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Skylark 56 – 1966 Flashback - Build

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Old 01-07-2013, 04:03 PM
  #76
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Default RE: Skylark 56 – 1966 Flashback - Build


Quote:
ORIGINAL: dhal22

Nice to see other comments on this classic. Enjoying the build Mike, thx.
Thanks David. Going to be cool to fly it and have the sun shining through the translucent red on the open framework. Got to research the best solution for translucent red film. Might try something else besides MonoKote.
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Old 01-08-2013, 03:46 AM
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Default RE: Skylark 56 – 1966 Flashback - Build

The sailplane guys rave about UltraCote Lite.
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Old 01-09-2013, 09:35 AM
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Default RE: Skylark 56 – 1966 Flashback - Build

The horizontal stab construction is going very well. It built very straight and the D tube construction very ridged and solid. The original Goldberg structure could flex and twist a lot when covered with film. Without a silk and dope finish that type of construction loses a lot of strength.

To be continued…
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Old 01-09-2013, 09:40 AM
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Default RE: Skylark 56 – 1966 Flashback - Build


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ORIGINAL: Trisquire

The sailplane guys rave about UltraCote Lite.
Thanks Trisquire. I know there are a lot Ultracote fans but from my experience it has kind of a dull finish compared Monokote.
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Old 01-12-2013, 12:49 PM
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Default RE: Skylark 56 – 1966 Flashback - Build

Working on the 1/16” sheet built-up elevators. The trailing edge will be a 1/8” X 3/16” basswood strip shaped to an edge.

The sheeting does not overlap on the trailing edge. The edge stops at the rib ends forming a 1/8” edge. The trailing edge is squared and the 1/8” basswood is glued to the edge. I plan on doing the trailing edge sheeting on the wing the same way.

To be continued…
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Old 01-12-2013, 01:01 PM
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Default RE: Skylark 56 – 1966 Flashback - Build


Quote:
ORIGINAL: 8178
I know there are a lot Ultracote fans but from my experience it has kind of a dull finish compared Monokote.
Yup, that's my gripe with UC as well. The surface is not relective like MK.

In fact, the old MK was even more glossy than the current stuff.

Transparent UC might not be an issue though.

David
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Old 01-13-2013, 06:08 PM
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Default RE: Skylark 56 – 1966 Flashback - Build

More work on the elevators. The sheeting is on along with the basswood trailing edge and tip blocks. Need to shape the trailing edges and the tip blocks next.

To be continued…
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Old 01-13-2013, 06:11 PM
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Default RE: Skylark 56 – 1966 Flashback - Build


Quote:
ORIGINAL: doxilia


Quote:
ORIGINAL: 8178
I know there are a lot Ultracote fans but from my experience it has kind of a dull finish compared Monokote.
Yup, that's my gripe with UC as well. The surface is not relective like MK.

In fact, the old MK was even more glossy than the current stuff.

Transparent UC might not be an issue though.

David
One of my friends sent me some pictures of his translucent red Ultracote covered aircraft and it looks pretty good. Might be what I’m looking for.
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Old 01-13-2013, 07:38 PM
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Default RE: Skylark 56 – 1966 Flashback - Build

Great progress Mike.

I hope to get your take on transparent UC if you decide to go with it. I understand the stuff is pretty light but I don't know if it's any lighter or better than transparent MK.

MK has become harder to work with (especially on fully sheeted large surfaces like wings) but it still has that luster and it sticks well. I painted over top current white MK recently and it's all holding together pretty well.

I know a lot of people are unhappy with MK but I haven't had too many issues yet. Granted, it is a little harder to apply than it used to, at least for me.

David
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Old 01-13-2013, 09:31 PM
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Default RE: Skylark 56 – 1966 Flashback - Build


Quote:
ORIGINAL: 8178


Quote:
ORIGINAL: dhal22

Nice to see other comments on this classic. Enjoying the build Mike, thx.
Thanks David. Going to be cool to fly it and have the sun shining through the translucent red on the open framework. Got to research the best solution for translucent red film. Might try something else besides MonoKote.
Let me suggest a lightweight combination for the partially open structure. Consider covering with light polyspan and dope. It tightens with an iron or heat gun and is very sheer. Then come over the top with red tissue like ply span esaki. Combo sounds heavy but is actually lighter than MK/UK.

But is a fair bit more work
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Old 01-14-2013, 07:01 AM
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Default RE: Skylark 56 – 1966 Flashback - Build

Shaping the elevators.

To be continued…
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Old 01-14-2013, 07:29 AM
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Default RE: Skylark 56 – 1966 Flashback - Build


Quote:
ORIGINAL: MTK


Quote:
ORIGINAL: 8178


Quote:
ORIGINAL: dhal22

Nice to see other comments on this classic. Enjoying the build Mike, thx.
Thanks David. Going to be cool to fly it and have the sun shining through the translucent red on the open framework. Got to research the best solution for translucent red film. Might try something else besides MonoKote.
Let me suggest a lightweight combination for the partially open structure. Consider covering with light polyspan and dope. It tightens with an iron or heat gun and is very sheer. Then come over the top with red tissue like ply span esaki. Combo sounds heavy but is actually lighter than MK/UK.

But is a fair bit more work
Thanks for the suggestion Matt.
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Old 01-14-2013, 07:31 AM
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Default RE: Skylark 56 – 1966 Flashback - Build


Quote:
ORIGINAL: doxilia

Great progress Mike.

I hope to get your take on transparent UC if you decide to go with it. I understand the stuff is pretty light but I don't know if it's any lighter or better than transparent MK.

MK has become harder to work with (especially on fully sheeted large surfaces like wings) but it still has that luster and it sticks well. I painted over top current white MK recently and it's all holding together pretty well.

I know a lot of people are unhappy with MK but I haven't had too many issues yet. Granted, it is a little harder to apply than it used to, at least for me.

David
I am a MK fan and it works well for me but I think I might try UC again.
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Old 01-14-2013, 03:22 PM
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Default RE: Skylark 56 – 1966 Flashback - Build


Quote:
ORIGINAL: doxilia

I hope to get your take on transparent UC if you decide to go with it. I understand the stuff is pretty light but I don't know if it's any lighter or better than transparent MK.
Some of the sailplane guys (like Mark Drela) recommend transparent UltraCote Lite. Its lighter, but presumably less durable than standard UltraCote.
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Old 01-15-2013, 10:08 AM
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Default RE: Skylark 56 – 1966 Flashback - Build

More work on the stab tips and elevators. It is all shaping up pretty well.

To be continued…
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Old 01-15-2013, 11:53 AM
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Default RE: Skylark 56 – 1966 Flashback - Build

For when the glue is drying! Heli-Max AXE 100CP. No fly bar, collective pitch, 3 axis gyro and 9.5” rotor.

To be continued…
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Old 01-19-2013, 10:41 AM
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Default RE: Skylark 56 – 1966 Flashback - Build

Working on the wing sheeting. The leading edge D tube sheeting is 3” wide with a ¼” thick leading edge. Even though I beveled the leading edge of the sheeting where it joins the leading edge for a tight fit, I have a couple of spots where the glue is showing on the seam. But other than that, I’m really pleased how straight and true the wing is going together.

To be continued…
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Old 01-19-2013, 03:59 PM
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Default RE: Skylark 56 – 1966 Flashback - Build

The 1/6” plywood rib doublers for the wing gear mount blocks. There will be two for each gear mount.

To be continued…
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Old 01-19-2013, 04:33 PM
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Default RE: Skylark 56 – 1966 Flashback - Build

Your building looks nice & neat. Very clean. looking GREAT!.......Gene
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Old 01-20-2013, 05:57 AM
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Default RE: Skylark 56 – 1966 Flashback - Build

Test fitting the gear mounts. The wing sheeting will go over the gear block area.

A bit off topic but pretty cool. I expect you have all seen James May on Top Gear but I didn’t know he was a plastic model builder. Pretty neat piece about building a full size Airfix plastic Spitfire with help from young kids http://www.youtube.com/watch?v=zID8rnZcshs I think the neatest part is how he involves the kids in the project.

To be continued…
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Old 01-20-2013, 05:58 AM
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Default RE: Skylark 56 – 1966 Flashback - Build


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ORIGINAL: gene6029

Your building looks nice & neat. Very clean. looking GREAT!.......Gene
Thanks for the comment Gene. So far the project has been much fun.
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Old 01-20-2013, 01:47 PM
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Default RE: Skylark 56 – 1966 Flashback - Build

Using a part from my Tower Kaos 40 kit as a template I cut the final gear blocks on a table saw. Will be gluing the doublers and gear block in with epoxy and then the sheeting on the trailing edge next.

To be continued…
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Old 01-21-2013, 12:06 PM
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Default RE: Skylark 56 – 1966 Flashback - Build

The 3” wide lower trailing edge is glued in place and I’m doing some pre-work for the ailerons before I sheet the top. I’ve glued in the parts that will be end caps for the ailerons when I cut them out later and added some balsa for the aileron linkage. I’m re-purposing the 22+ year old aileron torque tube linkage and fixed gear wires that I did not use in my Tiporare kit.

I’ve modified the Tiporare gear wire to make the track a little wider and still use the standard Skylark gear mount position. The idea for the outward angle I got from a friend and I’ve used the idea with good success on other fixed gear aircraft. It gives the gear a bit of extra soft flexing on landings.

To be continued…
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Old 01-21-2013, 12:32 PM
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Default RE: Skylark 56 – 1966 Flashback - Build

I made some small saw cuts on each end of the aileron so I can easily find the ends later after the top sheeting is installed.

Added some balsa blocks at the wing hinge points.

To be continued…
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Old 01-22-2013, 08:50 AM
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Default RE: Skylark 56 – 1966 Flashback - Build

The top sheeting and basswood trailing edge is on. The 3/16” X 1/8” basswood comes in 24” lengths so I make the joint at the aileron cut line. So far the wing is building straight and true.

To be continued…
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