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  1. Replies
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    Edo no longer exists. All the float designs were...

    Edo no longer exists. All the float designs were acquired by Kenmore Air sometime in the 1980s.


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    4,366

    If you want to go to the double groove pulley...

    If you want to go to the double groove pulley system, there is more to it than just the pulley on the jackscrew. Not sure on the Cub, but on the PA-16, it involves welding on brackets, adding idler...
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    The EarthX TSO limits use to electrical systems...

    The EarthX TSO limits use to electrical systems with alternators having external regulators. Guess just one more method to isolate the charging source in the event of an over voltage.


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    And if you EVER consider an EarthX battery, never...

    And if you EVER consider an EarthX battery, never install one with an alternator with an internal regulator!


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  5. Thread: Weld Quality

    by dgapilot
    Replies
    83
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    4,228

    I’m running 25’ CK superflex cables with a #9...

    I’m running 25’ CK superflex cables with a #9 torch. For the stuff I do, the only time I would have liked a water cooled torch was building my fixture table. I was running about 180 amps with the #26...
  6. Thread: Weld Quality

    by dgapilot
    Replies
    83
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    4,228

    I started my TIG welding on a Syncrowave 300 or...

    I started my TIG welding on a Syncrowave 300 or 350. Great machine, but way more than needed for aircraft stuff. Transformer machines provide a nice smooth arc, but like you said, I think the lowest...
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    Most Pipers up into the 50s used commercial...

    Most Pipers up into the 50s used commercial Weatherhead fittings with 45 degree flares.


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  8. Down side is weight. On something like a Cub...

    Down side is weight. On something like a Cub where speed isn’t an issue, the big question is Why?

    I did double cover on the belly of my Howard. Only reason was one of the wheel cylinders had...
  9. Surprised nobody mentioned it, but there is no...

    Surprised nobody mentioned it, but there is no such thing as a J3C-85! There are J3C-65s that have C85 engines installed.

    There was a question about the O-200 STC from Univair. Keep in mind that...
  10. Thread: Mag issues

    by dgapilot
    Replies
    38
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    1,732

    Here is the subject manual ...

    Here is the subject manual
    http://eaa105.org/Useful_Info/Documents/SlickMagOverhaulManual.pdf


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  11. Thread: Mag issues

    by dgapilot
    Replies
    38
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    1,732

    Actually it says “should”, not “must”. That...

    Actually it says “should”, not “must”. That should for testing holds as much weight as the should for using only parts from Unison and should not use PMA parts.


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  12. Steve, they were airplanes outside the serial...

    Steve, they were airplanes outside the serial effectivity of the AD, so no AMOC needed. I think I just referenced AC43.13-1 Chapter 4 as my approved data. It was about 30 years ago.


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  13. A problem I’ve seen is dirt and moisture sitting...

    A problem I’ve seen is dirt and moisture sitting on top of the junction between the tab and the longeron causing corrosion and pitting. The couple SuperCub frames I’ve redone, when replacing the...
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    Each 8110-3 is good ONLY for the one aircraft...

    Each 8110-3 is good ONLY for the one aircraft identified on the form. Now, I have used the same report or drawings for multiple aircraft, but each has a separate 8110-3. Most times, I also state that...
  15. Thread: Weld Quality

    by dgapilot
    Replies
    83
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    4,228

    I like .040 welding wire for the small joints. If...

    I like .040 welding wire for the small joints. If I recall you said you were running 15 cfh for gas, with a #12 cup, you may want to bump that up some.

    With gas lenses, don’t cheap out! I’ve had...
  16. Thread: Weld Quality

    by dgapilot
    Replies
    83
    Views
    4,228

    If you want some good practice, buy the “mini...

    If you want some good practice, buy the “mini hurricane” from these guys https://www.precisiontubelaser.com/buy-now
    I think it’s .058 wall, so a little thicker, but gives lots of practice on getting...
  17. Thread: Weld Quality

    by dgapilot
    Replies
    83
    Views
    4,228

    .7 would be about 1.4 pulses per second Sent...

    .7 would be about 1.4 pulses per second


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  18. Thread: Weld Quality

    by dgapilot
    Replies
    83
    Views
    4,228

    Weld Quality

    Filler rod should be ER70S2 or S6. Do not use 4130 rod. Try going with a Furick cup and gas lens, either a Jazzy 10 or a Fula 12. That lets you get you stick out farther and easier to get around the...
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    Bob, you are correct, once an FAA Inspector or a...

    Bob, you are correct, once an FAA Inspector or a DAR signs block 3 with a statement to the effect that the data in block 8 is considered “approved” for this airplane (and this airplane ONLY), no...
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    And when done, measure the diagonal both ways to...

    And when done, measure the diagonal both ways to be sure it is still square. If it is off, a little heat in the right place will bring it back square. It would be a good idea to take measurements...
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    Web, you are correct, without additional...

    Web, you are correct, without additional “approved data” the two alterations aren’t compatible. I’ve seen Field Approvals for metal spar clip wing Cubs, but they would not be Reed Clip Wings. I’ve...
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    I’ve never considered that. If you read the...

    I’ve never considered that. If you read the limitations on STC SA107RM, it gives the typical don’t extend this modification bless it’s determined no adverse effects . . . Nowhere in that a STC does...
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    Using 14 CFR 1.1, the definition of Major...

    Using 14 CFR 1.1, the definition of Major Alteration includes “not listed on the aircraft specification ( the specification was the precursor to the current TCDS). The definition of minor alteration...
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    It took something like 4 years for me to get DART...

    It took something like 4 years for me to get DART finally in 2004 and another 10 years to get DARF. Been an A&P since 1977, IA since 1980. Assisted in aircraft certification on about 15 airplanes...
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    That’s why having access to a DER or a DAR with...

    That’s why having access to a DER or a DAR with field approval authority is so important in today’s world. Yeah, FAA used to do it for free, but that ship has sailed.


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