1avidflyer

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  1. 1avidflyer added a post in a topic NR prop bolts concern   

    My NR hubs do use drive lugs.  They are not threaded, but rather have a 5/16"/8mm hole through them.  I think the bolts where the deformation shows were not tightening up correctly or enough.  Even though the torque wrench said they were tight enough.  Might be that the galvanizing (if there is any) was being squeezed off the bolt threads and galling and binding up.   
     
    PS   When I submitted my first post on this topic, I put the pictures in the order I wanted them to be in, and wrote my description accordingly.  Just looked now and they are not in the correct order.   Picture one and three are the 80 HP with about 175 hrs run time, pictures to and four are the 100 HP with about 15 minutes run time.
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  2. 1avidflyer added a topic in Avidfoxflyers General Hangar   

    NR prop bolts concern
    Hi all,  I have about 175 hrs on my NR two blade prop on my Kitfox 4 with 80 HP 912.  I've adjusted the prop a number of times between winter and summer, but never actually took the bolts out.  The other day I put a balance master on it, and got new AN5 bolts for the install.  Here is what I found.  I've always torqued the bolts to correct torque, but a few times it did seem like a couple of them acted weird.  Like not turning as much as I expected at the next torque setting.  I would say that apparently, they weren't tightening up to correct torque, at least some of them.  I'm back to working on my new built Kitfox 4 now, and I took the NR two blade prop off of it, so I could work on the engine and cowl install better.  I had ran this engine/prop about 15 or 20 minutes last summer, before I got side tracked.  Both times I used the bolts that NR supplied with the props.  Last prop I know of that came from them didn't come with bolts.  Maybe I'm not the only one who had an issue.  I like the prop, gives good performance, but if you are running their bolts, you may want to have a look.  First and third pictures are the 80 HP, the number two and four are from the 100 HP 912 with 15 or 20 minutes run time.  JImChuk




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  3. 1avidflyer added a post in a topic NR prop bolts concern   

    The bolts have an 8.8 marking on the heads.  JImChuk
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  4. 1avidflyer added a post in a topic NR prop bolts concern   

    I'll take a look for any head markings on the NR bolts.  I did replace them with AN5-36 bolts, so shouldn't have any issue with bolts going forward.  I'll have to change the clamp bolts out as well.  JImChuk
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  5. 1avidflyer added a topic in Close Call's and dumb stunts   

    Moved to general hangar
    Posted in wrong place
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  6. 1avidflyer added a topic in Avidfoxflyers General Hangar   

    New set of dolly wheels for the skis
    Recently I saw someone had made dolly wheels with two wheels and it looked like a good idea to me.  My single wheel ones sagged to one side and weren't the best.  Made a set of the duel wheel ones and finished them today.  Much better.  Pull the one 1/4" bolt and they come off.  They are a bit wider than needed for these skis, but I may make another set of skis, and they will be a bit wider.  JImChuk   
    PS  not sure how this ended up in the close calls and dumb stunts the first time.  Moved it now and will try to delete the other post.  



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  7. 1avidflyer added a post in a topic When to put skis on   

    I've flown on wheels with 4 or 5" of snow.  Heavy wet snow would be worse than light fluffy stuff of course.  Skinny tires will cut through the snow better than wide ones.  Try for three point full stall landings as well.  Don't wheel land it.
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  8. 1avidflyer added a post in a topic First flight on skis this winter   

    I built those skis myself.  I have a sketch somewhere that I was making and never completely finished.  Some one else was asking about it the other day, and I couldn't find it.  Here is a post I started a few years ago.  JImChuk
    Making a new set of skis - Forum How-to's - AvidFoxFlyers Forums
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  9. 1avidflyer added a post in a topic Avid D Model?   

    The heavy hauler wing has two ribs between the ribs with the long tailed ribs that the flaperon hinges on.  The STOL wing has only one rib between the long tailed ribs.  
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  10. 1avidflyer added a post in a topic 582 stutters on bumpy airstrip   

    The Bing floats shouldn't weigh over 7 grams for the pair.  If they are to heavy, your fuel level will rise in the float bowl.  
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  11. 1avidflyer added a post in a topic Duc propeller   

    I was helping a friend of mine order an NR prop, and I had a hard time getting a response from him, so ended up ordering it from Meglin Propellers and fans for everyone - Home (mozello.com)  He has it on a Kitfox 4 with 912 ULS.   They are the same props as NR sells.  He just got a few flights with it, and now is snowed in so he hasn't really had a chance to test it much.  I'm running a 2 blade NR on my Kitfox 4 with 80 HP 912, and I like it.  Have one on the new Kitfox 4 build as well, but it's not flying yet.  JImChuk
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  12. 1avidflyer added a post in a topic 582 stutters on bumpy airstrip   

    Guess I would check the floats and fuel level in the float bowl,  and also look at all the ignition wires incase one of them has a crack of something and the bump/vibration seperates things for a second.  Just a bit of a guess on both accounts though.  
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  13. 1avidflyer added a post in a topic Avid D Model?   

    Does your C model have the MK IV upgrades I  mentioned earlier              the added gussets, added tubing behind the sear for door hold opening shocks, and the door latches that are about 1/3 of the way back on the bottom of the door,              Could also add baggage compartment, newer style cowl and rounded rudder.  
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  14. 1avidflyer added a post in a topic Avid D Model?   

    Finally got around to measuring my MK  IV wing carry throughs.  They are 7/8" diameter.  Some one was asking me about changing out the smaller ones on a B model.  I wondered if it would be easier to put a smaller tube inside the existing one.  May have to ream out some weld bubbles where the other tubes weld into the carry through, but wouldn't think that would be that hard with a long drill bit.  I would drill out the wing pin tubes with drill bits one size bigger than the last till there was nearly nothing left of it.  Get the last of it with a dremmel maybe.  Worse case, if you wreck it, you can then add a larger tube instead.  Any thoughts or comments why this is not an option?  JImChuk
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  15. 1avidflyer added a topic in For Sale and wanted, you got it, I want it   

    Want to buy: 3/4" Rotax prop spacer
    Hi all,  looking for a prop spacer, perhaps a 1" one would work as well.  PM me.  Thanks,  JimChuk
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  16. 1avidflyer added a post in a topic First flight on skis this winter   

    You will be glad that you took the time to go for a visit when you do.  You know the story about all work and no play.  
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  17. 1avidflyer added a post in a topic Avid D Model?   

    I don't think so.  Measure yours, and I'll then measure the MK IV fuselage I have.  And while you are at it, measure the top and bottom tubes in the seat truss.  I know the MK IV used thicker tubes than earlier models, but not sure if the C did as well.
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  18. 1avidflyer added a topic in Avid fox flyers pics and vids   

    First flight on skis this winter
    Well we have had a very unusual winter up here in northern Mn, very mild, and not much snow.  We finally got enough for me to put the skis on the Kitfox 4 and I got to fly today.  It was around 10 above F, so climb performance was really good.  The airport said DA was -1400.  Flew up around the lakes north of me and landed on one where some friends were ice fishing.  It was my first ski landing this year, in about 7" of soft snow, and was like landing on feathers.  Sweet.   Had to dive bomb a deer that was crossing my strip when I came in to land, wonder if he is still running....  he sure put it in high gear when I went right over him doing 100 mph plus and full throttle.  Only negative side of the flight was I thought I had my gopro running, but all I got was 4 pictures when I thought I was starting videos.  Never happens like that when there was nothing exciting on the video.  Anyway, a good day.  Don't put those planes away in the winter, it's the best time to fly.  JImChuk



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  19. 1avidflyer added a post in a topic Avid D Model?   

    According to Steve Winder the MK IV serial numbers start at about 1000.  If you don't have the added gussets, added tubing behind the sear for door hold opening shocks, and the door latches that are about 1/3 of the way back on the bottom of the door, It's not a MK IV  model.  I think also, the earlier models have the front of the vertical stabilizer off set to the side, and the MK IV model is centered.    There was a lot of competition between Kitfox and Avid back then, and being as how the Kitfox 4 had come out about that time, maybe that's why the last Avid got the MK IV designation.  Interesting to note, the serial numbers I've seen for MK IVs usually end in a D.  For instance,   1111D   You don't see the letter added in earlier model serial numbers that I'm aware of.  JImChuk
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  20. 1avidflyer added a post in a topic Parting out Kitfox 2   

    Do you mean you need one of the Kitfox 2 ribs with the long tail?  JImChuk
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  21. 1avidflyer added a post in a topic Gas’s springs for door closures   

    I bought some a few years ago, and it worked ok for what I was doing with it.  Non structural parts though.  I can't say if it's good or bad other than it did what I needed it to do.  JImChuk
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  22. 1avidflyer added a post in a topic Need Kitfox 4 912 rotax firewall pictures   

    This was a fairly old thread.  But it shows why the forums are so much better than facebook.  An old thread with it's information can be pulled up real easily with a quick search.  As I understand it, those lugs get cut off with no problem.  I had the one of the old style starters on my new Kitfox build and the motor mount is further forward, so I didn't have a issue when I used the old type starter.  Here are pictures of my firewall on the rebuilt Kitfox.  In the one with the engine mounted, you can see the starter and how it fits with the depression in the firewall.  Especially if you zoom in on the picture.  After I was done, I thought that I may have been able to hammer out the depression on the firewall, and not add a second piece.  It would have been nicer if it worked, but stood a chance of ruining the whole firewall if it didn't.  JImChuk



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  23. 1avidflyer added a post in a topic Gas’s springs for door closures   

    Wicks has some  for way less.  Thicker wall though.  Look at the 3/8" and 7/16".  $.50 a foot for some of it.  JImChuk
    4130 Chromoly Round Tubing (wicksaircraft.com)
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  24. 1avidflyer added a post in a topic KitFox 5 Down   

    I thought the same thing Leni.  If he got knocked out with the prop blade, that would have been all she wrote.  But at the same time, the blade doesn't look like it hit anything very solid either.  Guess they will sort it out.  I don't think there is much worry with the NR props and 912 Rotaxes at least.  I flew behind mine today and all was good.  JImChuk
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  25. 1avidflyer added a post in a topic Gas’s springs for door closures   

    I've bought these ones several times for various airplanes.  JImChuk  Suspa C16-10788 Pair Of Gas Prop Lift Support 12.2" Ext. Length Topper Shocks | eBay
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