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Old 05-25-2010, 09:20 PM   #31
Shotgun06
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Re: Sig Citabria (Build Log)


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Time to mate the wing to the fuselage. I installed the two 1/8 wire braces and they have to be soldered together. They are what is really holding the wing at the leading edge to the fuselage as the cabin sides are somewhat weak since they are made only of two layer of sheeting.
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Old 05-26-2010, 08:54 PM   #32
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Re: Sig Citabria (Build Log)

Well, I have some kind of a dilemma to resolve and I am looking for some opinions...

I am starting to install the engine and I am not sure if I should use the aluminum engine mount that comes with the kit or the plastic one from a different manufacturer that I have and that seem to be a perfect fit for the ASP 61fs???

Also, should I mount the engine inverted or sideways??? Sideways, the rocker cover would be protruding from the engine cowling and the needle valve would stick out from the top of the cowling. Inverted, the engine would be totally enclosed and would get cooling from the air scoop.

What do you think...
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Old 05-31-2010, 04:40 PM   #33
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Re: Sig Citabria (Build Log)

The metal Sig mounts which come with the kit are very nice and work well. They are however a bit fiddly in comparison to your plastic mount to get set up and drilled accurately. Once it's done though, that task is forever behind you.

You might also find that if you mount the engine inverted, you may need to close up the air intakes at the top of the cowl so that you force all incoming air through the lower scoop. If you leave the top open and the engine sits in the bottom opening - which it effectively blocks, it's easier for the air to go into the top, not go through your cooling fins, bypass your enigne and let it fry.

That's the reason you'll see guys with big radial cowls block off the entire opening except just in front of the cylinder. Otherwise, there is squat cooling.
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Old 06-03-2010, 10:27 PM   #34
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Re: Sig Citabria (Build Log)

I have finally decided to install the engine sideways and have started the installation. I had to buy a set of tap and dye to use the provided Sig aluminum engine mount. A quick stop at Princess Auto while I was in town and I was equipped for the task. That went well for a first experience at taping...

I have decided to add some triangle balsa stick behind the firewall on each side as the joint seemed weak to me...
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Last edited by Shotgun06; 06-03-2010 at 11:02 PM.
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Old 06-04-2010, 03:40 AM   #35
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Re: Sig Citabria (Build Log)

The Citrabria are for sur ea nice plane, my ex-boss has a full size in orange with sunburst on the wings. he let me fly it, once in the air of course tried to talk me into landing..ya right..but yep real nice planes, kinda sneaky about the name too Citabria, Airbatic spelt backwards
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Old 06-04-2010, 12:20 PM   #36
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Re: Sig Citabria (Build Log)

I actualy have flown this particular plane over a period of one year as I was teaching the owner's son and daughter to fly. That was a nice airplane to fly and I used it to introduce myself to aerobatics but this version was a little bit underpowered to my liking...
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Old 06-04-2010, 09:29 PM   #37
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Re: Sig Citabria (Build Log)

I now have installed the engine mount to the fuselage. Just need to add the reinforcement to secure it in place.
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Old 06-08-2010, 09:08 PM   #38
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Re: Sig Citabria (Build Log)

Looking great! The side mount should be good...easier access to the glow plug and keeps the enhaust pointing down so less mess. Keep it coming, great thread.
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Old 01-26-2011, 02:00 PM   #39
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Re: Sig Citabria (Build Log)

Now that I have completed a full makeover of our main bathroom, I can get back to model building and flying, hopefully...

This Citabria MUST fly this summer and I am getting back on the build.

Here's how I made a template to figure out where to start cutting the holes in the cowling.

Alain
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Old 01-26-2011, 11:30 PM   #40
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Re: Sig Citabria (Build Log)

Man, that's quite a break from the build...must have been one heck of a reno job!

Cowling looks perfect, great template work. If I remember, you already have the wings and tail completed, and there's probably another 2-3 months at least before much hope of flying so lots of time to get it done.
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