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  1. Allen Sutphin


    You guys are definitely good for one's motivation!   As long as there are groups like this, older Avids and 'Foxes' will still be flying off into the sunset. I tip my hat to you!

    3 people like this
  2. MnAvidFlyer


    AVID FLYER A • $11,500 • FLY RIGHT NOW • Avid Flyer A airplane N#990MP has recently had a "Conditional Inspection" completed. Currently flown 4 hours since 9/4/18 inspection. Has a current A/W Certificate, Current W&B, Current Registration and Phase 2 Operating Limitations. Airframe 975TT Engine 229SOH. Times will rise as it is being flown. Also includes up to date airframe and engine logs. Includes maintenance docs on airframe, engine and SB's AD's. Rotax L/C 582 grey head 65HP w/C box electric start. Warp Drive 3 blade Carbon fiber prop Std hub Hyd brk. 8x6 tires. Folding wings like a Kitfox! Flys and performs Great! $11,500  • Contact Brooks Letourneau, Owner - located Farmington, MN USA • Telephone: 612-460-8487 • Posted September 18, 2018 

     

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  3. TJay


    I tried mine toe out at first didn't work.  What started to happen (on pavement) the tire was trying to pull to the outside and that would pull my gear out and compress my springs not cool.  So I set them toe in and that helps hold the gear in the full up right position.  I also figure there is give in all the pipe on my landing gear so being toe in when you start rolling your pushing against the tubing which is really setting the wheels at zero.  Remember I am only border line Genius so do what works best for you. :)

    1 person likes this
  4. Buckchop


    Well i tried to put a two short videos on with those pic but guess it not work, hahahhaaaaa should to figure that out. Mmmmmmmm

    Thanks Jim was an awesome day, and is cramped but to much fun so u forget all about that, then we took it for another short spin a few days later while Leni was still here playin in the dirt with me.  Hahhaaa

    IMG_8084.mp4

  5. NorthIdahoAvidflyer


    John M. I have a 20,000 MFD capacitor on the way. The other day while flying, one of the local instructors told me that all he could hear was a "click" when I tried to transmit. I finally figures out that it was the battery pack I have been using. It's one of the type that you add alkaline batteries to. Once the batteries get so low they don't have enough deep cycle capability to maintain a transmission.

    I have one of the battery packs that has a cord running to a cigarette lighter plug. Ir works great to power the radio but they I have to put up with the whining from the engine. 

    I will take some pictures of my ground and and power buss and post them tonight. I have my 12 volt auxiliary/cigarette plug port connected right to the battery and use them to power my intercom and radio. maybe you or Chris could give me an idea on where to install this noise filter.

     

  6. 1avidflyer


    This just popped up on barnstormers.  To much airplane for me.... but probably a good deal for someone.  No waiting for 6 months or whatever the lead time is.  JImChuk

    KIT FOX SUPER SPORT 7 • $20,000 • AVAILABLE FOR SALE Partially assembled. Wings, tail feathers covered. Fuselage ready to be covered. Idaho. $20,000 obo • Contact Darrel L. Agenbroad, Owner - located Grand View, ID USA • Telephone: 2085985781 . 2088343077 • Posted September 18, 2018

  7. flyboy01


    Definatly don't run the blades you have.  You can't imagine how much that engine will shake if the prop is out of balance.  I hit some slush on a frozen lake one time, and it flew up into the  wood prop. A piece of the trailing edge that was maybe at the most 1/2" wide by a foot or so long and pretty thin broke off.  At a medium idle, it felt like the engine was going to shake off the front of the plane.   It's tempting to want to hear the engine run, but remember, it was running fine before the crash, and should run fine now if it wasn't damaged.  Worry about the rest of the plane for now is my advice.  Here are a couple of pictures of two different  ways to do your rib tail repair that I couldn't post on the Team Kitfox site.  If you do this repair, use the right kind of plywood.  This was for an Avid Flyer, but the Kitfox is very similar. JImChuk

    Photo0653.jpg

    Photo0655.jpg

    Thanks Jim for the pics and advice, I just took the prop off and there is nooo way i'm even thinking of trying it anymore! :o 

  8. flyboy01


    Only thing doing a runout test on the flange tells you if the flange is bent. Its the gear train that gets damaged usually on the rear of the engine with the drive systems. With a gearbox, damage to the engine is usually nil. Just a minor prop strike normally just damages the prop. A sudden stoppage can do major damage to the other parts of the drive train which can run normally for a while up to failure.  Any sudden stoppage SHOULD require a teardown at the least. That's why one should use caution when buying a used 912.  An engine turning 4-5000 rpm's gets stopped suddenly, its not rocket science as to what keyway's get sheared or gear bolts get overstressed including the accessories that are bolted to the rearend.  Bad thing is, teardowns are not cheap and are usually put off till its too late or the engine is passed on to the next buyer.

    Thankfully, The owner/passenger killed the engine before impact so I would be surprised if the engine or crank was damaged, nonetheless I'm still going to check the crank with a dial indicator. 

  9. flyboy01


    I talked to Hal from Zipper Big Bore this morning and he (along with my motorcycle mechanic/Machinist dad) said he runs the 912 without a prop all the time with no damage.  We checked the prop flange for run-out and it was .00005" or half a thousandth out of wobble which is almost nothing. 

     

     

    Unfortunately the right flaperon detached on take-off this May and the airplane was badly damaged

     

     

    Why did the flaperon detach? That could be an useful information for other pilots!

    I'm still investigating but I know there was a Mandatory Service Bulletin on it in the UK. They appear to have de-laminated and then failed, as far as I know this is only one of three times this has happened. The service Bulletin calls for reinforcing the rib tails with aluminum angle. Here's the NTSB report https://app.ntsb.gov/pdfgenerator/ReportGeneratorFile.ashx?EventID=20180503X02040&AKey=1&RType=Prelim&IType=LA

  10. Chris Bolkan


    I think the arguments go something like this:

    Use toe in because it is a more inherently stable geometry less prone to wander, therefore less prone to initiate a yaw generating landing, hence why it is done in automobiles.

    Use to out because if you are yawing, the tire will try and follow the yaw, giving you more time to respond with control input,  rather than tire going the opposite direction underneath you thereby causing a rapid progression into a ground loop.

    On my Magnum I set toe in to zero because I couldn't make up my mind which made the most sense as both arguments have merit. 

     

     

    1 person likes this
  11. lv2plyguitar


    The problem with the U.N. is they think global warming must equal new world order to solve.  If they would just leave us alone the U.S. will continue to pursue clean energy which it is already the leader.  Carbon tax and import tariffs are nothing more than redistributions of our wealth to other countries.

  12. Allen Sutphin


    Only thing doing a runout test on the flange tells you if the flange is bent. Its the gear train that gets damaged usually on the rear of the engine with the drive systems. With a gearbox, damage to the engine is usually nil. Just a minor prop strike normally just damages the prop. A sudden stoppage can do major damage to the other parts of the drive train which can run normally for a while up to failure.  Any sudden stoppage SHOULD require a teardown at the least. That's why one should use caution when buying a used 912.  An engine turning 4-5000 rpm's gets stopped suddenly, its not rocket science as to what keyway's get sheared or gear bolts get overstressed including the accessories that are bolted to the rearend.  Bad thing is, teardowns are not cheap and are usually put off till its too late or the engine is passed on to the next buyer.

  13. Buckchop


    Well friends my BlackFox #0021 flys again!! Thanks to Leni, many many many thanks!!! He took her for a loop aroumd the valley and then took me for a ride the first day, and im definetly hook now!!!! THANKS LENI!!!!

    IMG_8081.mp4

    IMG_8084.mp4

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    2 people like this
  14. 1avidflyer


    The reason for not going with a fixed prop is being able to adjust the prop to where you need it.  The wood prop is great if it's right.  Not so good otherwise.  Did you ever figure out how many of the false ribs you need?  I know I have some of them.  I recently sold a couple of props that would have worked for you but they're gone now.  JImChuk

  15. 1avidflyer


    Definatly don't run the blades you have.  You can't imagine how much that engine will shake if the prop is out of balance.  I hit some slush on a frozen lake one time, and it flew up into the  wood prop. A piece of the trailing edge that was maybe at the most 1/2" wide by a foot or so long and pretty thin broke off.  At a medium idle, it felt like the engine was going to shake off the front of the plane.   It's tempting to want to hear the engine run, but remember, it was running fine before the crash, and should run fine now if it wasn't damaged.  Worry about the rest of the plane for now is my advice.  Here are a couple of pictures of two different  ways to do your rib tail repair that I couldn't post on the Team Kitfox site.  If you do this repair, use the right kind of plywood.  This was for an Avid Flyer, but the Kitfox is very similar. JImChuk

    Photo0653.jpg

    Photo0655.jpg

  16. dholly


    I would not run a damaged prop. Test clubs are short blade wood props made to provide load, inertia and cooling on an engine during a test run or break-in procedure.

    [edit] I remember reading the article above on this plane, have it somewhere. Neat 'provenance', glad to se repair underway.

  17. 1avidflyer


    Most would say toed out.  If it's toed in, the wheel on the outside of the turn where there is more weight is pointed into the swerve which can make it get worse.  If it's towed out, the wheel is trying to drive out of the swerve.  At least that's how I've heard it and it makes sense to me.  JImChuk

    PS  on the big pipe, if you have to bend the axel toward the back, tie a cable come along to the tail wheel spring and pull on the pipe with that.  Lots easier than trying to pull on the pipe by hand.  It does take quite a bit of force to bend the axel.  I've had the pipe in my belly, and holding a rope tied to the tail spring, and it took all I could do to get it to bend at all.  Trouble is with the cable come along, it's easy to go to far.  And put the nut back on the axel before you slide the pipe over it so you don't mess up the threads

  18. flyboy01


    Welcome Nile

    looks like a great project there. How did the landing gear hold up to the accident? I see its the good Grove Gear. Have no idea about running the 912 maybe try to get a hold of Larry with the Mangy Fox he seems to know a bit about them engines and knows alot of guys running 912 engines.

    The landing gear held up admirably, they did bend in a little on the left side though. Any suggestions on straightening those?

    Personally I would not run the engine without a prop.  Additionally you need to do the crank test to make sure that the crank was not bent.  If the engine was not running the easy thing to do is check the runout on the prop flange.  Refer to the mantelpiece manual.  All that you will need is a dial indicator which is available from Harbor Freight.  My guess is that you will find that it is ok but if not the engine will destroy its self. Also I would pull the gearbox and do the runout on the end of the crank just to be safe.

    Thanks for the advice I will definitely try measuring the runout.

    ^ This 

    After a successful run out test, you can always bolt on a test club or any old prop for an engine run. I even know someone who used a pusher prop on his tractor. Obviously, you will need to exercise caution during the run up but it will tell you whether the engine is in good running condition or not and prevent an inadvertent engine damaging overspeed event.

    The IVO prop didn't break off, only cracked two of the blades and pushed them in a bit, could I run that? Also, What's a test club?

     

  19. dholly


    ^ This 

    After a successful run out test, you can always bolt on a test club or any old prop for an engine run. I even know someone who used a pusher prop on his tractor. Obviously, you will need to exercise caution during the run up but it will tell you whether the engine is in good running condition or not and prevent an inadvertent engine damaging overspeed event.