the Classic

 > wing?

--------

Scott

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