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Tail replace/repair

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natosmith

Joined: 23 Jun 2011
Posts: 1
Location: Oshkosh, WI

Posted: Fri Jun 24, 2011 8:47 am Post subject: Tail replace/repair

I'm helping someone repair a Firestar and a Twinstar. He has plans from 1987 that show a different tail assembly than what I've seen in some of the Kolb videos. Would someone out there be willing to take a few pictures of the vertical tail installation with the ring? His is an older style that doesn't have the ring, but it needs to be replaced. I'm not sure how to attach the new style assembly, or even what parts I need to order.



Thanks,



Nate

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Thom Riddle

Joined: 10 Jan 2006
Posts: 1597
Location: Buffalo, NY, USA (9G0)

Posted: Fri Jun 24, 2011 9:43 am Post subject: Re: Tail replace/repair

Nate,



Another approach would be for you to take some photos of what you have and send them to Travis at Kolb and then call him and ask him what you need, which will come from him in any case, unless you have a junker you can scavenge the parts from.

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_________________
Thom Riddle
Buffalo, NY (9G0)

Don't worry about old age... it doesn't last very long.
- Anonymous

WhiskeyVictor36(at)aol.co
Guest

Posted: Mon Jun 27, 2011 7:35 pm Post subject: Tail replace/repair

Nate,

  

 I have the early model and my buddy has the later model Kolb tail weldment  assembly.  I will try to relate what I see as the difference.

  

 The early model Kolbs used a tail weldment that consisted of  a vertical tube and two horizontal tubes.  The horizontal tubes are  positioned inside the boom tube against the top and bottom and riveted to  the boom tube lengthwise.

  

 The later version uses the ring, which is inserted  into the boom tube and riveted around the circumference.  

  

 This change was made to eliminate the step of removing the pin that  connects the elevator horn to the elevator controller mechanism, in order to  fold the tail, on the early style.  The newer  ring type has a pivoting joint that allows  folding, without having to remove a pin.

  

 The elevators for the ring type use a different type  of horn and I'm not sure if the early elevators could  be retrofitted.

  

 There is also a difference in the design of the horizontal  stabilator, at the inboard aft end.  I think this was to give  clearance for the pivoting joint.  The early model has the corner  tubes butted together at a right angle, while the ring type has  a gap there.  I don't think they would be interchangeable.  If you  were to install the new ring type on an early model, you may  have to build new, or modify the existing, horizontal  stabilators.

  

 Hope this helps a little bit,

  

  Bill  Varnes

Original Kolb FireStar

Audubon NJ

Do Not  Archive



  

  

  In a message dated 6/24/2011 12:49:52 P.M. Eastern Daylight Time,  natosmith79(at)gmail.com writes:

  	  Quote: 	
		  the    vertical tail installation with the ring? His is an older style that doesn't    have the ring     

	


 [quote][b]

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