james miller

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Posts posted by james miller

  3. Posted

    I just built and received a/w cert in October 2017.

    Is your plane flying now.?

    Reason for asking, I would love to see it and measure different parts of the flight system.  like flapperons etc.

    I'm in Ocala, keep the aircraft @ marion county x35

    Phone is 404-409-5308

     

    Thanks  Jim

     

  4. Posted

    the prop is a warp drive 72" taper tip 3 blade

    6300 rpm static, only had 6000 rpms in the air

    egt unknown at this time, tiny tach (verified with 3 other tachs)  gross weight was  1100#  speed wings, 582

    max gross is 1150 /   max rpm per rotax is 6800

    thanks in advance

    jim

     

  5. Posted

    built my avid in two years, received a/w cert in October 17.  First flight was uneventful, was sluggish but flyable.

    bought a new prop from warp drive set pitch at 13 degrees.  hardly flew, 200 ft per min vsi.

    have re-pitched prop to 11 degrees, hoping this will help with climb rate and flight ability.

    if anyone has numbers or suggestions for better flight , I would appreciate any help you may offer.

    thanks,,

    jim

  6. Posted

    Hey guys, I'm new here.

    Just built and got a/w cert in October 17.

    Installed Warp Drive 3 blade composite prop.

    Set Pitch at 16.5 degrees, static of 6300 horrible first test flight.

    Just barely flew the pattern and landed.

    Re adjusted pitch to 15 degrees and static of 6500.

    What should I expect of next flight?  Any thoughts ?

    Thanks and any help is surely appreciated.

    Jim

    Can you elaborate on "horrible first test flight?" Wouldn't climb? Over revving? High EGT's? If it was that scary in performance you have something really wrong. Prop pitching has been discussed in depth lots of times but the general consensus is that static RPM with a two stroke is a poor indicator of what you will get in-flight. My best settings give me 62-6400 during a 55mph climb out. The 582 goes flat above 6500 rpm. I've pitched mine for every 100 rpm from 6700 to 6000 in the climb and 6300 gives my airplane the best combo of climb/cruise. Next question what are you using for a tach? Needle tachs fed by the grey wire off the lighting coil are notoriously inaccurate and have caused many people lots of headaches in tuning and performance due to not turning nearly the RPM they thought they were. My last one was 1000 rpm off at WOT. A $50 tiny tach is worth it's weight in gold. Congrats on getting to the test flight phase.

    EDIT: Jim and I were typing at the same time it looks like. Seems I remember people starting with 13 ish degrees on the warps. Were your EGT's really low like 900-1000 degrees while wide open?

    the plane would not climb, maybe 200 fpm, felt like near stall, rpms at 6000 using tiny tach. had static of 6300.  I thought rpms would increase when in the air.

    The aircraft had a definite shudder like it was going to stall.

    Finally got near pattern altitude and landed.

    This was third flight.

    Only difference between 1st and third flight was the prop and adjustments to take slop out of aileron mixer box.

    I was too busy flying to look at egt's.  lol

    Still looking for help.  thanks all.

    jim

  8. Posted

    Hey guys, I'm new here.

    Just built and got a/w cert in October 17.

    Installed Warp Drive 3 blade composite prop.

    Set Pitch at 16.5 degrees, static of 6300 horrible first test flight.

    Just barely flew the pattern and landed.

    Re adjusted pitch to 15 degrees and static of 6500.

    What should I expect of next flight?  Any thoughts ?

    Thanks and any help is surely appreciated.

    Jim

  9. Posted

    Boat,

          There has to be more to the story?  Did your plane have one?  What happened?

    ChrisB is the one with most experience.  I sent sketches of the spring-loaded attachment to Steve N166???, I think -

    Chris had one on his old plane, and now has a custom-built on his new plane.  I have one.  They are no longer made.

    For the stock Avid, I donno.  I have parts and plans for two different custom ones for my Foxy, but wont fit yours.

    EDMO 

    Do you have the mains set for nose gear?

    Amienoel put one on her plane.

    Does anyone know of anyone who has or will fabricate a nose gear for a mk14?

    my #  404-409-5308  Jim in Florida