Matronics Email Lists :: View topic

Matronics Email Lists
Web Forum Interface to the Matronics Email Lists

Get Email Distribution Too! FAQ Search Memberlist Usergroups Register

Profile Log in to check your private messages Log in

Max Gross

Matronics Email Lists Forum Index -> Kolb-List

View previous topic :: View next topic

Author Message

Watkinsdw

Joined: 15 Mar 2009
Posts: 138
Location: Deerfield Beach, FL

Posted: Sun Mar 22, 2009 6:18 am Post subject: Max Gross

Can anyone explain to me how the maximum gross weight is set for a MIII? I'm told it's set by the builder, not Kolb. 

 Thanks,

 Dave

  [quote][b]

- The Matronics Kolb-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Kolb-List

NeilsenRM(at)comcast.net
Guest

Posted: Sun Mar 22, 2009 7:42 am Post subject: Max Gross

Dave 

  

 The builder does set the maximum gross weight along  with a bunch of other stuff. The same regulations are there for original  designs. The Kolb MKIII has a factory recommended max gross weight of  1000 lbs. set by a structural engineer. It was based on the design limits  of the standard airframe with some leeway for less than quality  workmanship.  At least one of our group has increased the limit by  making a bunch of structural changes and has proven its strength. If you do  quality work and built the plane exactly like John H built his it would appear  the limit can be safely increased to 1200 lbs. If your not a  structural engineer any deviations from John's proven modifications could  put the airframe at risk at this higher limit. John is the test pilot of his  design modifications and continues to be.

  

 Another way of answering the question would be to  say you as the builder can set the limit at 2,000 lbs and are killed in a crash  you will not be cited by the FAA for violating experimental  regulations.

  

 As always worth what you paid for it.

  

 Rick Neilsen

 Redrive VW powered MKIIIC

  

    

 [quote]   ---

- The Matronics Kolb-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Kolb-List

Watkinsdw

Joined: 15 Mar 2009
Posts: 138
Location: Deerfield Beach, FL

Posted: Sun Mar 22, 2009 8:52 am Post subject: Re: Max Gross

Thanks, Rick.

I'm in the process of buying a 2001 MKIII powered by a 912s. The builder, who is described as a very meticulous craftsman, has set the max gross at 1050#. I can live with that, but since I weigh 190, and my partner 170, we'll have to carry less than full fuel in the 20 gal. tank. The empty weight is 594#,  probably in part due to the 912s, and the BRS. 



I'd heard about John's increase, and wondered how much flexibility I had, especially since I fantasize about installing floats, down the road.



Are you there, John, and do you have any suggestions?

- The Matronics Kolb-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Kolb-List

aslsa.rng(at)gmail.com
Guest

Posted: Sun Mar 22, 2009 9:07 am Post subject: Max Gross

Richard is right, you will set the max gross weight on the forms you will file to get your experimental certificate. You may set it at whatever you wish, however, to get your aircraft out of phase 1 testing you must demonstrate and document the aircraft's performance at this weight. 



Rick Girard

do not archive

  



On Sun, Mar 22, 2009 at 9:18 AM, david watkins <david.watkins0(at)gmail.com (david.watkins0(at)gmail.com)> wrote:Can anyone explain to me how the maximum gross weight is set for a MIII? I'm told it's set by the builder, not Kolb.    	  Quote: 	
		   Thanks,

 Dave

  ========== get="_blank">http://www.matronics.com/Navigator?Kolb-List tp://forums.matronics.com _blank">http://www.matronics.com/contribution  [/b] 	
[b]

- The Matronics Kolb-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Kolb-List

John Hauck

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

Posted: Sun Mar 22, 2009 9:20 am Post subject: Max Gross

 	  Quote: 	
		   


	


 	  Quote: 	
		   I'd heard about John's increase, and wondered how much flexibility I had, 

 especially since I fantasize about installing floats, down the road.



 Are you there, John, and do you have any suggestions?


	




I can't tell you what to do, but I, personally, would not hesitate to fly 

this particular mkIII at more than the recommended 1,000 lbs gross weight.



As far as floats are concerned, I have no ideas and can not comment on them.



There are no major improvements on the fuselage of my mkIII from a standard 

mkIII.  Most of the changes Brother Jim made to my fuselage at the Kolb 

Factory, were automatically incorporated in standard mkIII fuselages, little 

things most folks don't know about.  I guess the biggest change I made was 

reinforcing the noses of all main ribs and the tails of the four outboard 

main ribs, additional bracing on the bowtip and increased lateral bracing on 

the leading edge of the wing.



Redesigning the main gear did nothing for increasing gross weight 

capability.



Flight characteristics and capability don't change much with Homer's big 

straight wings.  They love to haul stuff!



The main reason I upgraded the wings was based primarily on the type flying 

I knew my mkIII would be subjected to, and personal preference of the way I 

like things to be in my airplane.



If anyone chooses to fly a Kolb aircraft over the recommended maximum gross 

weight, it is their decision to do so, not mine.  I don't recommend other 

folks fly their Kolbs the way I fly mine.



john h

mkIII

- The Matronics Kolb-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Kolb-List

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

Watkinsdw

Joined: 15 Mar 2009
Posts: 138
Location: Deerfield Beach, FL

Posted: Sun Mar 22, 2009 10:14 am Post subject: Re: Max Gross

Thanks, John, 



Your comments are accepted in the spirit in which they were offered-"information", not "recommendation".



I appreciate your steering me to the Kolb in question.

I've been very impressed with the integrity of the the builder, and look forward to flying the plane. 



Finally, I look forward to learning more from you as time goes by.



Dave

- The Matronics Kolb-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Kolb-List

Display posts from previous:

	Matronics Email Lists Forum Index -> Kolb-List	All times are GMT - 8 Hours
Page 1 of 1

Jump to:

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum