Skylark 56 (oz11620)

 

Skylark 56 (oz11620) - plan thumbnail

About this Plan

Carl Goldberg Skylark 56 (early version). Radio control sport model.

Note the Skylark 56 (oz1842) plan has been up on Outerzone for some years now, since 2011. This here is an interesting variation - an earlier version (presumably, the first ever version) of the Skylark 56 plan, for comparision.

A check between the two plans shows differences such as the amount of dihedral used (6-1/4 inches here, 3 inches on the later plan). Also plywood wing joiners used later, replacing the balsa used in the early plan.

Note we are continuing to link to the later Skylark 56 (oz1842) plan as the primary listing of the Skylark design.

Quote: "Here is a copy of the original Carl Goldberg Skylark plan for a .09 to .19 engine just to round out your database."

Note this plan scan is greyscale, at 100 dpi.

Direct submission to Outerzone.

Update 9/12/2023: Replaced this plan with a clearer copy, thanks to DPlumpe.

Quote: "Steve & Mary, Here's a much sharper plan for Goldberg's early Skylark 56 (oz11620), and a much smaller file size. I picked up this plan back in 2010 but I forget it's source. I'm tempted to build it just to see if an .09 will actually get it off the ground or if it'll need a hand launch."

Direct submission to Outerzone.

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Skylark 56 (oz11620) - model pic

Datafile:
  • (oz11620)
    Skylark 56
    from Carl Goldberg (ref:G-21)
    56in span
    IC R/C LowWing Kit
    clean :)
    formers unchecked
  • Submitted: 12/10/2019
    Filesize: 2105KB
    Format: • PDFbitmap
    Credit*: PaulWhitely
    Downloads: 1673

Skylark 56 (oz11620) - pic 003.jpg
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Skylark 56 (oz11620) - pic 006.jpg
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User comments

This plan of the Skylark is, as correctly stated, just an update of the original kit of the early 60s. No twin version plans which is a pity. It was printed on the back side of the plan of the first production run of the kit.
I built one, single engine, about 40 years ago. Had a Torpedo Green head .35. Flew beautifully but had the tendency to "flat spin" I wrote to Carl and he told me to increase the rudder area. It helped but not completely. That is why on the final production Skylark, he completely modified the back section of the fuselage. Still a sleek beautiful model with good performance. It is a "one day" build but twin engine with a couple of ASPs .12.
Best wishes and greetings from Colombia.
Eduardo - 14/10/2019
Added some super Skylark 56 photos, thanks to htwist [more pics 003-006].
Mary - 11/07/2020
What a great I flew many vertical fin added 3/16to leading edge and 1/4 to rudder trailing edge. O/S .61 power would fall right out of a flat spin! One of my most favorite aircraft.
Keith Small ama member since 72
Keith small - 09/12/2023
I had one built in 1966; it had been flown with a Cox .15 Medallion, then retired for decades before I got it. I put an OS 25 FP on it, which was very good power, but it was uncomfortable to fly on rudder and had a lot of tail wag coming out of turns. I tried enlarging the rudder, but was not happy with it till I cut off most of the TE and made it into ailerons. I believe this plane originally had insufficient side area aft of the CG.
buzzard bait - 14/12/2023
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Notes

* Credit field

The Credit field in the Outerzone database is designed to recognise and credit the hard work done in scanning and digitally cleaning these vintage and old timer model aircraft plans to get them into a usable format. Currently, it is also used to credit people simply for uploading the plan to a forum on the internet. Which is not quite the same thing. This will change soon. Probably.

Scaling

This model plan (like all plans on Outerzone) is supposedly scaled correctly and supposedly will print out nicely at the right size. But that doesn't always happen. If you are about to start building a model plane using this free plan, you are strongly advised to check the scaling very, very carefully before cutting any balsa wood.

 

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