Beachcomber (oz7780)


Beachcomber (oz7780) by Jim Kirkland 1963 - plan thumbnail

About this Plan

Beachcomber. Radio control pattern model.

Quote: "Quadruproportional R/C model that won first in Multi at the 9th Annual King Orange Internats - flown by the designer, it won by a convincing margin.

In early 1962 a decision was made to take a long, hard look at the new quadruproportional control systems for R/C multi competition. These systems seemed to offer unlimited opportunities for smooth and precise flying. At the '62 Nats it was apparent that winning R/C flights not only had to be smooth, but also high points had to be scored on every maneuver in the present AMA pattern. This pattern requires our models to perform some remark-able aerodynamic feats when compared to full scale air-craft performance capabilities. As the top scores at the 1962 Nats would indicate, present day multi designs flown with reed systems do a very creditable job of this. However, these top scores also indicate that there is consider-able room for improvement before this present AMA pattern becomes obsolete; which will surely occur at some future date! I flew a reed ship at the '62 Nate and came away more convinced than ever that the new proportional systems could do better than reeds in meeting the demanding requirements of competitive flying.

Most present day reed designs have some necessary compromises 'built in' to enable them to perform as smooth as possible by 'hiding' the beeped commands. While these compromises make a certain degree of smoothness possible with reeds, they also affect other areas of performance to some degree. To overcome this now built-in deficiency, additional measures must be taken to enable the model to perform the more demanding maneuvers consistently. These additional measures must usually be paid for in some manner; commonly in the areas of time, cost, gadgetry and possibly some sacrifice in overall reliability. I felt that the new proportional systems would eliminate the compromise and deficiency problems and thus allow us to fly in the same manner as would a pilot flying a full scale aircraft. With these systems we should be able to develop 'in the cockpit' capabilities while flying our R/C models.

I had heard much about the controversy as to whether the new proportional systems could match the reed systems for precision maneuvers. My experience as a pilot of full scale aircraft, where emphasis is on smoothness and precision, revolted at this supposition. Proportional would offer us, as R/C fliers, the same advantages enjoyed by the pilots of full scale aircraft. What was needed now was a multi design to take full advantage of the new propor-tional systems.

I had flown most of the more prominent multi designs on reeds, and there seemed to be a little something missing in each as I considered them for proportional. Soon I realized that I was exploring in a relatively unknown area. This was when I first gave serious thought to the designing of the Beachcomber. I wanted a model that would fly as precise as any reed model, yet respond to controls properly in any attitude, or condition of flight. I wanted a model that would fly inverted as well as it would upright, and remain just as stable; and do this with a minimum of trim differential. I wanted a model that would spin reliably with no trim change; one that would tail-slide reliably; one that I could roll slow or fast as required. In short, all the things I had wanted from a reed design but had failed to find for obvious reasons. If I was going to try my hand at this design thing, I might as well go for broke..."

Direct submission to Outerzone.

Update 07/06/2016: article pages, text & pics added, thanks to RFJ.

Supplementary file notes



Did we get something wrong with these details about this plan (especially the datafile)? That happens sometimes. You can help us fix it.
Add a correction

Beachcomber (oz7780) by Jim Kirkland 1963 - model pic

  • (oz7780)
    by Jim Kirkland
    from Model Airplane News
    May 1963 
    64in span
    IC R/C LowWing
    clean :)
    all formers complete :)
    got article :)
  • Submitted: 07/05/2016
    Filesize: 1209KB
    Format: • PDFbitmap
    Credit*: JJ
    Downloads: 1946

Beachcomber (oz7780) by Jim Kirkland 1963 - pic 003.jpg

Do you have a photo you'd like to submit for this page? Then email

User comments

Photo of completed Beachcomber model was found online at
SteveWMD - 07/06/2016
Add a comment



Download File(s):


* 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.


Terms of Use

© Outerzone, 2011-2024.

All content is free to download for personal use.

For non-personal use and/or publication: plans, photos, excerpts, links etc may be used, provided that full and clear credit is given to Outerzone with appropriate and specific direction to the original content i.e. a direct hyperlink back to the Outerzone source page.

Unauthorized use and/or duplication of this material without express and written permission from this site's owner is strictly prohibited. If we discover that content is being stolen, we will consider filing a formal DMCA notice.