Yamma-Fox

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Everything posted by Yamma-Fox



  1. Yamma-Fox added a post in a topic Tow Bar Drawings for Kitfox   

    And Jim, you need a bigger truck (or at least taller hitch) to do that tow correctly LOL!

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  2. Yamma-Fox added a topic in Files and Forms   

    Tow Bar Drawings for Kitfox
    This appears to be the towbar that you attach a hitch receiver onto and tow the plane behind a vehicle using the aircraft's wheels as "trailer wheels"
    Credit and thanks to a TeamKitFox member (and a pic from Jim C) for posting over there:



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  3. Yamma-Fox added a post in a topic Need help   

    If you held the flywheel from turning with your hand, there is no feasible way you could twist the crank!
    Sit Issac Newton would have to agree: The force of the wrench being coutered equally and oppositely by the flywheel itself... no other force being applied (oppositely) anywhere down the crank.
    That you countered the force with human hand power makes this not even worth discussing (even if you happen to be the reigning champion world's strongest man ).  But even if you put a huge torque down on the bolt and held back ONLY on the flywheel by mechanical means you could never hurt anything but the bolt, threads, or flywheel.  Thats why snowmo clutches are removed by holding back via the clutch when you load the puller. Torque ranges on those go up to 110 ft-lbs to tighten and alot more when "popping" the clutch off.
    I have used the rope method, but one could argue that SOME force is being applied through the crank (and to the piston dome) in doing that.   Not enough IMO to ever hurt anything though.
    Sounds lile a twitchy buyer that might be trying to corner you into a "steal of a deal".
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  4. Yamma-Fox added a post in a topic Yamaha RX-1 , Apex , and Rotax C Box shop / service manual and carb cleaning procedure   

    Downloads still working for me.
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  5. Yamma-Fox added a post in a topic how to convert a boat trailer to haul a KF   

    I think this aughta do? 
    http://www.teamkitfox.com/Forums/showthread.php?t=4990
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  6. Yamma-Fox added a post in a topic c box remove   

    Make sure you keep track of the shims and their location as you pull apart.  
    I posted the c box service manual over in files:

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  7. Yamma-Fox added a post in a topic c box remove   

    .... and here's a puller even a pilot can afford  :
    https://m.ebay.com/itm/13pc-Harmonic-Balance-Puller-Shaft-Steering-Wheel-Crank-Crankshaft-Damper-puller/351390362389?epid=1024798444&hash=item51d07f6b15:g:3LMAAOSwBahVRuXK
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  8. Yamma-Fox added a post in a topic The life of a Pilot   

    Damn funny!
    But after 17 yrs in that line of work,  and observing the "hot shot" types I've worked with, I'll have to second TJay's version as the even funnier reality!
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  9. Yamma-Fox added a post in a topic want to install HKS700E int Kitfox IV   

    Build it!   From your posts Mark it is clear that you have the background to get it right!
    I was intimidated by the idea of building a mount for my yamaha, but with some help, am glad I tackled it.  Learned alot, had fun doing it, and found it wasn't so bad to take on.
    It is just so hard to shop out a one off custom job without bringing the plane and engine to the fabricator.
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  10. Yamma-Fox added a post in a topic Yamaha RX1 Engines   

    Hey jared.  I know I talked to teal about this a week or so ago.
    I think he was hoping to have it as a working prototype in 2018.  And I know he said that he will not send any out until it has undergone rigorous testing.
    If you decide to go rx-1, teal said he had some adapters on the shelf, and there is a c box on ebay af that just popped up.
    But maybe you already had the c box?
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  11. Yamma-Fox added a post in a topic Yamaha RX1 Engines   

    Ok.  Better tone.  That's good Greg.
    But that whole analysis  (including chart) is something you derived on your own.  It is all put together by you!  
    Sole source data and conclusions from someone who clearly has a prejudice in the matter....  troubling to me.
    I have an engineering degree to Greg.  In this case I am far more comfortable relying on empirical data.
    The empirical data is clear:  Approx 30 Skytrax conversions flying with a cbox (say 3000 hrs or so?) with one bearing failure.
    Your conclusions would have some merit if you tested a C box to faulure and verified / modified them accordingly, but those estimates in your last post just plainly do not make sense.
     
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  12. Yamma-Fox added a post in a topic Yamaha RX1 Engines   

    Thanks Greg.
    I gotta give you credit for posting up and correcting errors in your earlier data.
    And those estimates above at least do agree better with what we are seeing in the field, which makes them more credible.

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  13. Yamma-Fox added a post in a topic Replacing windshield   

    That new windshield looks damn good man!  Makes me want to do it too.  Thanks everyone for the tips.
    But help me here... this is all new to me, difference between Lexan and Makrolon.  Which is best and why?
    Thanks!
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  14. Yamma-Fox added a post in a topic Chemtrails at night   

    LMAO!

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  15. Yamma-Fox added a post in a topic Chemtrails at night   

    Here's proof boys...

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  16. Yamma-Fox added a topic in For Sale and wanted, you got it, I want it   

    Rotax C Gearbox - Wanted to buy
    Trying ro help a new member here find a Rotax c box.
    Anyone have one shelved away?
    Thanks 
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    • 481 views


  17. Yamma-Fox added a post in a topic Yamaha RX1 Engines   

    His (Greg Mills) data is concocted from picking and choosing numbers and estimates while sitting behind a computer.
    He has never extensively ran a c box with a Yamaha.  Never put these paper estimates of his to a test.
    The same is true for a line of sprag clutches he recently came out with.  He came up with TBO estimates with the same engineering slant (this time slanting towards his product) of thousands of hours TBO and a limetime guarantee from Mohawk Aero.
    Real world testing on those sprag clutches showed: 2 tested and entirely destroyed within 2 hours each.  Copro's testimomy in the post above describes this.  Greg sent these clutches out (to people I know and talked with at the time) UNTESTED. The worst part of that sprag clutch debacle is that he didn't even notify other customers that the failures had occured.  I actually had to contact one of them (overseas customer), who planned to fly the clutch soon, and I advised him to stay on the ground because there were problems.
    So what were dealing with in these engineering calculations is plain and simple:
     "Garbage in..... garbage out"
    Like Akflyer says... proof is in the pudding (real world empirical test data).
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  18. Yamma-Fox added a post in a topic Yamaha RX1 Engines   

    I don't like it either.  Just trying to counter some bad info.  Somebody had to say something.
    But I'll sign off on this one now.
    I've said my piece.
     
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  19. Yamma-Fox added a post in a topic Yamaha RX1 Engines   

    Remember here guys, I'm just a Yamaha enthusiast.
    I have no alterior motives here.  I don't make money in this business.  I am just a guy that enjoys helping others who have an interest in Yamaha power options.
    I have tried to support Greg and REALLY WISH that I could continue to do so, because the more good people who help develop Yamaha power in aircraft the better!
    But he has forced my hand here, and I do not like it a bit.  You guys see what I normally post!  I am the positive easy going and supportive guy!
    But when someone puts out bad, slanted, and fake news that doesn't help anyone.
    When someone says their part will last thousands of hours, doesn't test it, and then doesn't warn others when a problem is found!!!  Then continues to pick on the other guys product that has been working virtually flawlessly..
    Really?
    Not cool... and not good for furthering Yamaha power.
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  20. Yamma-Fox added a post in a topic Yamaha RX1 Engines   

    Talk about blowing smoke!!
    A lot of us here know Teal, and know how humble and great of a guy he is.
    I doubt he has made more than lunch money along the way for all the hard work he has done, and I'm sure he has no regrets... because he is not it this for the money.  He does all this development as a side hobby to his normal job.... all out of the love for the sport, the yamaha engine, and helping others. 
    This blowhard "fake news" of a rant you just posted shows alot Greg.  Man that post is a case study example of using "high and mighty" unsubstantiated garbage in an easy to see through cheap shot attempt to play the oldest juvenile card in the book:  Trying to propel one's self upward by grabbing at people around them and dragging them down.
    As far as the reputation of Teal's kit,  I'll let the real world track record and results of those flying it speak for themselves.
    Greg, you know I've been a strong ally for you along the way... just look at the posts I've made here on your stuff and all the contributions I have made on FB.  But this is way out of line, (as was deleting the posts I made merely showing Teals products over on your Facebook Group).
    I would have preferred to continue to be your ally Greg, but the time has come to call you out for being so unfair.
     
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  21. Yamma-Fox added a post in a topic Yamaha RX1 Engines   

    And I  edited my last post.  Toned it down a little (probably still not toned down enough LOL) 
    Sorry for getting a little fired up and feisty!

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  22. Yamma-Fox added a post in a topic Bad Landing, Failed Landing Gear, Missed Inspection?   


    LOL!! 
    You stole my after landing checklist !!

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  23. Yamma-Fox added a post in a topic Pre-buy inspection in Grey Eagle, MN   

    IMO a 2 stroke can make a great aircraft engine, but it needs to be taken very well cared for, run, and maintained.  If there is any doubt (after talking to the owner) I would want to devalue it enough for an overhaul and inspection.  That's just me, and not everyone here would entirely agree with that position, but something to consider.
    If you can, have them take pics for you of as much of the plane as you can (inside and out).  Then post here for a lookover from some expert eyes.
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  24. Yamma-Fox added a post in a topic Bad Landing, Failed Landing Gear, Missed Inspection?   

    Yep... we can all relate (or those that will)

    I just dont have pics of my 2 "relates" when I was off in the turf between the taxi lights like that!
    One was in a Lake Amphibian (free castoring nosewheel, steer w/brakes)  when one brake lost it's prime upon landing.  Tower controller was amused when I asked if I was "clear enough of her runway" to do a quick dukes of hazard style brake bleeding job!  LOL

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  25. Yamma-Fox added a post in a topic Pre-buy inspection in Grey Eagle, MN   

    I'm thinking your best help from this forum might be getting some input from the experts here on what to consider, and what to ask about before you even get to the inspection stage:
    https://www.barnstormers.com/classified_1314132_+Avid+Flyer+Heavy+duty%2CHauler.html
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