Kolb-List Digest Archive

Wed 09/03/14


Total Messages Posted: 7



Today's Message Index:
----------------------
 
     1. 03:25 AM - Re: Kolb-List Digest: 6 Msgs - 09/02/14 (George Bearden)
     2. 05:11 AM - Re: Re: Kolb-List Digest: 6 Msgs - 09/02/14 (Malcolm Brubaker)
     3. 11:29 AM - wanting to see Kolb (joe)
     4. 02:23 PM - Re: Rudder Failure on my Xtra. (KIRBY, DENNIS T GS-13 USAF AFMC AFNWC/ENS)
     5. 05:00 PM - Re: wanting to see Kolb (Rex Rodebush)
     6. 05:09 PM - Re: Re: wanting to see Kolb (Frank Goodnight)
     7. 07:25 PM - See kolb (Frank)
 
 
 


Message 1


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    Time: 03:25:19 AM PST US
    From: "George Bearden" <gab16@sbcglobal.net>
    Subject: RE: Kolb-List Digest: 6 Msgs - 09/02/14
    > Where did all those dunes come from? No sand visible around the shore. Wave action creates sand along oceans and large lakes. Wind action does the same in deserts. Then the wind moves the sand down-wind in drifts. I am guessing that you see little sand along the shore because the wind action is very efficient at moving the sand away. At Pismo beach, central CA, there is a VERY fine sand that gets everywhere, not like regular beach sand. This is sand made smaller by the action of 100,000's of vehicles roaring around on it. Away from vehicle action it isn't so fine. The dunes extend eastward about a 1/2 mile to a mile. I think so much sand is created there because the ocean floor is not steep at all. A very mild grade, you can wade out quite a ways. This gives more area being worked over by the wave action. After a weekend there on motorcycles/quads/4x4s I get sand behind my eyeballs. Only way I have found to get it out is to pull the skin/eye-lids away from my eyeballs and spray the shower in there.


    Message 2


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    Time: 05:11:13 AM PST US
    From: Malcolm Brubaker <brubakermal@yahoo.com>
    Subject: Re: RE: Kolb-List Digest: 6 Msgs - 09/02/14
    I have a Jabiru 2200 w/ Bing carb spewing fuel out of the air filter. I am taking the carb off today and looking it over, what do you think I will find? what should I look out for Malcolm & Jeanne Brubaker Michigan Sport Pilot Repair http://michigansportpilotrepair.com/ LSRM-A, PPC, WS Great Sails - Sailmaker for Ultralight & Light Sport (989)513-3022 ________________________________ From: George Bearden <gab16@sbcglobal.net> Sent: Wednesday, September 3, 2014 6:24 AM Subject: Kolb-List: RE: Kolb-List Digest: 6 Msgs - 09/02/14 > Where did all those dunes come from? No sand visible around the shore. Wave action creates sand along oceans and large lakes. Wind action does the same in deserts. Then the wind moves the sand down-wind in drifts. I am guessing that you see little sand along the shore because the wind action is very efficient at moving the sand away. At Pismo beach, central CA, there is a VERY fine sand that gets everywhere, not like regular beach sand. This is sand made smaller by the action of 100,000's of vehicles roaring around on it. Away from vehicle action it isn't so fine. The dunes extend eastward about a 1/2 mile to a mile. I think so much sand is created there because the ocean floor is not steep at all. A very mild grade, you can wade out quite a ways. This gives more area being worked over by the wave action. After a weekend there on motorcycles/quads/4x4s I get sand behind my eyeballs. Only way I have found to get it out is to pull the skin/eye-lids away from my eyeballs and spray the shower in there.


    Message 3


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    Time: 11:29:47 AM PST US
    Subject: wanting to see Kolb
    From: "joe" <okjoek2000@yahoo.com>
    I live in Broken Arrow, Oklahoma, basically Tulsa. I would like to see a Kolb in person. I am building our final house outside of Locust Grove, Oklahoma and am there most days which is close to the Arkansas border, nearest town to Locust Grove people would probably be familiar with would be Fayetteville, Ar. If anyone lives in either of those areas and wouldn't mind letting me see their Kolb I would really appreciate it. I am hoping to get at least a Sport Pilot license when I finish our house, still need to break that part of it to the wife. Joe Read this topic online here: http://forums.matronics.com/viewtopic.php?p=429934#429934


    Message 4


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    Time: 02:23:08 PM PST US
    From: "KIRBY, DENNIS T GS-13 USAF AFMC AFNWC/ENS" <dennis.kirby.3@us.af.mil>
    Subject: Re: Rudder Failure on my Xtra.
    J.Hauck wrote: << Not rudder failure, but what looks like a rudder crank that failed, not because the weld failed, but the round tube wall stressed cracked over time and failed. I had a similar aileron crank failure on a Ultrastar in 1985. Weld was good but the rotating tube wall stress cracked and failed. First I have heard of this type failure in a rudder crank. >> Kolbers - Hauck is correct: It was the torque tube on the rudder pedal assembly that failed on Brad's Xtra ... not the weld. Failure was likely due to accumulated stress on the part. This Kolb aircraft has 240 hours of time on it. What concerns me is, this was a critical, safety-of-flight component that failed. Good thing this happened on a landing rollout, and not in flight. Why did this steel part fail? Is anybody else who flies the Mark-III Xtra concerned that this same part might fail on YOUR aircraft? No amount of rudder pedal pressure exerted by a person in the cockpit should cause this part to break. Otherwise, the part is not designed strong enough. Rick Neilsen suggested that the extra stress from the pedal-mounted toe brakes may have contributed to the failure. OK, but that is still a Kolb-provided option - not some homebuilder's one-off modification. The part should be built to take that kind of stress. Seems to me that Kolb should be making this part from thicker-walled steel tubing. I hope the Kolb factory doesn't wait until another failure of this kind happens - with a possible horrible aftermath - before they decide to improve the design of that part. Sorry for the rant here, but the somewhat lukewarm response from our Kolb community to this alarming failure has motivated me want to ask these questions. I guess you could say my confidence in the Kolb design is a little bit shaken after seeing this. Should we worry about any of the OTHER welded steel parts that we trust will remain intact to fly our Kolbs safely? Dennis Kirby Mark-III (Classic) Flying it for 12 years Do not archive


    Message 5


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    Time: 05:00:54 PM PST US
    Subject: Re: wanting to see Kolb
    From: "Rex Rodebush" <jrrodebush@gmail.com>
    I have a Kolb Xtra at the Branson West airport. Would be happy to show it to you if you're interested. Rex do not archive Read this topic online here: http://forums.matronics.com/viewtopic.php?p=429942#429942


    Message 6


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    Time: 05:09:16 PM PST US
    Subject: Re: wanting to see Kolb
    From: Frank Goodnight <frank.goodnight@att.net>
    To person that would like to see a Kolb. I live in Fayetteville, Ar. Have a kolb Mk3 classic, would be happy to show it to you. Frank goodnight Fayetteville ,AR ULS powered MK3 Sent from my iPad On Sep 3, 2014, at 7:00 PM, "Rex Rodebush" <jrrodebush@gmail.com> wrote: > > I have a Kolb Xtra at the Branson West airport. Would be happy to show it to you if you're interested. > > Rex > > do not archive > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=429942#429942 > > > > > > > > > >


    Message 7


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    Time: 07:25:58 PM PST US
    Subject: See kolb
    From: Frank <frank.goodnight@att.net>
    Hi Joe, I have a kolb MK3 classic inFayetteville AR. Would be happy to show it to you most any time. Ph 479 236 1121. Frank Goodnight Sent from my iPhone




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