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Sig 1/4 J3 Kit converted to PA-18 Super Cub (Build)

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Old 02-28-2012, 02:46 PM
  #676
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Default RE: Sig 1/4 J3 Kit converted to PA-18 Super Cub (Build)


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ORIGINAL: SunDevilPilot


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ORIGINAL: knucklebutt

I'll certainly film the maiden flight, but be warned all !!! It will be a very boring film !!!!!!!



Denis
I like boring on a maiden!

Phil

Hopefully not "boring" in the sense of ending a maiden with boring a hole in the ground .

Zor

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Old 02-28-2012, 03:02 PM
  #677
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Default RE: Sig 1/4 J3 Kit converted to PA-18 Super Cub (Build)

I stopped by Woodcraft today and picked up a piece of wood for my INSTRUMENT PANEL.

I wanted something lighter in color but of course that is not what I got. I was going through the turning blank section, which has a lot of exotic woods, when I found a piece of redheart. The piece was 2" X 2" by 12", more than enough for my project. For some reason I really liked the color. It was all covered in wax to protect the wood but it looked good. When I got home I ran the piece through the table saw. The first pass cleaned up the rough surface and the second shaved off roughly a 1/16" piece. I think the lumbermill needs a new blade as the block of wood was all chewed up.

I'll do this one up then and we will see how it turns out. If I don't like it I will find something else.

The second photo shows the scrap with a little water on it, to show what the finished panel will look like.

SunDevilPilot
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Old 02-28-2012, 03:04 PM
  #678
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Default RE: Sig 1/4 J3 Kit converted to PA-18 Super Cub (Build)


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ORIGINAL: SunDevilPilot

I have no video recorder, beyond my iPhone. But, if someone is there (Denis?) it will likely be recorded.

At this point all the linkage in the tail, and for the entire airplane for that matter, is complete.

I have used a pull-pull style tailwheel on my last three planes and all work perfect. There is a spring built into the system at the tail which prevents any harsh shocks from an offset landing from reaching the servo. Because of the adjustable linkage at the tail tracking is easily adjusted to get perfect steering.

The width of the rudder / tailwheel arm on the servo corresponds with the width of arm on the rudder and tailwheel.

You can now see why I put the exit holes where the pull-pull cables exit. I had to make sure they miss the tail brace wires.

SunDevilPilot
SkyLane Digital Vdeo Prod Works pretty cheep
https://www.youtube.com/watch?v=dk7w...sD1dfVl9J_UhtR

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Old 02-28-2012, 03:39 PM
  #679
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Default RE: Sig 1/4 J3 Kit converted to PA-18 Super Cub (Build)

That's going to make a really pretty DASH!
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Old 02-28-2012, 03:58 PM
  #680
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Default RE: Sig 1/4 J3 Kit converted to PA-18 Super Cub (Build)

It's Not a DASH it's an Instrument Panel .... and Instrument panels are not PRETTY. They are Functional. It's a Super Cub, Not a Lincoln Town Car.
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That's going to make a really pretty DASH!
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Old 02-28-2012, 04:09 PM
  #681
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Default RE: Sig 1/4 J3 Kit converted to PA-18 Super Cub (Build)

Mine will be non-functional and classy!

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Old 02-28-2012, 04:21 PM
  #682
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Default RE: Sig 1/4 J3 Kit converted to PA-18 Super Cub (Build)


Yep that wooden meter board is going to look great!!!

Hound dog you keep it up and I'll build a P-51 and deck out the cockpit like a doll house, which is exactly what a 1/4 scale cock pit is. What with those guys playing with those Aces of Iorn dolls.

"It's not a doll! It's an AVIATOR!"

Looks like a little doll to me. :P
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Old 02-28-2012, 04:27 PM
  #683
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Default RE: Sig 1/4 J3 Kit converted to PA-18 Super Cub (Build)


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ORIGINAL: SunDevilPilot

Mine will be non-functional and classy!
SunDevilPilot
Functional is Classy to a Cub Pilot: Check these Panels out:
https://www.google.com/search?q=supe...iw=929&bih=523

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Old 02-28-2012, 04:44 PM
  #684
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Default RE: Sig 1/4 J3 Kit converted to PA-18 Super Cub (Build)


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ORIGINAL: AmishWarlord


Yep that wooden meter board is going to look great!!!

Hound dog you keep it up and I'll build a P-51 and deck out the cockpit like a doll house, which is exactly what a 1/4 scale cock pit is. What with those guys playing with those Aces of Iorn dolls.

"It's not a doll! It's an AVIATOR!"

Looks like a little doll to me. :P
I surrendor, Give Up, Quit, Holler Uncle. There Just ain't no convincing an "LECTRIC" flyer. ...
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Old 02-28-2012, 04:58 PM
  #685
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Default RE: Sig 1/4 J3 Kit converted to PA-18 Super Cub (Build)

We are a little different!

You have to admit....  All the doll stuff was funny, I got a good laugh.

Wait until you see it fly, you'll be sold on this electric stuff!

SunDevilPilot
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Old 02-28-2012, 05:06 PM
  #686
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Default RE: Sig 1/4 J3 Kit converted to PA-18 Super Cub (Build)

Quote:
ORIGINAL: SunDevilPilot

I have no video recorder, beyond my iPhone. But, if someone is there (Denis?) it will likely be recorded.

At this point all the linkage in the tail, and for the entire airplane for that matter, is complete.

I have used a pull-pull style tailwheel on my last three planes and all work perfect. There is a pair of springs built into the system at the tail which prevents any harsh shocks from an offset landing from reaching the servo. Because of the adjustable linkage at the tail tracking is easily adjusted to get perfect steering.

The width of the rudder / tailwheel arm on the servo corresponds with the width of arm on the rudder and tailwheel.

You can now see why I put the exit holes where the pull-pull cables exit. I had to make sure they miss the tail brace wires.

SunDevilPilot

Phil,
Are the tail brace wires functional?
Also, would you take a closeup of the spring in the tail wheel assembly? Is there a way to identify the tension of these springs and where you obtained them?
Thanks for your time. The plane looks great.

pete
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Old 02-28-2012, 05:29 PM
  #687
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Default RE: Sig 1/4 J3 Kit converted to PA-18 Super Cub (Build)


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ORIGINAL: SunDevilPilot


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ORIGINAL: TripleDeucer

Phil, what brand is your tailwheel assy? Thanks, Mark
I would venture a guess it is Sig but I'm not sure. Let me do a little looking around. It came with the kit. I also got the exact same one with my Sig 1/5th Scale Cub Kit.

** Update - I found it. My tailwheel assembly is from Sig.

http://www.sigmfg.com/IndexText/SIGSH729.html

SunDevilPilot


Thanks for the info. Mark
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Old 02-28-2012, 05:35 PM
  #688
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Default RE: Sig 1/4 J3 Kit converted to PA-18 Super Cub (Build)


Quote:
ORIGINAL: SunDevilPilot

We are a little different!
You have to admit.... All the doll stuff was funny, I got a good laugh.
Wait until you see it fly, you'll be sold on this electric stuff!
SunDevilPilot
I all ready surrendored, Give Up, Quit, Hollerd Uncle.
Ya can't be so Cruel as to Sbject me to "Lectrit STUFF" Too
I'll Shoot the Maiden with 2 cameras and with Remote Audio and all,
if ya want's.
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Old 02-28-2012, 06:04 PM
  #689
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Default RE: Sig 1/4 J3 Kit converted to PA-18 Super Cub (Build)


Quote:
ORIGINAL: malitape

Quote:
ORIGINAL: SunDevilPilot

I have no video recorder, beyond my iPhone. But, if someone is there (Denis?) it will likely be recorded.

At this point all the linkage in the tail, and for the entire airplane for that matter, is complete.

I have used a pull-pull style tailwheel on my last three planes and all work perfect. There is a pair of springs built into the system at the tail which prevents any harsh shocks from an offset landing from reaching the servo. Because of the adjustable linkage at the tail tracking is easily adjusted to get perfect steering.

The width of the rudder / tailwheel arm on the servo corresponds with the width of arm on the rudder and tailwheel.

You can now see why I put the exit holes where the pull-pull cables exit. I had to make sure they miss the tail brace wires.

SunDevilPilot

Phil,
Are the tail brace wires functional?
Also, would you take a closeup of the spring in the tail wheel assembly? Is there a way to identify the tension of these springs and where you obtained them?
Thanks for your time. The plane looks great.

pete
The tail brace wires are functional. The rudder and elevator stabs have hard-points installed in them. The wires make the entire tail rock solid.

I bet the plane would be fine with out the wires, if you babied the plane, but I have no worries about a failure of the tail now.

There is not much tension in the tailwheel wires. I just take out the slack and a tiny bit more. The springs are all but fully compressed.

My other Cub has some small springs from Ace Hardware. These springs came with this kit so I am not sure of their tension. They are not too difficult to expand.

Hope this helps!

SunDevilPilot

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Old 02-28-2012, 08:02 PM
  #690
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Default RE: Sig 1/4 J3 Kit converted to PA-18 Super Cub (Build)

Thanks, Phil, it helps a lot.

pete
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Old 02-28-2012, 08:08 PM
  #691
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Default RE: Sig 1/4 J3 Kit converted to PA-18 Super Cub (Build)

My tailwheel will rotate with the weight of the plane on it but if I push down lightly on the tail and turn it the springs kick in.  The wheel will still rotate but not as much.  Hopefully that gives you some idea of their strength. 

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Old 02-29-2012, 08:48 AM
  #692
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Default RE: Sig 1/4 J3 Kit converted to PA-18 Super Cub (Build)

Nice work conversions can be a challenge- best of luck on the test flight

Richard AMA52920
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Old 03-03-2012, 01:59 PM
  #693
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Default RE: Sig 1/4 J3 Kit converted to PA-18 Super Cub (Build)

SDP,
I noticed your build thread hadn't been rated so I took the liberty. Can't wait to hear about the maiden.
Later!!
Anthony
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Old 03-03-2012, 07:29 PM
  #694
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Default RE: Sig 1/4 J3 Kit converted to PA-18 Super Cub (Build)

SunDevilPilot;

I thought you might like this picture on an old piper cub newspaper ad I have hanging on the wall in my shop. I know you have the Super Cub and not the Super Cruiser, but the paint scheme looks the same. This is the picture part because I can't scan it all in one picture.

Thanks,
Eddie
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Old 03-03-2012, 08:32 PM
  #695
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Default RE: Sig 1/4 J3 Kit converted to PA-18 Super Cub (Build)

Really nice find! Thanks for posting it.

Today I went to a scale meet at my club but when I got home I still had some time to start the work on the windshield.

My first step was to make a paper template giving me a close start to the right shape. Next I will make a template from some poster board I purchased. When I get that one pretty much perfect I will transfer the template to the provided plastic and cut it out (Slightly larger). Then I will fine tune the fit and hopefully it will go well.

I am still a bit nervous about this step but it is going good so far. The creation of the paper template, while frustrating at times, wasn't that bad.

SunDevilPilot
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Old 03-04-2012, 01:32 PM
  #696
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Default RE: Sig 1/4 J3 Kit converted to PA-18 Super Cub (Build)

I was close to getting the windshield done but unfortunately I had to order some more plastic. I had the windshield fitting fairly well but when I pulled the protective film off the windshield there was some major flaws in the plastic. Knowing it would drive me insane I scrapped the part and ordered some more plastic. I ordered the same plastic, which is .030 in thickness, from Sig but I also ordered some .020 plastic from Balsa USA. I should have lots of plastic in about a week and I'll try again.

The flaws were the result of my foolishness. I used a heat gun to slightly warm the part to allow it to take the shape of the fuselage, which worked really well. Except for the fact the protective plastic coating etched some wrinkles into the windshield. I'm an idiot!

It was looking pretty good!

Small step backwards but not is not the time to start relaxing my standards.

SunDevilPilot
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Old 03-04-2012, 01:54 PM
  #697
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Default RE: Sig 1/4 J3 Kit converted to PA-18 Super Cub (Build)

To keep from wasting the entire day I did the final installation of the motor and cowl.

Prop need some balancing then I'll tighten it up.

SunDevilPilot
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Old 03-04-2012, 03:20 PM
  #698
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Default RE: Sig 1/4 J3 Kit converted to PA-18 Super Cub (Build)

SunDevilPilot;

How much is the shipping charges to get that to Oklahoma City when it is finished?????

Thanks for the build,
Eddie
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Old 03-04-2012, 03:31 PM
  #699
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Default RE: Sig 1/4 J3 Kit converted to PA-18 Super Cub (Build)

You have inspired me to finish my arf Hanger 9 1/4 J-3 Cub. It has a Dle 20 installed already. I ordered the tail braces you used to put on it. You have done an awesome build and I have really enjoyed it.

Thanks,
Eddie
of OKC
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Old 03-04-2012, 04:22 PM
  #700
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Default RE: Sig 1/4 J3 Kit converted to PA-18 Super Cub (Build)

This is a video on how the windshield is in stalled on a full scale Supper Cub: Interesting ...
http://www.viddler.com/v/fac637a1
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