Mailing List flyrotary@lancaironline.net Message #2092
From: Bartrim, Todd <sbartrim@mail.canfor.ca>
Subject: RE: [FlyRotary] Re: First run approaches
Date: Fri, 4 Jul 2003 14:57:23 -0700
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>
RE: [FlyRotary] Re: First run approaches


    FWIW, a flatbed wrecker worked great for my RV-8 fuselage, and that's how the RV-3 will go as well.  You'll have to check the length though, since some of the wreckers are shorter than others.  I was absolutely amazed at how the majority of people were completely oblivious to the fact that there was an airplane on a wrecker traveling down the road.  I'd say that 75% of the people in my neighborhood didn't even notice.  I bet they notice when I run the engine this weekend :-)

    This is exactly how I've planned to do it. I do have a flatbed trailer, but since the width of it is right on the centerline of my tires, I recently decided that it was a little too risky. The HS is also 10' wide, so legally I should have an overwidth permit, so I decided that for $75, a flatbed wrecker can do the job and take care of the permit. I'm glad to hear that it works well.

            I'm not at all surprised that most people don't notice. These days people really are oblivious to their surroundings (really noticeable when you ride a motorbike). 


     "go ahead, just TRY to weld me".   Then I think I heard laughter.  I'm not sure if it was the pipe, or the new (still in the box) TIG welder laughing :-)

    HaHa! Even when I have journeyman welders offer to do a weld for me, I turn 'em down, as I'd rather build it all myself. I couldn't stand having that welder sitting in a box next to me, while I hired a welder. After you practice awhile, you'll be almost embarrassed that you used to pay someone to do it for you. Just remember, when someone says "nice weld", it's not necessarily a compliment.

     

    BTW, the next project will be an Airbike,
    I'm not familiar with it... got a link?

    I noticed someone else warned about fouled plugs. When I rebuilt mine, I used Vaseline to hold in the seals, then heavy gear oil to pickle it, then I had some 50:1 mix gas which I decided to add another "shot of oil" giving me a maybe 20:1 ?? mix, and I have my oil injection operational. I'm surprised nobody reported a pollution alert due to all the smoke, but it all burned off without fouling a single plug. Your experience may vary.

     

EGTs balanced,

===>  Now here's something I noticed when I was skimming through the
programming manual last night.  I have no way to ever balance the rotors.
My only option for EGT or O2 reading is the single pipe coming out of the
turbo.  Since this is both rotors, I'll just have to hope it's close enough.

    I also wondered about this and thought about drilling and tapping a hole right at the outlet of each port in the exhaust manifold, but then decided that sometimes close enough is acceptable. As Ed said "ya gotta get flying to keep the juices flowing". However I did remove the switching valve and rather than just welding up the shaft hole, I tapped it to 1/4 NPT, then installed a TC in it. I then installed another TC about 18" downstream of the turbo. I'm kinda curious as to the temp drop through the turbo.

    Good luck with your engine start.

S. Todd Bartrim
Turbo 13B
RX-9endurance
C-FSTB
http://www3.telus.net/haywire/RV-9/C-FSTB.htm

        "Imagination is more important than knowledge"
                                        -Albert Einstein

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