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Message-ID: <4CFD725F.70206@gmail.com>
Date: Mon, 06 Dec 2010 17:31:43 -0600
From: Dave <david.staten@gmail.com>
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To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Today I am a man!
References: <list-4631079@logan.com>
In-Reply-To: <list-4631079@logan.com>
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If you decide to play with the welding rig I have out there at the 
hangar, feel free.

BUT.. you will need to take the tank down and get the gas changed. It 
was set up for aluminum  wire, which uses a different gas mix than 
steel. The aluminum wire was too soft and kept jamming in the feeder.

Dave

On 12/6/2010 11:06 AM, Chris Barber wrote:
> Well, yesterday actually.  I completed the EAA Sport Air workshop 
> yesterday on Welding.  While I know the Gas Oxy method it just a BIT 
> antiquated by all the new stuff, the class removed much of the mystery 
> involved.  I was amazed at the progress made in just two days.  From 
> dripped, blotchy beads, to "not all that bad", somewhat consistent beads.
> I know it is not much of a leap for many of y'all, but I always felt 
> quite lacking not having a base understanding of the process (videos 
> and books just do not breach the gap).  Now I will be looking for 
> a Tig course, or even, now with a basic comprehension, even a friends 
> input.  The Velocity is not a big welded craft, but there were a few 
> things I would at least have entertained, even if I would have farmed 
> them out anyway.
> On the rotary front, since I dedicated a bus for just the EM2/EC2 and 
> reinstalled the units in the plane (currently using Rino's old unit 
> since the wiring is correct for it...my unit has a pin difference 
> being a later unit), I am currently NOT having my tach dropping out at 
> 6000 rpm (so far).  Last night I did a quick run up after leaving from 
> the welding class and ran up to 6450 rmp static at about 34.5 MAP.  I 
> had trouble holding it with the brakes...and this was on rough 
> asphalt.  I hope to get out there in a bit and do some tuning and 
> RE-determine best cranking settings.  It is starting quickly when cold 
> at full rich mixture.  Gotta keep it a full mixture for a few minutes 
> till it warms.  However, it is taking quite a bit of fudging around to 
> get it to start hot.  Per Mistral, my injectors are large so I think I 
> may need to go leaner (about 10 o' clock currently)  when hot...or so 
> my preliminary feeling is such.  For those who are not there yet, you 
> pretty much have to start over with base mapping every time you get 
> your units back from Tracy.  Of course, I am getting much better at 
> it...... ;-)
> All the best,
> Chris Barber
> Houston, Texas
> Velocity 13b turbo with Mistral intake


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    If you decide to play with the welding rig I have out there at the
    hangar, feel free. <br>
    <br>
    BUT.. you will need to take the tank down and get the gas changed.
    It was set up for aluminum&nbsp; wire, which uses a different gas mix
    than steel. The aluminum wire was too soft and kept jamming in the
    feeder. <br>
    <br>
    Dave<br>
    <br>
    On 12/6/2010 11:06 AM, Chris Barber wrote:
    <blockquote cite="mid:list-4631079@logan.com" type="cite">
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      <div style="font-family: Tahoma; direction: ltr; color: rgb(0, 0,
        0); font-size: 13px;">
        <div>Well, yesterday actually.&nbsp; I completed the&nbsp;EAA&nbsp;Sport Air
          workshop yesterday on Welding.&nbsp; While I know the Gas Oxy
          method it just a&nbsp;BIT antiquated by all the new stuff, the
          class removed much of the mystery involved.&nbsp; I was amazed at
          the progress made in just two days.&nbsp; From dripped, blotchy
          beads, to "not all that bad", somewhat&nbsp;consistent beads.&nbsp;
        </div>
        <div>&nbsp;</div>
        <div>I know it is not much of a leap for many of y'all, but I
          always felt quite lacking not having a base understanding of
          the process (videos and books just do not breach the gap).&nbsp;
          Now I will be looking for a&nbsp;Tig course, or even, now with a
          basic comprehension, even a friends input.&nbsp; The Velocity is
          not a big welded craft, but there were a few things I&nbsp;would at
          least have entertained, even if I would have farmed them out
          anyway.</div>
        <div>&nbsp;</div>
        <div>On the rotary front, since I&nbsp;dedicated a bus for just the
          EM2/EC2 and reinstalled the units in the plane (currently
          using&nbsp;Rino's old unit since the wiring is correct for it...my
          unit has a pin difference being a later unit), I am
          currently&nbsp;NOT&nbsp;having my&nbsp;tach dropping out at 6000 rpm (so
          far).&nbsp; Last night I did a quick run up after leaving from the
          welding class and ran up to 6450&nbsp;rmp static at about 34.5
          MAP.&nbsp; I had trouble holding it with the brakes...and this was
          on rough asphalt.&nbsp; I hope to get out there in a bit and do
          some tuning and RE-determine best cranking settings.&nbsp; It is
          starting&nbsp;quickly when cold at full rich mixture.&nbsp;&nbsp;Gotta keep
          it a full mixture for a few minutes till it warms.&nbsp; However,
          it is taking quite a bit of fudging around to get it to start
          hot.&nbsp; Per Mistral, my injectors are large so I think I may
          need to go leaner (about&nbsp;10 o' clock currently) &nbsp;when hot...or
          so my preliminary feeling is such.&nbsp; For those who are not
          there yet, you pretty much have to start over with base
          mapping&nbsp;every time you get your units back from Tracy.&nbsp; Of
          course, I am getting much better at it...... ;-)</div>
        <div>&nbsp;</div>
        <div>All the best,</div>
        <div>&nbsp;</div>
        <div>Chris Barber</div>
        <div>Houston, Texas</div>
        <div>Velocity&nbsp;13b turbo with Mistral intake</div>
      </div>
    </blockquote>
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