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  1. Thread: Weld Quality

    by dgapilot
    Replies
    35
    Views
    715

    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...
  2. Thread: Weld Quality

    by dgapilot
    Replies
    35
    Views
    715

    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...
  3. Thread: Weld Quality

    by dgapilot
    Replies
    35
    Views
    715

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

    .7 would be about 1.4 pulses per second


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  4. Thread: Weld Quality

    by dgapilot
    Replies
    35
    Views
    715

    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...
  5. Replies
    57
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    3,783

    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...
  6. Replies
    3
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    232

    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...
  7. Replies
    57
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    3,783

    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...
  8. Replies
    57
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    3,783

    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...
  9. Replies
    57
    Views
    3,783

    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...
  10. Replies
    57
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    3,783

    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...
  11. Replies
    57
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    3,783

    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.


    Sent from my iPad using...
  12. Replies
    57
    Views
    3,783

    Bob, the funny thing is, doing a Reed Clip wing...

    Bob, the funny thing is, doing a Reed Clip wing (per the drawings, wood spars and A75) is a minor alteration since it is on the TC. Can be done with just log book entry. All that said, I would do a...
  13. Replies
    30
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    1,214

    If I remember correctly, Maule Tailwheels use...

    If I remember correctly, Maule Tailwheels use compression springs and Scott/ABW use tension springs.


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  14. Pretty much all the airplanes I’ve bought and...

    Pretty much all the airplanes I’ve bought and sold have been cash transactions, sometimes lots of it! Always with a handshake and the minimum written, along with an AC Form 8050-2 Bill of Sale.

    ...
  15. Replies
    57
    Views
    3,783

    J-3 with wood spars and 0200 engine

    If you have metal spars, you don’t have a Reed Clip Wing as that approval is only for wood spars. That said, I suspect someone provided an approval for a “Reed like” clip wing. Another point is that...
  16. Replies
    44
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    1,365

    Car 3.416 requires a “certified” propeller. If...

    Car 3.416 requires a “certified” propeller. If the prop doesn’t have a TC, no joy.


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  17. Replies
    28
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    757

    Just an FYI, the forward fitting on the Howard...

    Just an FYI, the forward fitting on the Howard vertical stabilizer was slotted so you could move it left or right as needed to trim, then clamp the bolts down tight to hold it in place. Granted that...
  18. Replies
    45
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    1,285

    When all the battery power drains down, the...

    When all the battery power drains down, the whisky compass still works great. Don’t leave home without it!


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  19. Replies
    45
    Views
    1,285

    91.205 requires a whiskey compass for all normal...

    91.205 requires a whiskey compass for all normal category aircraft. If you have an Experimental or other Special type of certificate,91.205 does not apply. Typical Operating Limitations for...
  20. Replies
    28
    Views
    757

    Just bend the LE of the vertical stabilizer like...

    Just bend the LE of the vertical stabilizer like Piper says to.


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  21. Replies
    28
    Views
    2,303

    Do yourself a favor and bite the bullet on the...

    Do yourself a favor and bite the bullet on the Sutton exhaust now. Yes, you can try to repair it, but more than likely it will crack again in short order. The Sutton is lighter, and gets the heat...
  22. Replies
    5
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    322

    I think most of us use 4130 simply because it is...

    I think most of us use 4130 simply because it is generally easier to find in the sizes needed for aircraft repair. 4130 is a little harder to form and will work harden more when bending it. If you...
  23. Replies
    16
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    829

    Like Steve said, use draw clecoes. Having a gap...

    Like Steve said, use draw clecoes. Having a gap defeats the purpose of the doubler. Be careful drilling out the old rivets. Debut both the spar and the doubler. Assemble and check hole size with...
  24. The real key is to be able to visually detect...

    The real key is to be able to visually detect when things start to stray as early as possible, then apply the appropriate control to correct it. Think less is more! If you detect a deviation sooner,...
  25. Coefficient of friction of the little wheel is...

    Coefficient of friction of the little wheel is much greater on grass than pavement. Tends to keep you pointed in the right direction.


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