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  1. EDMO added a post in a topic Spar Inserts   

    Here is the page from the Avid Magnum 1700gw wing insert that the builder makes for the .083 wall spars. 
    Not as impressive as the fancy Kitfox inserts, but guess it works OK.  I don't know if Airdale was the same.
    Note that it is shown downside-up, and is only .090 thick at the top with no flange.
    If I was designing it, I would have used a narrow I-beam, Z-bar, Lightening holes in a 3/8" thick bar, or angles riveted to top and bottom of the vertical, and probably would have made it longer - but I am not an engineer.
    EdMO

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  2. 1avidflyer added a post in a topic Spar Inserts   

    TJay, I would think that if a person was determined to use an aluminum I beam for the spar stiffener, they could cut the top and bottom of the I beam on a table saw to more or less round it off. Carbide tipped blade will cut aluminum quite well, although you want to wear a good face shield as chips will be flying around. Might want to make several passes at slightly different angels to get the rounded effect. On the other hand, what you have now is most likely just fine. Jim Chuk
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  3. IFMT added a post in a topic Spar Inserts   

    Just aircraft was able to supply the insert for 0.83 wall spar. 
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  4. jjbaker added a post in a topic KITFOX SERVICE BULLETINS   

    Here's a better way to do it.
     
    Example
    #38-Rudder Pedal Reinforcements - MANDATORY 5/15/1994 S5 Vixens SN: DBT001, ECV001-ECV009, FCV008, GCV010, HCV011-HCV012, ICV013-ICV018, JCV019-JCV022, KCV024, LCV023, LCV025-LCV026, ADV027-ADV030
     
    #44-Rotax 912 Ignition Leads 8/25/1995 All Rotax 912 Powered aircraft with Ignition Units Mounted to Engines
     
    #21-Flaperon Hinge Bearings - MANDATORY 8/19/1992 M1, M2, M3
     
    #21A-Flaperon Hinge Bearings - MANDATORY 8/28/1992 All Models (Prior to this Bulletin)
     
    #22-Matco Brake Caliper 8/28/1992 All Models
     
    #23-Engine Mount Bolts 9/23/92 Rotax 912 Engines, Serial #4005177 to Engines prior to this Bulletin
     
    #24-Landing Gear Weldment 10/8/1992 Aircraft Shipped between 9/3/92 & 10/1/92
     
    #25-Model IV Style Flaperons 11/3/1992 M4 Wings (Short Flaperons)
     
    #26-Lift Strut Attach Bracket 11/11/1992 Aircraft Manufactured between 09/01/92 & 10/16/92
     
    #27-Capstrip Bulletin 12/8/1992 Aircraft Manufactured between 08/92 an 11/92
     
    Source: Kitfocaircraft.com - http://kitfoxaircraft.com/FAQ-Tech.htm
     
    Disclaimer: Always check for new SB & SL's with the manufacturer. This list may or may not be complete. Avidfoxflyers.com provides this listing for technical reference and information only and assumes no responsibility. liability or implied liability for the correctness, completeness or applicability of information on display. 
     
    Randomly selected off the site, copied, pasted with a link leading directly to the source. Now you are creating an index for people to go through, but editorial freedom still rests with the original publisher of the information. They can update to hearts desire and all you have to do is go through a few times a year to check for new stuff. 
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  5. jjbaker added a post in a topic KITFOX SERVICE BULLETINS   

    Okay, I am officially confused. Just went to the KF Site, clicked on the latest Mandatory SB (#56).
    Select All --> Copy --> Open Office New Document --> Paste and push the Convert To PDF button.
     
    Save as --> Give it a name --> Ding!
    Your soup is done! Time required ~ 1 Minute.
    On some of them you'd have to do some formatting and editing.
     
    SB#56.pdf
     
    It is perfectly fine for anyone to do this for their own records and maintenance books.
    It is not so fine for someone to do this intending to republish or disseminate the information on a website.
     
    Like I just did....   Fortunately mine is for a free replacement of your aquarium tank pump.
     
    At the very least you'll run the risk of giving people access to something that may be subject to editorial changes.
    For example, a SB is updated and a newer version is on file with Kitfoxaircraft.com - but your member downloads and C/W what you have.
     
    Then the front falls off. The survivors and their attorneys now say:
     
    "Uhhh. Look! Just two days ago he was happy as a clam because he found the SB for his Jesus Nut."
     
    From what I understand about the law, he or she who gets dinged for this in a wrongful death lawsuit has a choice:
     
    Would you like you ass grilled (1) Very Crispy BBQ or (2) Very Crispy BBQ Honeynut.
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  6. EDMO added a topic in Hangar Talk   

    HAPPY BIRTHDAY IN WHITEHORSE - IFMT
    Darn, I have long forgotten how many years I stayed 49 - Guess until I turned 59, but that was years ago.  
    Happy Birthday - Hope you have a good party.
    EdMO
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  7. EDMO added a post in a topic KITFOX SERVICE BULLETINS   

    JJ,
         That Kitfox site wont let you download or print the SBs from the index.   I have the info for an old site somewhere in my files, and it would let you copy all the Kitfox SBs.   I will look for it in the future and try to list it on here.  I may need help to do that.
    Thanks,
    EdMO
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  8. Bandit added a post in a topic Spar Inserts   

    I wouldn't make that big of a deal out of the inserts. I have the wood ones and they have worked great. Where do you stop trying to make things stronger on a already proven design?
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  9. EDMO added a post in a topic Spar Inserts   

    TJay,
         I don't know where Jim got the .083 spars and insert, but the original KF1 had the extruded integral web .065 spars and no inserts.
    I don't know when they quit making that type of spars, but my KF2 also had them - I don't know about the KF3, but when the KF4 came out, it had inserts to be put into the spars.
    EdMO
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  10. TJay added a post in a topic Spar Inserts   

    how Many kitfox 1 airplanes With the Z spar insert you think are flying today, I would guess 10 maybe. Thats my thinking on the newer stiffeners also I will be flying at 900 to 1000 lbs all the time i'm sure. Then again I do have the heavy spars and short wings. That all helps too. I talked to the guy with all the tooling today he says it would be really hard to turn down a 5 foot ibeam and keep it from bending in the lath.
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  11. EDMO added a post in a topic Spar Inserts   

    Speed is just a relative term - I have flown at an indicated 100 mph, and the cars below me on a two-lane highway with a 55 mph speed limit were going faster than me.
    EdMO
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  12. 1avidflyer added a post in a topic Spar Inserts   

    TJay, I don't think you will have any trouble seeing 70 MPH. Probably will do that at 5000 RPM or just a bit more. Jim Chuk
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  13. jjbaker added a post in a topic KITFOX SERVICE BULLETINS   

    Ed, copying that is quite a bit of work, converting it to downloadable PDF's is a bit more and then still someone has to keep up with new additions. Any changes or cancellations and you're looking at a legal liability, too. Why not place a link to that page somewhere prominent on this site or develop a "Technical Resources" thread that can have all the links to pertinent sites in it?
     
    Just an idea, I recently did this for my Soaring & Glider Resource Directory and peeps are clicking their mouses to death...
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  14. LSaupe added a post in a topic Intercom Recoomendations   

    All:
     
    Chris has a Sigtronics SPO-42 unit.  Any thoughts on if this would be compatible or any other feedback?  I have an ICOM PTT switch, which plugs directly into the hand held radio harness (Icom A-14).  Would that still work fine (connected directly to the radio harness) or would I need to adapt through the intercom or split to inyercom and radio harness?
     
    The ICOM PTT and Sigtronics PTT connectors are of different diameter (hopefully there is a converter somewhere).
     
    Larry
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  15. EDMO added a post in a topic got plane home   

    Here is a drawing - This is all I can find right now - Don't know why I didn't put the SB number on it.
    I guess there are several ways to reinforce the pedal stands and torque tubes...
    EdMO

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  16. RobS added a post in a topic got plane home   

    Not sure if this is what you're looking for, but more details (and a picture) can be found in this post on the TK site:

    http://www.teamkitfox.com/Forums/showthread.php?t=5160&highlight=Torque+tube+fix&page=2
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  17. EDMO added a post in a topic got plane home   

    MarkD,
          I worried for a while about highjacked threads - but seems like most threads have stated or finished the subject, and anywhere they are taken is usually connected to the original plane or builder, or is at least, informative on a related subject.
          Leni has let this site be extremely flexible, and no one has ever been busted for changing the subject.
    IMO,  If the readers on the site don't read all the posts, then they may miss out on something interesting or important.
    "Don't touch that dial - Stay Tuned to this Station!"     
    (That used to be on the radio, before TV - but that was before most on here were born.)
    EdMO
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  18. EDMO added a post in a topic Spar Inserts   

    TJay,
         I'm not trying to tell you how to build your bird - You got to go with whatever you are satisfied with - I like your idea of turning a light I-beam instead of paying such a high price for Kitfox inserts, and having to turn them anyway - But again, that is a choice to make.
         On one Kitfox I helped build, the inserts fit loosely, and we took gobs of 9460 on a long pvc pipe with cloth on the end of it, and swabbed the glue on the inside of the spar at about the location of the insert, and slid the insert in, using a slit in a pvc pipe to keep the insert vertical.
    Good Building,
    EdMO
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  19. TJay added a post in a topic Spar Inserts   

    I do have the .083 spars with the kitfox I beam inserts I would just turn them down a few thousands, shouldn't hurt them, Hey Jim I am going to stick with the 12' wings and am keeping the under camber rib profile, should perform well. I would love to see 70mph on the ASI I'm not holding my breath on that one though ha.
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  20. EDMO added a post in a topic Spar Inserts   

    Jim,
          Does TJay have the .083 wall spars?   If so, they are plenty strong even with thin inserts.
    TJay,
          I have to agree with Jim - You could do more harm than good by drilling out rivets, but that's your choice to make.  Kitfox inserts wont fit .083 wall spars anyway, I don't think....My book says you may have to squeeze the sides of their .065 spars to slide the inserts in, since they fit so tight.
    EdMO
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  21. 1avidflyer added a post in a topic Spar Inserts   

    TJay, as I remember, you have thicker walled spars.  Also, if your wings are shorter, they would be stronger than if they were longer.  Not sure what length you ended up going with.  I guess what I'm getting at is your wings maybe are pretty strong already.   Avid was able to demonstrate  5.7 Gs of load on their stol wing with the .065 wall spars with no damage to the wings.  Their gross weight was 911 lbs.  X 5.7 equals 5193.  If one used a gross weight of 1150, and divided that into 5193, you are at 4.51 Gs.  That's pretty strong.  I would worry about drilling out your stiffeners and maybe scratching the inside of the spars in trying to slide them out.  That could cause cracks to start from the scratches.  Just some things to consider..... Jim Chuk

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  22. ChrisBolkan added a post in a topic Intercom Recoomendations   

    Larry,

    Sent you a PM with some photos.

    Chris
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  23. EDMO added a post in a topic KITFOX ELEVATOR AD MODIFICATION   

    A list of KITFOX SERVICE BULLETINS/LETTERS can be found on the Kitfox site and scrolling down the left side to TECHNICAL FAQs.  But, unlike the old list, I cant get the SBs to print out - only title shows - and, I don't think that all of the old list is there.
          Somewhere in my files is an old site where you could find the SB list, and pull them up and print them out - I will look for this site in the future and post it if I find it.  I may need some help to be able to post it.
    EDMO
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  24. EDMO added a topic in Avidfoxflyers General Hangar   

    KITFOX SERVICE BULLETINS
    OK - I FOUND THE KITFOX SBs and Letters - Go to Kitfox site and scroll down the list at left to TECHNICAL FAQs, and you will see a list of all of them.   Unfortunately, I cant get the complete SB to show, like the old list let you do.   Someone smart could copy the important ones to post.
    EdMO
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  25. MarkD added a post in a topic got plane home   

    Dang, I think I might be responsible for hijacking a topic thread.....sorry I guess it just happened.
    ( That's what happens when you are bored at work and have access to the web.)
     
    MarkD
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