Douglas O-43A (oz4096)


Douglas O-43A (oz4096) by Paul Lindberg 1935 - plan thumbnail

About this Plan

Douglas O-43A. Rubber scale model of the US Army Air Corps observation aircraft.

Quote: "Building the Douglas O-43A. Design by Paul Lindberg, Model editor and model designer for Popular Avation.

This model, built in our laboratory, is a beautiful and realistic bit of work. It flies well and is worthy of your best efforts.

BUILDING and flying the model of the Douglas will thrill you from start to finish. Study the plan carefully and note the many new and improved features. All details have been very carefully worked out, and when the model is completed, it represents an exhibition model as well as a flying model.

The ailerons, elevator and rudder have been improved to such an extent that they operate in very much the same manner as those of the larger ships. This is another exclusive feature developed by our laboratory. All dimensions can be quickly and accurately determined by placing a ruler on the parts to be measured. If you wish a larger model, multiply this measurement by the amount of increase.

Color Scheme. Wing and tail surfaces, yellow; fuselage, struts, etc, olive drab; trimmings, red with white pin stripe; other small details, black. See cover of this issue.

Construction of Fuselage. First, place waxed paper on top of plan to prevent parts from sticking to plan. The fuselage sides are built from 1/16-inch square balsa. The longerons, verticals, diagonal braces, etc are held in place until securely cemented, by inserting straight pins on either side of strips wherever needed. When the sides are completed, the cross-members are cemented into their proper locations. Check carefully front to rear for alignment..."

Quote: "The recent posting of the Douglas O38 by Paul Stark triggered a memory that I had seen a similar plan. I found the Douglas O43A plans by Paul Lindberg scanned from Popular Aviation 1935 which I think I got from Ken Horne's now defunct website some years ago. There is no specific mention of wingspan, but the scans, which were originally 2 pages for each part of the plan (fuselage and wings) seem to indicate a wingspan of around 25 inches [see below]. pdfs of plans and accompanying article attached. I checked on Vinplandex and these plans were posted on page 338 of rcforums by 50+Air Years, but haven't made it into Outerzone."

Direct submission to Outerzone.

Supplementary file notes

Article pages, text and pics, thanks to GTHunter.


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Douglas O-43A (oz4096) by Paul Lindberg 1935 - model pic

  • (oz4096)
    Douglas O-43A
    by Paul Lindberg
    from Popular Aviation
    March 1935 
    36in span
    Scale Rubber F/F Parasol Military
    clean :)
    all formers complete :)
    got article :)
  • Submitted: 07/03/2013
    Filesize: 383KB
    Format: • PDFbitmap
    Credit*: BarryNelson, khorne, 50+AirYears
    Downloads: 2413

  • Douglas_O-43 | help
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    ScaleType: This (oz4096) is a scale plan. Where possible we link scale plans to Wikipedia, using a text string called ScaleType.

    If we got this right, you now have a couple of direct links (above) to 1. see the Wikipedia page, and 2. search Oz for more plans of this type. If we didn't, then see below.

    ScaleType is formed from the last part of the Wikipedia page address, which here is
    Wikipedia page addresses may well change over time.
    For more obscure types, there currently will be no Wiki page found. We tag these cases as ScaleType = NotFound. These will change over time.
    Corrections? Use the correction form to tell us the new/better ScaleType link we should be using. Thanks.

Douglas O-43A (oz4096) by Paul Lindberg 1935 - pic 003.jpg
Douglas O-43A (oz4096) by Paul Lindberg 1935 - pic 004.jpg

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User comments

For me, this measures at 36in span, so have listed it at that size. Anyone who knows the correct wingspan for this model, let me know and I'll resize the plan accordingly.
SteveWMD - 07/03/2013
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* 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.


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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