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1985 Firestar5 Rib Wing/Stress

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John Hauck

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

Posted: Wed Mar 01, 2006 10:24 am Post subject: 1985 Firestar5 Rib Wing/Stress

Another alternative is to put angled aluminum from the leading edge 

to the spar front and back to streingthen the 5 ribs that are already 

there.

|

| Michael A. Bigelow



That's what I would do if I had a 5 rib wing, reinforce with 1/2 and 

3/4 X 1/16 aluminum angle.



There is not a thing wrong with the standard 5 rib wing, if flown 

within the design envelope.  Push it and break it.  I know, I know, 

someone will tell me how they fly the sh*t out of their 5 rib wing 

Kolb and have had no problem, YET.................



Stress is cumulative.  Everytime you stress it, subtract a little from 

the whole number 1.0+ you started with.  Eventually you will ask it to 

do something and it will tell you there is nothing left to do it with. 

That is when it will fail.



As far as adding ribs to a Kolb wing,................if you have ever 

built one you will know that the only rib you will change without much 

problem is the outboard rib.



john h

MKIII

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

nellypup_29(at)yahoo.com
Guest

Posted: Wed Mar 01, 2006 3:03 pm Post subject: 1985 Firestar5 Rib Wing/Stress

I have to apologize, I didn't make things very clear.

There are 5 full ribs in the firestar wing and 3 false

ribs between each full rib. The false ribs go from the

spar to the leading edge of the wing. I don't really

see a problem with that. The five full ribs go to the

trailing edge and each is attached with only two 1/8"

pop rivets. None of the false ribs go to the trailing

edge and this is where the ailerons are attached.

There is 26.5" between each full rib and the rear tube

is smaller than the leading edge. There are 10 times

as many rivets holding the ailerons on as there is

holding the trailing edge to the ribs. The wings are

completely striped and I have to repair some of the

ribs anyway. They were damaged in the wreck.



Thanks Mike

Do Not Archive



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



 	  Quote: 	
		   

 <jhauck(at)elmore.rr.com>

 

    Another alternative is to put angled aluminum

 from the leading edge 

 to the spar front and back to streingthen the 5 ribs

 that are already 

 there.

 |

 | Michael A. Bigelow

 

 That's what I would do if I had a 5 rib wing,

 reinforce with 1/2 and 

 3/4 X 1/16 aluminum angle.

 

 There is not a thing wrong with the standard 5 rib

 wing, if flown 

 within the design envelope.  Push it and break it. 

 I know, I know, 

 someone will tell me how they fly the sh*t out of

 their 5 rib wing 

 Kolb and have had no problem, YET.................

 

 Stress is cumulative.  Everytime you stress it,

 subtract a little from 

 the whole number 1.0+ you started with.  Eventually

 you will ask it to 

 do something and it will tell you there is nothing

 left to do it with. 

 That is when it will fail.

 

 As far as adding ribs to a Kolb

 wing,................if you have ever 

 built one you will know that the only rib you will

 change without much 

 problem is the outboard rib.

 

 john h

 MKIII 

 

 

 

 

 



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