ne14Yah

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About ne14Yah

  • Rank
    Advanced Member
  • Birthday 09/21/1964

Contact Methods

  • Website URL www.CHConstructionKC.com

Profile Information

  • Gender Male
  • Location Drexel, MO
  • Interests My Creator, my family, the outdoors, flying, camping, enjoying our habitable earth.

ne14Yah's Activity

  1. ne14Yah added a post in a topic Matco 8 inch wide tailwheel   

    Which Matco tail wheel assembly can this be used on?
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  2. ne14Yah added a post in a topic Rotary valve oil overflow   

    I know this is an old thread, but wondering if there was a consensus on whether or not it was normal for the oil tank level to rise during operation and then settle when cold?  My 582 99 BH mounted on an Avid Flyer Mod B rises about 5/16" during operation and then settles back to normal full cold level.
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  3. ne14Yah added a post in a topic Avid Flyer MK IV for sale   

    Jim, what is the spacing on the round stock that supports the mains on the trailer?
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  4. ne14Yah added a post in a topic Avid Airdale with Harley engine on barnstormers   

    Jim, what was your process for the tank sealing?
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  5. ne14Yah added a post in a topic Avid Airdale with Harley engine on barnstormers   

    So, finally have the results of the prop pulls which we did today:
    -  68" Warp Drive 2 blade @ 13 degrees = 260 lbs @ 4600 on the tach / 2396 at the prop
    -  78" x 35"  2 blade CATTO = 325 lbs @ 4300 on the tach / 2240 at the prop
    The original set up and how I received it was 10 degrees on the warp drive.  Probably around 200 lbs of thrust achieved.  It's amazing it left the ground!  Anyway, it was confirmed that it was under propped.  Just discovered I have a leak in the right wing FG fuel tank.  Anyone have any ideas on the best approach to sealing it?  it is traveling out to and dripping from the rear spar attach bolt.  I am really hoping I won't have to open it up.
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  6. ne14Yah added a post in a topic Avid Airdale with Harley engine on barnstormers   

    I measured the washout from the underside of the leading edge to the trailing edge.  Would be greater than from spar to spar, so probably was set at 2".  The static rpm is 4600 with 13 degrees pitch - about 2400 then at the prop on the ground.  With the airframe being stretched 16" over a standard Avid MK4, would the CG be slightly different or would you expect it to be the same?
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  7. ne14Yah added a post in a topic Avid Airdale with Harley engine on barnstormers   

    -  W&B shows datum at leading edge of wing.  Forward CG is 11.185 aft.  Aft CG is 16.5.  With 200 lb pilot and 90 lbs of fuel, the CG is 14.28  Dry weight is 744.  Gross is 1400 design/1320 legal.
    -  Washout is 2 3/4" on right wing 2 3/8" on left wing. Left wing can be adjusted.  Right is fixed.  Leading and trailing edges are straight.
    -  Prop is 68 1/2" diameter, right hand turning in right direction.  Blades facing proper direction.
    -  1.92:1 belt reduction drive
    *  With horizontal stabilizer held up at level, the left wing experiences negative incidence (relative wind hitting top surface).
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  8. ne14Yah added a post in a topic Avid Airdale with Harley engine on barnstormers   

    Anyone have  HH STOL wings they want to sell?  Or perhaps some insight as to how someone can assemble the parts needed to build a set?  I had originally planned on doing so anyway, but now it looks like a priority.
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  9. ne14Yah added a post in a topic Avid Airdale with Harley engine on barnstormers   

    Finally able to get briefed from my IA friend who hopped it down the runway.  He said it "just doesn't want to fly."  He barely was able to get it a couple of feet in ground effect after "prying it off of the runway."  He suspects it's a combination of not enough prop, low lift wing design and not enough wing incidence (Not sure of the thrust line issue - will look into it more when he's out next).  I sat right seat on his 3rd run to monitor engine gauges and on that run, he said we were at 65/70 mph and it would not fly.  He also commented that he did not feel it was safe to fly it around the patch.  I wish I had that information prior to my attempt the other day.   We will be discussing needed changes hopefully this week when he is out to test another prop and check pulls.  Bottom line, I am not going to be able to 'just fly it and have fun.'
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  10. ne14Yah added a post in a topic Avid Airdale with Harley engine on barnstormers   

    Jim, on page 1 I laid out that for the most part the HS, wing root cord and thrust line are all parallel, but the thrust line is about .5 degree tilted back from being parallel.  You can see how severe it is tilted back in the close-up pic i posted.  I do not have any info regarding a "red line" other than a piece of red tape on the tach @ 5500.  The wash-out is about 3.5 degrees, what ever that works out in inches.  I don't have the CG info handy, but empty it is more forward in it's acceptable range - so more nose heavy.  I am hoping to measure static thrust soon.  Waiting on my IA friend to assist when he has some time.
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  11. ne14Yah added a post in a topic Avid Airdale with Harley engine on barnstormers   

    1Avidflyer, do you have any washout in your wing?  If so, how much?
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  12. ne14Yah added a post in a topic Avid Airdale with Harley engine on barnstormers   

    I wasn't focusing on static rpm at the time I was playing with the jetting, so no static run before.  All it wanted to do was load up when reducing power.  It was obviously running too rich.  I spoke with a Harley guy who confirmed it and electronic timing was not advanced enough.  1Avidflyer, my wing is not a flat bottom chord like yours.  It's more semi-symetrical.  My instinct is telling me that the relative wind is not hitting the wing correctly.  It also has a lot of wash-out, so at the wing tips, the relative wind is on top of the wing.
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  13. ne14Yah added a post in a topic Avid Airdale with Harley engine on barnstormers   

    As suspected, looks like the thrust line is an issue.  Spent the better part of 2 days dialing in the jetting.  Purring nicely now.  Straightened out a miss-rigged tail wheel to the rudder (canted off center relative to the rudder).  Prop pitch had been 10 degrees on one blade and 9 degrees on the other.  As mentioned, didn't seem to be producing enough airspeed, so increased to 13 degrees.  Producing 4600 rpm static, so in the ball park I suspect.  High speed taxing seems to feel like we are getting somewhere.  So, today was the day I was going to take her up.  Thankfully it was a nice cool morning with light wind down the runway.  Expected to get light around 40 or so, but nothing.  Increased to above 50 and knew something wasn't right.  Still nothing.  Made the mistake of forcing off the runway and the rodeo began.  Wild porpoising with it wanting to stick to the runway like a magnet.  Looks like we will be modifying the engine mount.  Should have trusted my instincts.  Thankfully, no harm done, but could have easily been a real bad day.
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  14. ne14Yah added a post in a topic Avid Airdale with Harley engine on barnstormers   

    Allen, John Larson is an engineer and the designer of the Avid Mark IV/Airdale and others.  He advised me that P factor effects both the right/left and up/down torque tendencies.  Just reporting from what he said.  I greatly appreciate everyone's wisdom and advice!
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  15. ne14Yah added a post in a topic Avid Airdale with Harley engine on barnstormers   

    Allen, did you take a look at the picture that shows the prop and the cowl opening?  Did you notice that they are not parallel showing my engine to be canted up?  John Larson told me that any any engine should have a 1.5 degree down thrust line against the center line to counter P factor.  I want to make sure it is inherently safe to fly and the geometry is according to design.
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